Has member Evil79's ampeg ba115 defect been resolved? May I know what was the solution?
Ad Widget
Collapse
Announcement
Collapse
No announcement yet.
Ampeg BA115 very loud humming sound
Collapse
X
-
Originally posted by Jazz P Bass View PostAmpeg BA115 Schematic
Your output section is blown again.
When those mosfets go they really stress the rest of the section.
Here is what I would recommend.
Check & replace any shorted output mosfets.
Replace the zener diodes & the 47 ohm resistors on the output gates.
Replace the drivers MJE340 & 350
Replace the bias transistor Q3.
Check all of the resistors around thses parts.When the going gets weird... The weird turn pro!
Comment
Comment