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::::::UPDATE::::::UPDATE::::::: I removed the OT in question a few days ago and pulled it apart. I found 2 wires sliced and shorting to the casing. With the new OT on the way from Allen, I think this repair is in overdrive.

Monsta, I removed the OT last night and discovered 2 wires were sliced and shorting to the case. I'm sure this is the major problem. I ordered one up From David Allan this morning. My customer agreed that a cap job is in order as well. Once all this is complete, I'll let you know. Thanks again...

Great advice... thank you. Gary

Maybe someone else can chime in but my friend, who plays mostly blues, has a plethora of amps and his go-to amp is his .50 caliber + combo 1x12. Figure too though, if you need to push a lot of air through your speakers you'll need to consider a more powerful rig, or mic into a good PA.

I wouldn't have even considered the OT but it came to me dangling by the wires. Do you think I need to remove the board or can I replace the caps from the top? I'm not used to seeing this kind of board where there is a bead of solder on both sides. thanks,

Thanks for the push Monsta. It's one of those...should I, or shouldn't I situations. I'm not gonna fix it till I eliminate the OT as a potential problem. the other thing is the electrolytic caps are from 1990 (original) and should be replaced as well. This amp needs plenty of work. thanks again,

Depending on how you dial up the settings. I've heard great reviews for all styles. http://www.manualnguide.com/dl/3454/ check out the manual

I'm still in the position of weather or not the OT is bad or not. I did notice a slight discoloration on the board around R261. I guess I just need to bite the bullet and order in a new OT. I've had 4 repairs come through and still this Boogie sits waiting to be fixed. Can someone explain to me...

Thanks for the reply. Greatly appreciated.

Does anyone have a .50 caliber plus and can tell me if they have the same solder patch on top of the board like you see in this picture. I can't tell if it's intentional or perhaps it melted from over heating. It involves C11. thanks Gary

The curious side of me wants to remove the bad OT and disassemble it and see what's up in there. I've repaired a few analog meters in the past because I needed to know if I could. I'm figuring if a tab is cracked or broken I may be able to do something with it. An open winding would be a...

WoW that sure looks like a perfect match for what I have. Thanks for the lead, and the price is on the money. Gary

Has 2 mounting tabs total. 4/8 ohm. hole spacing 3 1/8 2 1/2 x 2 3/4 wide , 2 7/8" tall

The amp came in for repair with the OT dangling from one tab. I built a bracket around it and secured it to the chassis. The signal is very weak, hardly audible with the volume knobs turned up to 10. At one point it did suddenly kick in with plenty of static to boot. The 60 cycle hum was too...

Thanks for the lead Stomper. I just shot them an email. They do look pricey. Gary

Does anyone know who makes an output transformer for a 1990 .50 Caliber +, 1x12 combo? any leads would be greatly appreciated. Gary