| Title: | You get surface noise in real life too |
| Notice: | Let's be conformist |
| Moderator: | GOVT02::BARKER |
| Created: | Thu Jul 28 1988 |
| Last Modified: | Mon Jun 02 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 550 |
| Total number of notes: | 3847 |
I'm looking for some parts to built a valve line-level preamp, it's a
circuit in the December ETI.. Not sure it'll be that good, but it
shouldn't cost much and looks fun to try.
I've not played with valves before and don't know sources for
components.
Can anyone suggest where to get a transformer with 220V 150mA and 6V 1A
secondaries?
Also, where's a good place to source valves (CV2493) and I need to know
what each pin on the valves correspond to. Jives - do I need to read
through the conversations you had in AUDIO?
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 387.1 | Transistor equivs | WOTVAX::MEAKINS | Clive Meakins | Sun Dec 06 1992 16:07 | 6 |
Thanks Jonathan for phone and mail advive re .0
Anyone got a transistor equivalents book to hand? I'm having trouble
finding TIP49 and 2N5058, are there sensible equivs? They're for the
hybrid preamp, the HT line is 300V.
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| 387.2 | Once learnt, never forgotten.... | BAHTAT::SALLITT | Dave @LZO 845-2374 | Tue Dec 08 1992 09:26 | 12 |
Clive,
The CV number is an old MoD designation, I don't if know valves are still
commonly known outside using this type of part number. Do you know the
"civvy" equivalent number? There should be one; for example, a CV4024
is also known as an ECC83 (double-triode).
I don't have all the equivalents in my head. It's just that after 16
years as a radar tecchie in the RAF my brain is still cluttered with
such things!
Dave
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