DOD - FX52 Classic Fuzz

DiscoFreq · Post by **DiscoFreq** » 10 Sep 2009, 19:35

Can someone tell me if this is correct?

I received a mail with comments about this schematic:

There is a fatal flaw in the FX-52 schematic. Shown where the external
power supply comes in is a cap and a diode. That should be a Zener diode
and with a resistor in series with it. A regular diode would clamp you down
to 0.6 volts.

If he's right I need a corrected version of that drawing

WhiteKeyHole · Post by **WhiteKeyHole** » 10 Sep 2009, 19:50

Incorrect.

DiscoFreq · Post by **DiscoFreq** » 10 Sep 2009, 20:36

WhiteKeyHole wrote:Incorrect.

The schematic or what he says?

WhiteKeyHole · Post by **WhiteKeyHole** » 10 Sep 2009, 20:45

What he says.

soulsonic · Post by **soulsonic** » 11 Sep 2009, 06:46

I have an FX52, I can verify the schematic sometime if it's needed.

DiscoFreq · Post by **DiscoFreq** » 11 Sep 2009, 08:47

soulsonic wrote:I have an FX52, I can verify the schematic sometime if it's needed.

A verification of the parts at the power supply input would be great

Dirk_Hendrik · Post by **Dirk_Hendrik** » 11 Sep 2009, 10:19

In a quick scan I don't see any problem in this configuration. The remark as posted suggests someone who smelled the coffee but does'nt know how to make it.

This reverse protection seems pretty standard.

DiscoFreq · Post by **DiscoFreq** » 11 Sep 2009, 11:17

Thanks!

He also contacted me again:

My mistake that diode is a reverse polarity protector.

So I'll just keep that schematic. But it seems to be good to verify such remarks in the future

Thanks guys!

DOD - FX52 Classic Fuzz [schematic]