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Hello again,
The reason I suggested trying out the amplifier was to help you find something
stimulating to pursue the project: the amplifier will work even if the radio section
is not fixed. As long as the function switch is set to phono or stereo, the radio
section is not powered (except for the tube heaters). If you have to set this
project aside for sometime, I would suggest that you do some reading on the
principles of superheterodyne receivers (that just means a receiver with a
local oscillator and demodulation at a fixed carrier frequency called the Intermediate
Frequency). Examples of useful books include any old edition of the ARRL handbook,
good old textbooks such as the one by Terman (Electronic and Radio Engineering),
etc. Bye for now.
P.S.: testing with the turntable and an old 78 is fine too!
Last edited by electroking; 05-25-2010 at 06:12 PM.
Reason: added note
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