[R-390] Ancient history BUT need the info to properly replace the seleniu...

Flowertime01 at wmconnect.com Flowertime01 at wmconnect.com
Wed Dec 27 15:12:46 EST 2006


Bob,

You just should not eat them when you get them out of the circuit.

The real hazard is when they are letting the magic smoke out of them.

You can wash the area up with soap and water after one fails.
This cleans the mess up well.

As always when working with lead solder, wash your hands before you lick your 
fingers.

The device is a simple bridge rectifier.
A four lug terminal strip and a 1Amp 50 volt or more bridge will make up a 
replacement.

Mostly they just fail open then buzz a while as the output is only 1/2 wave 
instead of full wave. The extra load on the working half then kills that half 
and its over.

Some really do smoke and burn. These are the ones not to watch and breath the 
fumes from. The selenium is not easily adsorbed through the skin.

But a bath on the lawn is likely in order before you install the new part.

I like Hank's offer. It will look much nicer in the receiver.

Roger AI4NI



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