Need Ampeg BA115 schematics

[tlj]

Hi, I'm trying to bring my son's BA115 back on line. I found one of the finals was shorted and replaced the pair. In attempting to set the bias they blew again. It is pretty hard to find my way around without a schematic and parts layout drawing. Can anyone help? Thanks very much!

[Robert M. Martinelli]

Hi, and welcome to the forum!

Check this out :

http://music-electronics-forum.com/t...ghlight=BA-115

Hope this helps

Best regards

Bob

[Enzo]

That is the HP version. if one does a search of this forum for BA-115, about the fourth or fifth thread down has it posted in it.

[tlj]

Bob, Thanks, I did search and find this schematic. The problem is that the HP version has 4 output FETS and a dramatically different layout. It helped but I was hoping for the non HP version. Thanks again.

[Twist]

Check this one out.

[tlj]

Twist,

You have made my day! When I compare the high power design to the standard it is quite different, this will make the job easy. Thanks very much! Have a great weekend! tlj