[TMC] Replacement Screen Overload Circuit Breaker for TMC PS-4A Power Supply Needed

[triodes at optonline.net]

I was making really good progress on finishing up my TMC PAL-1K 1KW 
Amplifier System, when the rig suffered a serious failure/fault.
The PL-172 PA tube apparently arced over internally, and in the process 
destroyed the screen overload circuit breaker.
The TMC part number for this circuit breaker is SW-262, and this is a 
component part of the PS-4A Low-Voltage Power Supply, which is a part of 
the PAL-1K Amplifier Subsystem.
I know this is a long shot, but if anyone has this circuit breaker from 
a donor PS-4A, or as a spare part, I would be forever grateful.
By the same token, I am open to purchasing a complete PS-4A power 
supply, if anyone has this unit available.
Any help from my fellow TMC enthusiasts would be very much appreciated.
Thanks & 73,
Bruce, W2XR