Help! Kwak Clock - Partial adoption

[stefanobilliani]

The KC was working till I added in the 5.9V regulator for the AD8561 and change a few resistors.

Thanks
SW

Probably the comparator AD8561 is KO. 5.9volts are too much without current limiting

IMHO by the way...

 

[Jocko Homo]

Well, there's your clue......

So, does the oscillator still oscillate if you disconnect the cap to the comparator???

Jocko

 

[overmind]

Re: Well, there's your clue......

So, does the oscillator still oscillate if you disconnect the cap to the comparator???

Jocko

I have isolated the ocillator circuit. I disconnected the +V2 - 5.9V regulator circuit, disconnected the link between the SOURCE of the JFet and the input of AD8561. The active circuit is the +V1 - 5V circuit and the oscillator circuit. I cannot detect any meaningful waveform with an oscilloscope.

Regards,
SW