[sdiy] adding sync to a vco/how does sync work

[Florian Anwander]

Hi Dan


> for instance, the FARM VCO I doesnt have sync (i dont see it at least) how hard would it be to stick it in somewhere?
> 
> http://www.aleph.co.jp/~takeda/radio/img/farmVCO-scheme.gif
If I understand it right (others may correct me): in this schemoe you 
should double Q1 and feed the sync signal to the base of the second 
transistor.

Florian