SV: Re: [sdiy] Buchla 100 oscillator - bad ua726?

karl dalen dalenkarl at yahoo.se
Wed Nov 8 02:09:37 CET 2006


Another idea is to measure the ovens current consumption
and if that fluctuates the slightest then the VCO will go out of tune.
Resistor on pin6

What about the oscilator ballance pot? If its crackling
it would affectsymetry and to much crackle the osc will detune!

Dentist indeed! 

KD

--- Paul Perry <pfperry at melbpc.org.au> skrev:

> Since the function of the ua726 is to regulate its own
> temperature (and thus the temp of the transistors in it)
> maybe you could try putting you finger on it (to heat 
> it up or down) and seeing if anything changes.
> A lot of electronic diagnostics is like dentists, just
> prod and probe until the scream.
> 
> paul pery melbourne australia
> 



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