On Wed, 8 Apr 2009 12:46:00 +0100, "N_Cook" put
finger to keyboard and composed:

Firstly could someone confirm it is a CuO rectifier
http://home.graffiti.net/diverse:gra...et/CuO_rec.jpg
steel bolt mount is horizontal,
from a mid 30s Avo, "Mark 1" valve/tube tester, discs about 3/4 inch
diameter, gives only about 4V dc.

See http://www.xcvcorp.com/PIC00035.jpg

.... and ...

http://www.xcvcorp.com/PIC00039.jpg

.... at ...

http://www.xcvcorp.com/Electronics%20Museum%20HTML.html

Assuming functional replacement with a 1N4007, what value of sag resistor?
Is the functional part just the 6 central discs and the outer discs are just
insulators/strain relief, they seem a bit more than that ?

- Franc Zabkar
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