Heathkit IT-17 -- Need Parts--Help

[Ron]

tlee wrote:
> Does anybody have an extra 57-27 rectifier for the IT-17 tube tester or
 > is there a replacement for it??  It looks like an old selenium type and
 > I am not sure I can replace it with a modern silicon diode(s)??  Can
 > anybody give me  some info on this.  Any help appreciated   THanks
 > Ted N8GPQ

In general, you can replace selenium rectifiers with silicon rectifiers.
Voltage and current ratings should be about twice, but that's easy to meet.

-- Ron

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