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Old 12th Jul 2006, 12:45 am   #10
paulsherwin
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Join Date: Jun 2003
Location: Oxford, UK
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Default Re: Regarding home made TRF

Quote:
Originally Posted by JHGibson
It is better to have the volume control on the input of the first amp to prevent a really strong signal overloading this stage.
This is how it's normally done, but it does mean any noise in the audio preamp goes straight to the output valve.

You should be able to steal all the info you need for the two stage audio amp from a typical radio circuit of the 40s and 50s.

The 6V6 isn't a high slope valve and you will get more output if you sub a European type like an EL33. Unfortunately these are now fairly rare and cost a lot more than a 6V6

Best regards, Paul
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