| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 603.1 | chandler distortion - A-OK | DRUID::MARIANI | | Fri Apr 22 1988 11:42 | 20 |
| Rick,
Don't know about most of the stuff you mentioned except for
the Chandler Tube distortion. It's great. I got one a couple of
weeks ago and it really does have the sound I'm looking for. It's
smooth, and has a wide range of distortion. It comes with an output
level, distortion level and bass, mid, and high end parametric EQ's.
I had been using the distortion built in to the Peavey Bandit
I have, but the Chandler is much more realistic as far as a nice,
warm distortion is concerned. The best $100 I ever spent. One
more nice feature is the switch itself. You don't have to stomp
on it, just brush your toe across the button and the unit is on.
Also, there's no ON/OFF switch for the AC power. Plug it in, and
the unit works. There's also two LED's to let you know which mode
the unit is in. (red for distortion, green for bypass.)
Good luck,
Ted
|
| 603.2 | Where'd ya get it? | BUSY::JMINVILLE | Eat The Rich | Fri Apr 22 1988 16:42 | 5 |
| RE: -.1
I'd be interested in learning where you bought the Chandler Tube
distortion for $100, I've been quoted a price of $140.
-- Joe.
|
| 603.3 | Apples or Oranges? | VIDEO::BUSENBARK | | Fri Apr 22 1988 17:02 | 4 |
| Was that the floor pedal or rackmount flavor for $100?
Rick
|
| 603.4 | Wurly's | MARKER::BUCKLEY | We Will Rock You! | Fri Apr 22 1988 17:15 | 7 |
|
Go to Wurlitzers in Boston. Their prices might not be great, but
they have the DSP-128, the Chandler, the Metaltronix, the Groove
Tube preamp, and all the effects you could ever want to hear or
see. I was surprised...its worth aa trip.
wjb
|
| 603.5 | Groove Tube preamp ?? | ANGORA::JACQUES | | Mon Apr 25 1988 09:47 | 13 |
| I have tried the Chandler tube driver (Rack mount version). It
isn't bad for the money. I have seen this unit in 2 stores for
around $200. I don't know how much the floor unit generally goes
for, but I think it is around $139.
I am interested in checking out the Groove Tube preamp. I have
a few questions about it. First of all what is the average price
of one of these preamps. Second of all, can you bypass the speaker
emmulator and use the 30 watt power section to drive a speaker ?
Does it allow for channel switching ? How about an effects loop ?
Mark Jacques
|
| 603.6 | GT Preamp | AQUA::ROST | That's right, Sam | Mon Apr 25 1988 11:46 | 9 |
|
Re: Groove Tubes
Yes, you can drive a speaker with it. There's an effects loop.
Price???? There's a GP review of it a few months back....they loved
it.
|
| 603.7 | More on the Chandler | DRUID::MARIANI | | Wed Apr 27 1988 10:46 | 15 |
| The Chandler I got was the floor model. The rack mount has
many more ways to vary the sound. (much more flexible.)
Fortunately, the floor model does everything I want it to.
If you're thinking of a studio application maybe the rack
mount is the way to go. I got mine at Acton music. I work
there, and got a discount. (hence the $100 tag.) It's a nice
machine, but I hope the tube doesn't die early. It's supposed
to last 2-4 years (so says the doc that came with it....) but
I imagine it won't be easy to replace when it does go. The
"owner's manual" that came with it says that off-the-shelf
12AX7 tubes may not produce the correct sound and that they're
selected at the factory specifically for their sound when driven.
time will tell .
-Ted
|
| 603.8 | I like the Chandler alot. | MIST::CARSTENSEN | | Wed Apr 27 1988 15:36 | 14 |
|
I bought the Chandler floor model too. I think it sounds
great, especially through a good tube amp like a Boogie.
I paid $115 which I thought was a little high, but after
reading a few replies I guess I got a good price.
One question though: what do you Chandler owners think
of the high eq control? I find it useless and keep it
almost all the way off. Anyone else find that to be
true, or could my unit (or ears!) be defective??
Frank
|
| 603.9 | more on GT preamp. | MORRIS::JACQUES | | Wed Apr 27 1988 16:09 | 45 |
| Re .6, I called EU Wurlitzer's about the GT preamp. They said
it is selling for $799, but list for around $1000. That puts
it well beyond my reach. The main reason I am interested in this
particular tube preamp is because GT claims (And I am inclined
to agree with them) that real good tube distorsion comes from
overdiving power tubes, and output transformers, not preamp tubes.
