kwak clock troubles

[strogg]

hello,
hopefully this should be straightforward. basically, this is what happens on the oscilloscope test after the build:

with ±12v on the rails...
> 1 amp drawn, and i get a regular sine wave
with ±9v on the rails
just a bit under one amp drawn, and still sine waves on the oscilloscope

the voltage on comparator chip is 4.8v the whole time, and messing with the pot doesn't do anything. and after a while, the power caps will get a bit toasty.... well, makes sense considering it's drawing a ton of power.

*sigh*

so can anyone help? thanks

[Elso Kwak]

HI
1A current are you powering a power amp or a clock? Hell ho!
I guess your caps are the wrong way in or just defective.
The KWAK-CLOCK draws very little current say 10mA + or so and even less in the negative rail. Are ur inductors hot too? I am hot too, and cool[joke]
Pls check for correct output of regulators +/-5V before fitting the comparator.

[jean-paul]

Maybe it is oscillating ?

[strogg]

well, the caps are in the right way

i dont' know if the inductors get hot, but i can give it a shot tomorrow (i can't get into the school lab today, and i don't have a ±9v psu on me)

[Bricolo]

maybe you wired someting backwards in the power supply (tl431 or transistor)

if you made a pcb, posting the layout here as a picture could help