[HAM] Motor controllers in the new Leslies

[Harold]

From: "Michael Lewis"

> has
> anyone had any issues with the newer HS Leslies and bad or flaky motor
> controller boards?

I have a 122A. I experienced some speed control problems. It turned out that 
they were partly due to a failure of the relay (in the 122A amp) and I had 
probably severed a solder connection on a motor board at sometime in 
plugging or unplugging it.

You imply that you would suspect board problems to develop- actually the 
conventional relay went bad as they sometimes do.

I shipped the amp and large circuit board, and motor relay boards to Smith 
Music, I think at Anderson Indiana. In addittion to the trouble shoot, They 
upgraded the power supply by doing a few changes so that it now has the 
current same potential as current 122A's, more similar to the power (to the 
plate supply) provided by the amps with the OC3 tube.

I was concerened that the main board was bad, but it was not.

Between changing the bass speaker to current model and the above upgrade, I 
would say the speaker sound quality has been improved from the original.

Jim Brown of JB Organ at Stoughton, WI had a new B3 in his salesroom hooked 
to a 122 and a 122XB. He stated he liked the 122XB slightly better!

Harold