The GT preamp is actually a 30 watt amp, with a "speaker emulator"
built in. The true test is whether or not this speaker emulator
puts out a good sound, that can be amplified by any amp or PA.
Perhaps someone can educate me, but my Twin Reverb amp has a master
volume control on it, which allows you to crank the channel, and
turn down the power amp. In theory it sound great, but in reality
it sound like s%^t. If you crank the amp up to 10 (if you can stand
the 100+db spl) it screams. My impression of the Chandler Tube Driver
is that at low to moderate gain settings, it puts out a pretty good
sound, but as soon as you set the gain above 5, it tends to put
out a rattling sound, rather than a nice smooth distortion. This
is my biggest complaint about many of the amps, preamps, and effects
that I have demoed, as well as the distortion built into my Twin.
I was looking at a Used Fender 75 all tube amplifier (head only).
If I decide I like it, I can pick it up for a very reasonable price.
It is about 5-8 years old, has channel switching, reverb, fx loop,
and a quick listen indicated a pretty good distortion sound. I have
a cab at home I could use with it. Does anyone know anything about
these amps ? Are they considered a decent amp, or should I forget
it ? Dave Bottom, you mentioned this amp in note 395. If I remember
correctly, you said they were a real screamer. If I like this head,
I can probably grab it for $250-300. Is this a good price for it?
I realize it probably won't stand up to a good Mesa Boogie, or
Marshall, but if it fits my needs, I might grab it. I would like to
have 2 amps to get stereo effects anyways. The way I see it, why
should I buy a Chandler tube driver (rack mount) for $200, when I
can probably get this amp for $250. I am not 100% happy with the
sound of the tube driver anyways.
No offense to tube driver owners. I admit that I am very fussy about
distortion, and may never be happy with what I can afford anyways.
Mark Jacques
|
| 603.10 | more questions... | VIDEO::BUSENBARK | | Wed Apr 27 1988 16:34 | 15 |
| I heard the Chandler rack mount at Acton Music several months
ago when I wasn't in the market. It was demo'ed for me with some
non-descript guitar. I thought I heard it go from a very gritty
trebly distort to a nice smooth singing distortion. What I'm interested
in is the capabilities of having more flexibility with both tone
and the amount of distortion. In reality having another complete
amp to cart around with a cabinet is something I'd like to avoid.
Plus the maintenance involved in upkeep etc... I guess I will
have to make a trip to really check out a Chandler somewhere.
It sounds like there are a lot of tonal possibilities with a
Chandler how about getting different levels/amounts of distortion?
Like for a rhythmn chords and not necessarily power chords?
Rick
|
| 603.11 | Tone Washout | AQUA::ROST | That's right, Sam | Wed Apr 27 1988 16:55 | 15 |
|
Re: .8
If you're turning up the distortion pretty high, it's no surprise
that the high EQ seems not to work.
This "tone control washout" has to do with the fact that since
distortion adds so much hi-end overtones that the amount of treble
boost has little to do with the final sound.
What you want is a treble control that appears *after* the distortion
stage, which I doubt is how the Chandler is set up. A Marshall
or old Fender "presence" control is such a control.
|
| 603.12 | | MTBLUE::BOTTOM_DAVID | Stratocaster master | Thu Apr 28 1988 10:37 | 8 |
| Mark the Fender 75 head is a great head, they really do scream.
However they had a slight problem with temperature...adding a small
fan to help keep the temp down was recommended by my old repariman,
otherwise they eat the power tubes pretty fast...as far as the price
I dunno what the market value really is. I liked them and wish I
had one but I already have two amps so.....
db2
|
| 603.13 | More questions and answers | MORRIS::JACQUES | | Thu Apr 28 1988 23:53 | 31 |
|
Re. .6 It took me a while but I found the GP review of the GT tube
preamp. It is in the May '87 issue. They show the man. list price
as $900. I haven't read the article in full yet, but so far it does
not mention channel switching or effects loop in the feature section.
Re .7 I wouldn't replace the 12AX7 tube in the Chandler with a
Sylvania, Motorola, RCA, etc. but a Groove Tube, or Mesa tube should
work fine. They both do extensive testing to ensure every preamp
tube meets tight specs.
