c26 diodes

intoaudio

Active Member
Does anybody happen to know the values of the 2 diodes on the power supply the schematic doesn't seem to list them. thanks
 
Back in the 50s,60s,70s, and even into the 80s McIntosh engineering found parts quality to be hit and miss and therefore would list parts they felt dealers should purchase from Mac parts. These parts would have gone through the typical Q/C process that Mac would apply for new production.

Non critical generic parts were expected to be purchased locally and most often the dealer already them in stock.

If you are asking about the ones I think you are they are just generic 1n400x diodes. The generic number should be printed on the part, my guess it is a 4004 but you should confirm.
 
I guessed wrong. They are on my schematic and the C26 on my bench has 1n4820 diodes in it.
 
The 1n4820 is 1.5 - 2 amp 400 volts, I have not checked what is in my c26. Would a 3 amp 200 volt diode work or is the voltage not high enough.
 
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