VintageKustom.com: Replacement Part Suggestions

Re: Schematic [message #27224 is a reply to message #27223]

Thu, 21 March 2019 18:34

JDinPA17603
Messages: 69
Registered: May 2018
Location: Lancaster, PA

Member

[My comments added in line.
quote title=stevem wrote on Thu, 21 March 2019 07:55]JDpinPA17603 the schematics you need are in the 200 A section other then the power supply section with the terrible circuit breakers! Got them.

In the A amps you can not apply the B units thermal circuit breaker because the output Transistors are really too far apart, but you can internally bolt on heat sinks to the rear wall panel to cool them faster. Can do.

Every 20 degree drop in temp will double the life of a semiconductor, so even doing something like placing a small personal type fan blowing on the rear of the amp is worth it. Did not realize it was that much of a factor.

The best thing you can do since circuit breakers are so slow to react is to clip them out and install inline fuse holder and then fuses of the same rating. <grin>

Another thing all Kustoms Cam use to help protect and stabilize the output stage is a Zobel network added to the output stage.
This consists of about 5 bucks in parts to make it up and 15 minutes to install it [/quote] I will investigate these. Do you have a recommended set of values for use asa guitar amp? Would the amp used for bass require different values.
?
Thanks again Steve for your help and information.

John

Old Us Navy Vietnam Vet
Playing for my own enjoyment and irritation of the neighbors.

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