Re. .12 Dave, I have a couple more questions about the Fender 75
head. I found an old Fender ad in a 1980 vintage Guitar Player
mag (the one with Jeff Beck on the cover). The models pictured
have black grille cloth with black-faced panels. The one I am looking
at has silver grille cloth with a black-faced panel. It appears
to be original. Do you know if they ever came through with silver
cloth, and if so, during which model years were they available.
One more question, and I promise I'll let ya be. What kind of power
tubes does this amp take, and how many. The reason I ask is because
I am afraid I may not like the sound of this amp if the tubes are
old and worn. I want to give this amp a fair listen since the price
is right, and I like the features. If it takes 6L6GC's I might just
bring my Groove Tubes along and try them in it.
I appreciate any input people have to offer. Thanks for the
info you have provided thus far.
Mark J.
|
| 603.14 | | MTBLUE::BOTTOM_DAVID | Coming soon on a node near you | Fri Apr 29 1988 09:52 | 10 |
| Mark,
I dunno abou the tubes...I also dunno about the cloth etc...
these things were hot around 1980-81 and then they dissappeared
off the market..they were made in two packages...
One was just the head, the other was the amp with a single 12" built
into the cabinet...both versions screamed....they were fairly expensive
if I remember correctly around $1K for the version with speaker
db2
|
| 603.15 | How about the ADA? | VIDEO::BUSENBARK | | Fri Apr 29 1988 13:43 | 9 |
| Did anyone get around to buying the ADA midi Distotion unit?
And for those of you who really tried it what did you think? I had
a chance to try the Gp8 with a midi pedal and was amazed how easy
it was to have all your presets setup and ready at the push of a
button. For a covers type situation this would be ideal.... It also
claims to have 2 internal tubes and solid state distortion,eq etc.
Rick
|
| 603.16 | | RANGLY::BOTTOM_DAVID | Coming soon on a node near you | Fri Apr 29 1988 14:41 | 5 |
| Well the local dealer has one that's been broken for 4 months now
and he still hasn't shipped it back...is it any wonder that I do
most of my business mail order?
db2
|
| 603.17 | .15 please clarify | PLDVAX::JACQUES | | Fri Apr 29 1988 15:58 | 4 |
| Re. .15 I am confused. Are you implying the GP8 has tubes or the
APA MP1. As far as I know, the GP8 has no tubes.
Mark
|
| 603.18 | clarification.... | VIDEO::BUSENBARK | | Fri Apr 29 1988 16:49 | 6 |
| The Gp8 has no tubes,but the ADA distortion unit does sorry
if that was misleading. Even more so I really didn't hear a tube
distortion sound out of a GP8,but it wouldn't suprise me that we
haven't found it yet as there are so many different options with
this device.
|
| 603.19 | Fender 75's | SPHINX::WEBER | | Mon May 02 1988 11:52 | 4 |
| Fender 75's have suffered serious reliability problems. If you
can find a recent Fender Concert head, you'll get a more versatile,
better sounding amp for the same bucks, and it will probably live
a lot longer.
|
| 603.20 | Morley Pedal | NCVAX1::DICKS | Only the Good Sell VAX | Mon May 02 1988 13:52 | 11 |
|
Does anyone have any experience with Morley Fuzz-Wah boxes? It look's
like it has a foot switch to kick in the Fuzz and Wah Pedal, and I
assume it doubles as a volume pedal as well. It has a tone and
Intensity pot for the Fuzz. I have a chance to pick one up for $35.
It looks like it's in good shape, but it is physically huge and runs on
AC. Is this worth it?
Scott
|
| 603.21 | Assault on batteries! | DREGS::BLICKSTEIN | The height of MIDIocrity | Mon May 02 1988 14:52 | 25 |
| I have exactly that pedal.
If I remember correctly (haven't used it since Summerjam) it's a
sorta bizarre thing. With the fuzz kicked in the pedal
alternates between fuzz and no-fuzz.
Regarding wah, it's actually a "power wah". That is, with the pedal
all the way down, its maximum treble. As you back off the pedal,
I believe it decreases BOTH the treble AND the volume. However,
I find that you can still use it as a wah pedal even though it
works this way.
With neither wah nor fuzz, it's a straight volume pedal.
With BOTH wah and fuzz, as you let out on the pedal, it increases
the fuzz and the treble. This is a really awesome effect. I just
wish I could use it sometime at a concert. It's a real trip - sounds
like one of those synth "ALIEN SPACESHIP LANDING" type patches.
