[sdiy] VC-ADSR schemos

[Martin Czech]

IMHO:

I guess pnp/npn: 3096, but it's no bargain, expensive.  hfe also crappy...
Japanese duals wouldn't save much , also.  These arrays are often for
switching purposes, analog performance seems not to be the design goal #1.

Ahh, and they have substrate leakage, too.

3 TO92 can fit inot the space of one 16DIL or was it DIP?
So area ratio is 5/3, not quite a saver.
If you build so high density boards, how will you repair them, or
how will you fix them in the case of an error?

Perhaps SMD could be a solution for you: 

-small
-if you use the right "glue" relatively easy to solder
-if you have the right solder "tip" good to repair
-no substrate effects
-higher hfe
-matching possible
-Siemens current mirrors available (Farnell)

m.c.

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:::Date: Tue, 27 Feb 2001 17:43:33 +0000
:::From: jbv <jbv.silences at wanadoo.fr>
:::To: "synth-diy at node12b53.a2000.nl" <synth-diy at node12b53.a2000.nl>
:::Subject: Re: [sdiy] VC-ADSR schemos
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:::
:::
:::
:::Hi folks,
:::
:::Regarding JH's excellent VC-HADSR schemo,
:::I was wondering if there was any transistor array
:::IC that could replace the BC500C and BC560C...
:::The obvious purpose is to save PCB room...
:::
:::Thanks.
:::
:::JB
:::
:::
:::