Cgs synth

Wrong transistors! We are talking about the 3x BC548 that drive the matched
dual transistor.

>Those in the 4 VCAs that have matched trannies (2 I believe and SSM2210s in
>the other 2. 2 more to build.) ... were matched using the ancient Minimoog
>technique.
>For Ian's matching method I DO have a 5 1/2 digit high end bench meter.
>I'm ok there and will be using that method for the next 2, even though my
>latest shipment of 2N3904s are all from the same batch.
>Once it's wired - go through the CV eliminating procedure and all should be
>fine. :)
>
>
>On Wed, Dec 19, 2012 at 10:50 PM, adematteo <adematteo@...> wrote:
>
>> **
>>
>>
>> Thanks Ken, i haven't actually wired it up yet but just noticed the note
>> after reading over your page tonight.I'll wire it up and see how it
>> sounds.Thanks,Tony
>>
>>
>> --- In cgs_synth@yahoogroups.com, sasami@... wrote:
>> >
>> > If it is working to your satisfaction, leave it alone. :) If the
>> transistors
>> > are from the same batch, chances are they match already.
>> > Ken
>> >
>> > >Hi guys,
>> > >I recently built up the vca3 boards and didn't realize until after the
>> fact
>> > that it's recommended to match the bc548's.
>> > >
>> > >The fact that it's mentioned on Kens page makes me wonder if i should
>> pull
>> > them and match them (ie. how critical is this ?) ?
>> > >
>> > >Which leads to my second question what are we measuring and how are we
>> > doing it ?
>> > >
>> > >I planned on building up Ian Frijtz's Transistor matching circuit for
>> the
>> > dual transistors on this and the vco boards so would i be able to use
>> this
>> > circuit to match the bc548's as well ?
>> > >
>> > >Thanks for any insight you guys can offer,
>> > >-Tony
>> > >
>> > >
>> > >
>> > >------------------------------------
>> > >
>> > >The CGS Modular Synth home page: http://www.cgs.synth.net/
>> > >Yahoo! Groups Links
>> > >
>> > >
>> > >
>> > >
>> > __________________________________________________________
>> > Ken Stone sasami@... otherunicorn@...
>>
>> > Modular Synth PCBs for sale <http://www.cgs.synth.net/>
>> > Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>> >
>>
>>
>>
>
>
>
>--
>Take care,
>Warmth and Peace,
>Rich
>
>http://www.damian.deathlehem.com/ - my modular synth
>http://www.soundcloud.com/Richarius - my latest composition snippets
>http://www.youtube.com/dolphinicus/ - various module videos of mine / etc.
>
>
>[Non-text portions of this message have been removed]
>
>
>
>------------------------------------
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>Yahoo! Groups Links
>
>
>
>

_______________________________________________________________________
Ken Stone sasami@... otherunicorn@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>