I consider it running on AC to be an advantage. AC effects tend to be
much higher quality, you don't have to worry about batteries (leaving
the thing on and wearing them down, having them burn out at the wrong
time, etc.)
db
|
| 603.22 | Morley makes good stuff | CSC32::G_HOUSE | Greg House - CSC/CS | Mon May 02 1988 19:59 | 6 |
| I don't have any experience with the Fuzz Wah, but have a plain
old Morley volume pedal. I've had it for about three years and
have had absolutely no trouble with it. It's smooth and quiet.
Runs on a 9v battery, which I haven't had to replace yet.
Greg
|
| 603.23 | Morley pedals are very good !! | ANGORA::JACQUES | | Mon May 02 1988 21:36 | 37 |
| I have a Morley Pro Panner. This pedal doubles as a straight
volume pedal, and a Panning pedal. It has 1 input and 2 outputs.
In the panning mode it pans the signal to either or both outputs.
This is nice if you have an older (non channel switching) amp or
2 amps.
The biggest advantage of Morley pedals vs. other pedals is the
photo-electric operation. Other pedals use a potentiometer with
a pinion gear attached to it, and a rack gear attached to the
pedal. As you move the pedal up and down the rack turns the pinion
gear and rotates the pot. Any one of the 3 pieces can wear out
and break. The morley pedal has a fixed light source, with a photo
cell attached to the moving part of the pedal. When you move the
pedal up and down, the photo cell senses changes in light intensity.
The only moving part is the pedal itself. The only thing that can
wear out is the light bulb, which you can replace yourself easily.
I have had my Morley pedal for about 8 years. When I bought
it, I also bought a spare light bulb, but I have never had to change
it yet. I used it to gig steadily for about 3 years, but it has
seen very light use since.
The only disadvantage to the older style Morley pedals is the
size and weight. They have redesigned the new ones and made them
much smaller & lighter.
As far as battery vs. ac powered, I think ac powered is best.
Since these pedals use a rather bright light source, I would imagine
they would eat up batteries, but I could be wrong on this point.
The best would be dual function (ac and battery), but I doubt if
they offer this feature.
I paid over $100 for mine when I bought it new. $35 sounds like
a good price to me.
Mark Jacques
|
| 603.24 | Home Grown = Best so Far | FSLENG::CAMUSO | localtime(time(t))->tm_wday >= 5 ? | Tue May 03 1988 09:55 | 22 |
| About ten years ago, I set about designing my own distortion box,
because I could NOT find a commercial unit that did the job satis-
factorily. They all sounded to "clippy-fuzzy" and they HISSED LOUDLY.
Decided to take a preamp approach using FETs, whose transconductance
characteristics closely resemble those of tubes. I was able to
get all the distortion I needed out of a mu-connected pair of JFETs
with a CMOS array post-amp/buffer. Futhermore, the distortion was
very warm and tube-like. The circuit drains lttle more than 1 mA,
so with a 500 mA-hr alkaline 9-volt, it runs a LONG time between
battery changes. Furthermore, the noise level is less than any
effect I've used, with the exception of Digital Delay.
As a consequence, I haven't even bothered to try any of the new
distortion products to see if they outperform my home-grown favorite.
From what I see here, perhaps it's time I did. I thought everyone
was happy with their distortion effects, and the last thing the
world needed was yet another distortion box.
tc
|
| 603.25 | tonality and the effect | VIDEO::BUSENBARK | | Tue May 03 1988 10:05 | 5 |
| Well Tony they have changed a bit,but I have found that when
switching from using a single coil pickup to a humbucker there was
a big difference in sound which I'm trying to conpensate for....
I may end up with soldering gun in hand yet as I haven't had
much luck.....
|
| 603.26 | More Gain ... | FSLENG::CAMUSO | localtime(time(t))->tm_wday >= 5 ? | Tue May 03 1988 12:28 | 13 |
| Re: -.1
By "difference in sound," d'ya mean the lower distortion accompanying
the lower output of the single coil? One way to mitigate this effect
is for the distortion preamp to have so much gain that changes in out-
put level and waveshape are logarithmically proportional to changes
in input amplitude, so as to have a compressing effect. Alternatively,
you can connect a "preset" footswitchable resistor in parallel to the
gain pot of the preamp to kick-in the extra gain for the single-coil.
tc
|
| 603.27 | Maybe..... | VIDEO::BUSENBARK | | Tue May 03 1988 13:39 | 11 |
| Perhaps more control of distortion and tone,gain I can get plenty
of via the preamp and an Eq with a 18db increase. Whether I want a raunchy
distortion or a singing lead,I have no problem,however having a distorted
rythmn without as much distortion or tonality is a problem. The gain boost
with single coils could help and maybe trying a pan pedal with signals going
to a clean amp and a dirty amp sound I could balance the overall sound.
