UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Mike Brett · 19th Jul 2008, 10:01 pm

Hello all
I have built a 80 meter superhet from various modules mainly from Radcom and homebrew circuits using modern components. It all works very well apart from a problem of low gain from the IF amps, so I have to use a signal booster on the antenna input. My best efforts have failed to resolve the problem so I am looking to replace the IF amp and product detector boards and also the AGC board.Does anybody know of a reliable circuit or even a kit that I could use. I have a IF frequency of 11.000 MHz, and the receiver runs on 12 volts DC.
Many thanks Mike

19th Jul 2008, 10:01 pm	#1
Mike Brett Retired Dormant Member Join Date: Dec 2005 Location: Wisbech, Cambridgeshire, UK. Posts: 452	80 meter superhet Hello all I have built a 80 meter superhet from various modules mainly from Radcom and homebrew circuits using modern components. It all works very well apart from a problem of low gain from the IF amps, so I have to use a signal booster on the antenna input. My best efforts have failed to resolve the problem so I am looking to replace the IF amp and product detector boards and also the AGC board.Does anybody know of a reliable circuit or even a kit that I could use. I have a IF frequency of 11.000 MHz, and the receiver runs on 12 volts DC. Many thanks Mike