[hffenninger]

Is the hum constant level or does it change across the dial?

Was the humbucker in the speaker ever touched? Is it present?

Were all tubes checked for shorts, especially HK ones?

Is the GND good throughout the chassis?

Last thing, a little hum might be normal.

Last thing, some

Thank you for the reply,
The hum is constant not affected by volume or tuning. All tubes TV7 tested good or better. I would love to know how to thoroughly check chassis grounds.

FF