Finding what I want in a package has been difficult...... Some
of which is due to the nut behind the wheel who is driving. :^)
Rick
|
| 603.28 | More on Control Pots | FSLENG::CAMUSO | localtime(time(t))->tm_wday >= 5 ? | Tue May 03 1988 14:12 | 17 |
| Re: -.1
Check the Distortion pot to see if it's a Linear, Audio, or Log
taper. You may want to experiment with these to affect the greater
resolution you seek in that area of the distortion circuit's
response. It's difficult to characterize the cicuit's response
without expensive equipment (scope/spectrum analyzer), so you're
left with the empirical method. You may want to try the same with
the tone control(s).
The circuit I use exhibits a logarithmic dynamic response. Using a
log taper pot to control it increases control resolution as distortion
increases. This makes for a wider range of distortion sounds without
having to "pinpoint" the control.
tc
|
| 603.29 | thanks!!! | VIDEO::BUSENBARK | | Tue May 03 1988 15:47 | 5 |
| good suggestion as I'm sure the pot's are linear and I will
give it a try..............
Rick
|
| 603.30 | Dual amps = maximum flexibility | MORRIS::JACQUES | | Tue May 03 1988 16:16 | 20 |
| Re .27, this is why I have been talking about a dual amp setup
for a while. If you want to go from super clean to nasty dirtortion,
you switch from one amp to the other via a panning pedal or A/B
switch. If you want to make the most of stereo effects, then set
both amps for a clean sound at the same volume, and away you go.
I will not rest until I have a new amp. It may take me a while, but
I am saving my pennies, and looking around in the mean time. I decided
against the Fender 75 head mentioned in earlier replies, even though
I could afford it. Hearing that they had temperature problems, and
other reliability problems helped me to decide, but I really would
rather get a combo anyways.
It should be interesting figuring out how to wire everything up
so that I can quick change from super clean to distortion to stereo
effects, etc, but I have some ideas in mind. I will probably run stereo
whenever I want a clean sound, and switch to mono for distortion only.
Mark Jacques
|
| 603.31 | I like it!!! | VIDEO::BUSENBARK | | Tue May 03 1988 17:11 | 13 |
| I presently use a dual amp setup (four channels)and switch between
pseudo-stereo to mono,for different effects. Plus I use an A/B switch to go
from clean to distorted channels I find it works well and I'm currently
considering trying a pan pedal effect for more control.... A/B switches are
noisy and I'd recomend spending the money to get a digital switch setup. Dod
makes an analog setup which I've seen for $25. But it is noisy... I built my
own analog switch for a little less money........Next project is to do
it without the pops and clicks.....distortion/chorus in stereo is very
pleasing and filling.
Rick
|
| 603.32 | You can try my Morley of you want | ANGORA::JACQUES | | Thu May 05 1988 10:14 | 20 |
| Rick,
As mentioned an earlier reply, I have a Morley Pro Panner pedal.
If you would like to try it, and are close to Marlboro, I wouldn't
mind letting you try it out for a day or two.
It has one input, and two outputs. 2 modes, volume, and pan.
It also has two pots for adjusting throw, and separation.
You can set it so it will go from one amp to the other with a
"hole" in the middle (when the pedal is halfway up, the sound doesn't
go to either amp), or you set it so that in the middle position
the signal gets through to both amps. The pot that adjusts the throw
actually works as a dimmer. By dimming the bulb, you get a shorter
throw, and by making it brighter, you can lengthen the throw.
Let me know.
Mark Jacques
will
|
| 603.33 | well.... | VIDEO::BUSENBARK | | Thu May 05 1988 14:42 | 10 |
| Thank's Mark for the offer,but I tried to simulate a pan situation
with a y-chord and playing with amp volume controls to get a mix
to get the sound I wanted... Which didn't make it....
