Headphone adapter project for Bottlehead amps

Just made this and it works as a great hum pot adjustment tool!  I used the Switchcraft 1/4" adapter.

I plugged into my Stereomour and thought hmmm....hums a bit - needs shielding.  Then realized that the hum pots were probably off.  Small adjustments on the hum pots as I listened with volume at 0 and dialed them right in.  Hum gone.

Very nice!

I was worried about the wires breaking off at the banana's.  That's pretty small wire held down with a screw.  As strain relief I just filled in the holes with hot glue.  I know this makes it a one-off but for the cost of the banana's - not an issue. 
 
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