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In Reply to: RE: Help sought for Sherwood receiver posted by Eli Duttman on April 16, 2015 at 18:03:51
Heres a photo of diodes, all disconnected from capacitor end:
Follow Ups:
Those old diodes are not especially big. 3 A. rated parts should be fine. At 1000 PIV, the UF5408 is overkill for this job, but because of economies of scale they tend to be the lowest priced 3 A. rated UFnnnn parts.
UFnnnn parts are so much quieter than the similar rated 1Nnnnn parts that putting them in, even if the old diodes are intact, represents a nice upgrade. The background gets "blacker".
If you have doc. for the receiver that includes a schematic, please scan the schematic and upload it.
Eli D.
Partial scan of schematic:
Happily, a bipolar PSU is present. Please observe that 26 V. peak is 18.4 VRMS. As power = V 2 /R, the max. possible power yield into 8 ohms is 42.5 W. In the real world you get less .
Put new 'lytics and new diodes in and pray your O/P transistors are OK.
Eli D.
nt
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