At least for me......
Thanks again!
Rick
|
| 603.34 | loose nuts/bolts | CRONIC::PCUMMINGS | | Mon May 09 1988 21:31 | 9 |
| re. .22 and other Morley related notes.... I have a power
wah/volume/boost. the only complaint I have is that those damn
pivot nuts come loose and I have to tighten 'em with a wrench...
If you tighten 'em too much, the pedal squeeks. anybody run into
this?...
/paul
|
| 603.35 | re .34 | MORRIS::JACQUES | | Tue May 10 1988 11:12 | 7 |
| re. .34 I had to tighten my Morley pedal...once in ten years.
It got to the point where it would not stay up. I think I used
a little light machine oil, so I could give it a good tightening,
without it squeeking. I don't see this as much of a draw-back, though.
Mark J.
|
| 603.36 | A voice from the past.... | EXPERT::JNELSON | Animals think they're pretty smart | Thu May 12 1988 13:14 | 4 |
| I've got the Volume/Power Wah/Rotating Sound unit, and I often have
slippage... Rubber washers tend to minimalize it, though.
Jon
|
| 603.37 | Digitech DSP-128? | DECSIM::BERRETTINI | Penn Jacobs, DTN 225-5671 | Fri May 27 1988 12:05 | 1 |
| Any comments on the Digitech DSP-128?
|
| 603.38 | DSP-128 ... Not too shabby... | CCYLON::ANDERSON | | Fri May 27 1988 18:47 | 6 |
| It is an excellent piece of equipment. There are several notes
on it here in the conference so I won't reitterate all that detail.
I am very pleased with mine.
Jim
|
| 603.39 | DSP-128 | SALEM::DACUNHA | | Fri Dec 30 1988 09:33 | 40 |
|
For $399.00 it's definitely worth it, but
for "live" use you will have to buy the midi-pedal and that
will cost another $149.00 then ~$15.00 for the adapter.
Still at $550.00 it's a great addition to
any guitar set-up.
GOOD POINTS
Low price rugged (for a rack mount)
VERSATILE! runs up 3 effects at once
All parameters adjustable- 16 bit mp
in real time easy to program
128 patches VERY quiet (s/n 70db)
good dynamic range STEREO ins and outs
line/mic attn ni-cad batt backup
delay to 2+ sec
Bad Points
freq. response to 12k need midi controller to
use live
about 1.5 sec delay between
patches EQ is really just a "rolloff"
As you can see the good points outweigh the bad
NO DOUBT the Biggest bang for the buck
Hope this helps
CMD
|
| 603.40 | Reliability problems? | TROA01::HITCHMOUGH | | Fri Jan 06 1989 10:45 | 13 |
| I agree with most of the comments on the DSP 128 except that I have
had TWO of them and both have gone back to the shop as faulty. The
guy at the store eventually said that since they have now stopped
making them (being replaced by a similar unit with better specs
and a similar price) he would give me full credit for it. Maybe
there's a problem with reliability so I'm not taking any more chances
and he will give me an Alesis Quadraverb (20k bandwith, 4 simultaneous
effects, slightly more $$) when he gets them in. Apart from that
I was very pleased with the unit for the price. I don't know how
I did without it.
Ken
|
| 603.41 | Save my sound!!! | TYFYS::MOLLER | Halloween the 13th on Elm Street #7 | Sun Jan 08 1989 00:07 | 99 |
| This may not be the approprate place for this, maybe there should be a
note that contains schematics, but....
I never used my stomp box compressor (Boss Compression Sustainer CE-2)
that much because of the dramatic effect that it had on the dynamics
of my guitar playing (like the transients that make the guitar so
unique are thrown away & an attempt to maintain a single level of
output - leaving a less than guitar feel to the sound). I usually
feed the output of the compressor to my Distortion box (home brew,
with selectable distortion modes 1) LED's 2) Silicon Diodes
3) Germainium Diodes in the feedback loop of the distortion circuit),
and I really want at least some of the dynamics to be passed thru.
