[sdiy] VCO works without timing cap

[Tom Wiltshire]

Fairly normal, in as much as I’ve seen the same thing. It doesn’t seem to *need* an external cap.

It’s designed to oscillate. Unless you try hard, it’ll oscillate. The trick is getting it to oscillate where and when and how you want!! That’s what the timing cap is for…;)

Tom

==================
       Electric Druid
Synth & Stompbox DIY
==================

> On 22 Jan 2020, at 20:57, ColinMuirDorward <colindorward at gmail.com> wrote:
> 
> I built some of my 3340 VCOs and forgot to install the 1nf timing capacitor. Disturbingly, they seem to work nevertheless, albeit at a higher pitch.
> Is this normal, or does it mean I've done a bad layout with loads of stray capacitance?
> Thanks,
> Colin
> 
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