Again, sorry about that. I just looked at the schematic and saw that
they're NPN's. I'll have to pull VCAs out and see which tranny that it
WERE that I had matched. I remember that the trannies were on tape, that I
was matching from ... I'll pull them out and check the part #. Whichever
it were ... they've been working fine for years. :)
On Thu, Dec 20, 2012 at 9:18 AM, Richarius Molindarius <
richmolindarius@...> wrote:
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]
they're NPN's. I'll have to pull VCAs out and see which tranny that it
WERE that I had matched. I remember that the trannies were on tape, that I
was matching from ... I'll pull them out and check the part #. Whichever
it were ... they've been working fine for years. :)
On Thu, Dec 20, 2012 at 9:18 AM, Richarius Molindarius <
richmolindarius@...> wrote:
> Wha'? Who? Whoa ... did I say that? :o Lol. Sorry about that Ken / etc.--
> It were 4 or 5 years ago that I built those 4. Maybe it were the 2N3906's
> that I matched that way then. I'll have to check.
>
>
> On Thu, Dec 20, 2012 at 5:21 AM, <sasami@...> wrote:
>
>> **
>>
>>
>> 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/>
>>
>>
>>
>
>
>
> --
> 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.
>
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]