It occurred to me that I could add a simple active ciruit that bypassed
the compression circuit, but, where do I put it?? Since I always use
battery eliminators (I've learned never to trust batteries when you are
playing live), I decided to see if I could get the circuit to fit in
the area set aside for the battery. I turned out to be easy. Here is
the circuit & parts:
Bypass Circuit
+ 9v
| +------------------+
1 Meg / | |
\ | 2|\ |
/ +--|-\ 100 ohms | 7.5 K + 22 K
Input + | | >--/\/\/-----+-----/\/\/------+-----||----/\/\/---
------||---+-----|+/ 6 | 10uf Output
10 uf | 3|/ \
/ / 2.4 K
\ 1 Meg \
/ |
| gnd
gnd
Op Amp = LM741; Pin 4 = gnd
Pin 7 = +9 Volts
For better isolation, I suggest connecting a 10 ohm
resistor into the +9 Volt circuit, ie:
10 ohms
Battery Eliminator + 9 V --/\/\/---- Connection to all + 9V
connections shown above
This circuit reduces the input to 1/4 of what it originally way coming
into the device, and passes it to the output. You can't simply
connect a wire from the output to the input, cause it may cause
internal problems. To add it in, you need to undo the wire to the
output jack that goes to the output. You need to connect up a
22 K resistor like:
Output Wire 22 K Output Jack
-------------/\/\/-----------------
The 22 K allows you to mix the output of the bypass circuit into
the output of the compressor circuit (notice that the bypass
circuit has a 22 K also). Now, connect the input of the bypass
circuit to the input connection of the input Jack. Connect the
output of the bypass circuit to the output jack (there should
be 2 22 K resistors connected to this Jack). Connect up the ground
wire & the + 9 Volt connection.
All resistors are 1/4 watt & Capacitors are 35 V (anything over 15
Volts should be fine). I cut the perf board to the size of a 9 volt
battery before starting & made sure that it fit before building
anything.
The output of the bypass circuit is not adjustable, however you
could replace the 7.5 K and 2.4 K resistors with a 10K
potentiometer:
in 7.5 K in
------/\/\/----+---- out -----------+
| |
\ \
/ 2.4 K 10 K /<---------- out
\ \
| |
gnd gnd
Then you can tweek it better, but, this assumes that you have space on
the existing compressor for the potentiometer (if you want to be able
to set it to random places). You could also use a small pot that can
be adjusted on the circuit board. It seems however, that the current
shown diagram does wonders for the missing dynamics that the compressor
throws away for you.
I took the wires out for the original battery clip. Taped a piece of
cardboard in the battery holder cavity, them cut a piece of foam rubber
about 1/2 inch thick & laid the board in place, makin sure that no
wires caused any problem. Once it was where I wanted it, I used a
hot-melt glue gun on each end of the circuit card to hold it in place.
As I say, it helps immensly.
Jens
|
| 603.42 | Comments on Nobels SS1? | SUDAMA::SUDAMA | Living is easy with eyes closed... | Tue Jan 10 1989 08:33 | 56 |
| I'd like some opinions on a combination practice amp/multi-effects box.
It's called the Nobels Sound Studio 1 (SS1). I saw the following note
about it on the Arpanet, and checked it out at a store recently. What
I'm looking for is primarily something to use at home for practicing
with headphones, something with a halfway decent distortion. In
addition other effects, especially delay and chorus, would be nice to
have. I don't use any effects right now, other than the overdrive on my
amp, and I'd also like to be able to use this as an effects unit to
fool around with on my amp.
I realize that in order to get a really good multi-effects unit I will
have to pay upwards of $500. This thing is not programmable, and has
limited control over delay, chorus, and distortion. However, it is not
bad sounding for the price ($239 locally), and it seems a lot more
flexible than the Rockman, which is the only thing comparable that I'm
familiar with. If anyone wants more details on it I'd be glad to
oblige.
Any comments would be appreciated (I hope).
- Ram
======================================================================
Newsgroups: rec.music.makers
Path: decwrl!labrea!rutgers!att!whuts!homxb!homxc!spock
Subject: Rockman Alternative
Posted: 4 Jan 89 05:30:17 GMT
Organization: AT&T Bell Laboratories, Holmdel
I got this neat little toy a few months ago that I have
to tell you all about. The Nobels Sound Studio 1 (SS1). It
does all the things the Rockman does, but lets you sound like
yourself. I went to a music store to buy a Rockman, and
tested the various models out. I wasn't impressed. I
decided I did not need that toy, and proceeded to leave.
The salseman stopped me, and showed me the SS1, I said
that's it!
