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Old 6th December 2003, 03:01 PM   #21
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Join Date: Jun 2002
Location: Italy
Originally posted by overmind

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

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

IMHO by the way...

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Old 6th December 2003, 06:56 PM   #22
Join Date: Feb 2002
Location: As far from the NOSsers as possible
Default Well, there's your clue......

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

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Old 7th December 2003, 01:25 AM   #23
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Location: Singapore
Default Re: Well, there's your clue......

Originally posted by Jocko Homo
So, does the oscillator still oscillate if you disconnect the cap to the comparator???

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.

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