"Gareth Magennis" said:
what is the purpose of the reverse biased diodes on the OPT/Cathodes as in
this Fender circuit?
http://www.schematicheaven.com/fende...er_60_rack.pdf
I need to replace a faulty one and am having difficulty sourcing the part
Fender use (R3000). Does this need to be a specific type of diode or can I
make up the 3kV diode required using standard 1Kv rectifier types?
I use UF4007 or UF5408 diodes for that purpose, 3 in series.
Don't use 1N4007 or 1N5408, they're too slow for this application.
The reason why they are there is already explained by Phil Allison.
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- Maggies are an addiction for life. -