Actually, I would not recommend this to a "Metal Man." It
works best on the clean setting with compression. It also
has echo and chorus, (either or both or none- the Rockman is
"both or none"). It also has effects loop, stereo inputs
1/4" (you can have both guitar and stereo come thru
headphones at the same time), and slap type echo.
By the way, it does have distortion and overdrive.
Oh yeah, the power supply comes with it! It costs about $220,
which is less than the Deluxe Rockman- sans transformer.
It also comes in 19" rack-mount form.
--
+-----------------------------------------------------------------+
| Steve | "Whoever he is, he sure |
| [email protected] | talks gloomy." |
+-----------------------------------------------------------------+
|
| 603.43 | A Kingdom For A Volume Knob | AQUA::ROST | Marshall rules but Fender controls | Tue Jan 10 1989 08:38 | 15 |
|
The only thing I would add is that the rack version seems to be
in *very* short supply (I've seen all of one and the dealer wouldn't
sell it as he said he couldn't get anymore for awhile!!!).
If the little one sounds *as good or better* than Rockman and has
a *volume control* I'd say buy it.
I have a Y-word headphone amp of similar vintage to the original
Rockman and while it doesn't have that creamy Scholz signal processing,
it *does* have volume and tone controls for the guitar *and* volumes
for the (three!!!) aux inputs plus a headphone level control, all of
which I really couldn't live without.
P.S. does that $239 price include the AC adaptor?
|
| 603.44 | Zero Volume From A Morley?? | AQUA::ROST | Marshall rules but Fender controls | Tue Jan 10 1989 08:43 | 9 |
|
Re: Morley pedals
Just a sanity check on Morley volume pedals. I got one second hand
a while back and it sounds OK but when the pedal is backed off all
the way I still have *some* output. Is this normal? I'd rather
have it kill the signal entirely...
|
| 603.45 | adaptations | SUDAMA::SUDAMA | Living is easy with eyes closed... | Tue Jan 10 1989 17:16 | 23 |
| re: .43
> The only thing I would add is that the rack version seems to be
> in *very* short supply (I've seen all of one and the dealer wouldn't
> sell it as he said he couldn't get anymore for awhile!!!).
This was at Mr. C's in Marlboro. They claimed to have one of the
rack mount units, although I didn't look at it.
> If the little one sounds *as good or better* than Rockman and has
> a *volume control* I'd say buy it.
"As good or better" can be pretty subjective, but at least it has
three fixed settings with different eq's for clean sounds, one for
overdrive and one for distortion, as well as variable levels on delay,
chorus, gain, compression and output.
> P.S. does that $239 price include the AC adaptor?
Yes, *and* a pair of headphones ;')
- Ram
|
| 603.46 | Morley should allow zero volume | CSC32::G_HOUSE | Two men enter, one man leaves | Wed Jan 11 1989 11:34 | 8 |
| re: .44 Morley volume pedals
I have one and it doesn't allow any signal through when it's backed
off completely. It's opto-electrically controlled though, so a
low battery (or power supply) MIGHT cause that. It's just a thought,
I really don't know much about the circuit.
Greg
|
| 603.47 | | AQUA::ROST | DWI,favorite pastime of the average guy | Fri Apr 21 1989 09:29 | 9 |
|
Re: .44 and .46
I opened up my pedal and added an extra cardboard "hood" around the
photocell which provided better blocking than what was already there,
so that when the pedal is backed off, the cell is totally shielded from
the light bulb. Now the volume effect works great.
|
| 603.48 | Whops! | CSC32::G_HOUSE | six feet from the rest of your life | Fri Apr 21 1989 15:48 | 8 |
| Ah yes! I went and tested mine again to be sure after I wrote that
note and when I cranked the amp WAY up, sure enough, there was some
bleed through. Sorry about that, I was wrong!
Perhaps I'll investigate the cardboard hood idea, sounds like a
good thing to do.
Greg
|
| 603.49 | DE-200? | GOES11::G_HOUSE | I claim, therefore I am! | Thu Feb 07 1991 16:44 | 11 |
| Does anyone have any opinions on the old Boss DE-200 digital delay?
It's a one slot rack mount unit with up to about 1200ms delay. I have
one on a trial basis and I like the sound pretty well, but..well..ok,
the thing *looks* kind of cheezy. The knobs are real plastic looking
with little different colored ends (right off their stomp boxes!).
Questions: Does anyone have any opinions on this unit? What would you
consider one to be worth?
Thanks,
Greg
|