Drip Opto 2 Manual

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Jim50hertz said:
Trying to reduce some hum in a Drip Opto 2 and am looking for the build manual for this revision.

Anyone have it??

Right so,

It’s v4 I have, not v2.

Anyone got one?  I know this is reaching back ten years
 
Manual

https://web.archive.org/web/20131022205621/http://dripelectronics.com/sitedocs/opto4_manual.pdf

BOM

https://web.archive.org/web/20131022205621/http://dripelectronics.com/sitedocs/la2abom2010.pdf

Some other older Drip stuff

https://web.archive.org/web/20131022205621/http://dripelectronics.com/index.php?option=com_content&view=article&id=30&Itemid=57
 
Thanks so much you guys!  Great to have that info.

Tracked down the hum, turned out my painted front panel had no connection to ground, causing nice big buzz when turning up the gain pot.

Got a Mullard 12ax7 and a Brimar 12bh7 in there and I reckon it sounds pretty sweet and is as quiet as these things get.
 

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