[Test-Equipment] CON-AVIONICS Power Supply

[Glenn Little WB4UIV]

I recently obtained a Con-Avionics HT26-4.4 Power Supply. From the model 
number I guess this to be a 26VDC 4.4 Amp power supply. This was made in 
late 1965 from the date codes on the parts. Con-Avionics appears to no 
longer be in business.

Would anyone have a Con-Avionics linear power supply schematic that they 
are willing to share? It does not have to be for this particular unit as I 
would guess that the regulator would be similar on all of their units of 
that vintage.

This supply has been repaired/modified by someone with less than stellar 
skills. I would like to return it to operating condition.

The pass transistors are marked P4716 with another power transistor marked 
P5034. There are capacitors marked P5051 and P5047. It appears that they 
did not include the value of the parts on the part when the part had the 
Con-Avionics part number on it. The transformer is part number P5060. The 
regulator board has transistors marked P3923 and P4069 on it. Google was no 
help with these numbers.

Any help with identifying the standard part numbers for the transistors and 
with a schematic would be greatly appreciated. The supply is compact for 
its age and ratings. I would like to return it to service.

Thanks
73
Glenn
WB4UIV