Tube Amps / Music Electronics
|For current discussions, please visit Music Electronics Forum.||The sunn still shines online!|
|previous: Craig 60Hz.
|1/22/2004 4:15 AM|
|Mike @ Vintage Amplifier Service||Re: Ampeg V4 w/6550s hums like crazy|
If the hum is 60 Hz,(like the hum you get
with an open guitar cable),then look for
a possible ground loop or an open ground.
Bad filter caps would give you 120 Hz.
Try jumping a 20@600v across the caps in
the amp and see if the hum changes. Also,
make sure any previous repairs have not
fallen apart. I spend a lot of time repairing
previous repairs. Sloppy mods are a constant
source of problems. Poor workmanship abounds.
(YOU KNOW WHO YOU ARE, SCHLOCKS). Mike
|Wild Bill "I spend a lot of time repairing pr... -- 1/22/2004 3:10 PM|