[sdiy] Another CV breakthrough question

[Tony Allgood]

Hi Colin and all,

>The transistors in my TB303 ladder are 2SC1815, but the service manual
and schematics don't mention this.

I have used BC549s in my TB3030, and I have never come up against any CV
breakthrough. But this is probably because modern BC549s are indeed more
closely matched than the tatty little 2SC945s on my SH2000. However, the
TB303 does not really stretch the filter that much, so perhaps over the
limited range it operates over, breakthrough is tolerable.

Regards,

Tony Allgood  Penrith, Cumbria, England

Oakley Modular Synth and TB3030:
www.techrepairs.freeserve.co.uk/projects.htm
My music: www.mp3.com/taklamakan