[Milsurplus] TCK power supply...

[Kenneth G. Gordon]

I have two very nice transformers here which were removed from some Motorola high-band 
transmitter or amplifier.

They are potted, very heavy, square jobs with ceramic posts to connect to. They have dual 
115 VAC primaries, and a center-tapped secondary rated at 2500 VAC at 450 mA. 
continuous duty. According to the data printed on the transformers, their insulation has been 
tested to 4KV, but there is also a warning printed on them stating that their outputs should 
not be run at more than 1800 VDC to ground. 

I find this last "interesting" and can't quite figure out why this is there.

So, after doing some thinking about this last night, I thought that if I used a full-wave bridge 
rectifier on their outputs, I could reduce the primary voltage to 103 VAC (bucking 
transformer or Variac), which would limit the AC output to around 1600 VAC, which through 
the FWB, would supply up to 2250 VDC output from the diodes, which, if I am correct, puts 
the DC voltage at 450 VDC above the rated voltage to ground.

I think....

Anyone?

Ken W7EKB

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