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Old 23rd Sep 2019, 3:47 pm   #4
Join Date: Nov 2016
Location: Budapest, Hungary
Posts: 348
Default Re: Vintage Radio and Phonograph cutter schematic

Originally Posted by ms660 View Post
The only line capacitor I can see is the 0.01uF that's connected from the mains AC line to ground/chassis, if you replace that one you should replace it with a Y Class type.

The Candohm resistor is 4.5 ohms wire wound, so far as I can make out it's a dummy load for the output stage when the loudspeaker is disconnected, probably mounted on the chassis, you can replace it with a similar value wire wound resistor rated at 10 watts.
Thank you so much Lawrence ! I can not wait to start working on this

Originally Posted by Herald1360 View Post
The only capacitors in any signal path are marked up as RF or AF in the pic attached.

The 8uF 450V is simply an HT decoupling electrolytic type. All of the other ringed capacitors look to be decouplers of one sort or another.
Thank you for the clarification. Will use a generic electrolytic caps then...

Many many thanks for marking the signal caps out, really appreciate it.

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