[sdiy] MFOS quantizer

[Dan Snazelle]

i had some trouble getting this board working initially...but it was all due to my own user error. i had to really go back over and check for shorts, etc.

it is a great module. i use it all the time with no trouble.

good luck



--------------------------------------------
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> Date: Thu, 8 Jan 2009 12:02:07 +0100
> From: louis at dompselaar.org
> To: synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] MFOS quantizer
>
> I completed the PCB but hadn't tested it as yet. But just to try,
> I powered the otherwise unconnected board with 15V just now. It doesn't
> run hot at all. Chips running hot are usually a sign of power
> reversal, so either you have -15V and 15V reversed (or swapped with GND),
> or the TL074s are the wrong way around. Assuming you're using Ray's
> PCB, little else can cause them to glow...
>
> Louis
>
>
>> I just built 2 MFOS quantizers at the same time and they both do not
>> work. When I plug them in the TL074 IC gets hot. It's the same on both.
>> I feel like since they are both malfunctioning in the same way I should
>> be able to figure out what is wrong, but I just can't find anything.
>> There are no shorts on the board and I'm using the exact specified ICs
>> (not low voltage ones). I'm powering the board with 15volts (instead of
>> Ray's standard 12volts), but according to the schematics, that shouldn't
>> be a problem. I'm using 1N4148 diodes instead of 1N914 but I can't
>> imagine why that would make any difference.
>> Have other people had problems with this circuit??
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