[Heathkit] SB-610 Diode Replacements ?

carl lowry l_carlj at bellsouth.net
Thu Dec 28 20:02:09 EST 2006


Good Evening,

When rebuilding the SB-610s, I have been replacing the two old Selenium Rectifiers
with two strings each of the 1N4007G-B  Diodes which are Vr/1000 Io/1A 
as desginated by Mouser Electronics  under their part number 583-1N4007G-B.

Now i have come across couple bad diodes in the the power supply section
coming off the power transformer that are identified as D1, D2, D3, & D4 in the schematic.
Appears the voltage is 215VAC off the transformer winding but either 500 or 600 vac/s
on the other side of the diodes D3 & D4.

Any problems in replacing all four  D1 to D4 diodes with the same 1N4007 diodes
or would you go higher voltage  & if so....;.. suggestions please ?

Thanks & have a Happy New Years.
73s
Carl, k4zrd





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