GrooveMerchant
Well-known member
Sounds promising- it will crackle a bit when it's powered up. If it persists, it's usually a sign that the battery isn't making good contact with the terminals. So either *gently* pry them back with a small screwdriver, or put little cardboard shim between the bottom of the battery and the cover, so that it gets fully inserted.
Thanks.
And as far as adjusting the trim pot, I'm assuming that clockwise decreases the amount of hum?