[sdiy] Vacum tube VCA

[John L Marshall]

Stack the triodes?

Take care,
John

Pacific Northwest Synth Meeting September 25, 2004
----- Original Message ----- 
From: "The Peasant" <ecircuit at telus.net>
To: "karl dalen" <dalenkarl at yahoo.se>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, February 02, 2005 6:25 AM
Subject: Re: [sdiy] Vacum tube VCA


>
> Quoting karl dalen <dalenkarl at yahoo.se>:
>
>> Hi!
>>
>> I have a new 6SL7GT sovtek tube and would like to use
>> it as a quality vca, gain cell, but at low voltages!
>>
>> Would it be possible to get this with this tube or
>> any tube for that matter?
>>
>> Whats your idea designing a low voltage gain cell
>> around tubes!
>
> Well, the 6SL7 is a dual triode, but normally a pentode is required for 
> VCAs,
> so I don't see how that could work. As far as low voltage use goes, I have
> never tried this, but I can't see any real advantage either.
>
> Take care,
> Doug
> ______________________
> The Electronic Peasant
>
> www.electronicpeasant.com
>
>