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Old 6th Nov 2018, 7:27 pm   #13
SiriusHardware
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Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 11,482
Default Re: ZN414 and TA7642 radios

Quote:
Originally Posted by Karen O View Post
I built an HF radio by using a 455kHz IF transformer as the tuned circuit of a ZN414. The link winding was driven by a FET frequency changer.
The idea of using a ZN414 as an I.F. stage for a superhet receiver was explored in F. G. Rayer's book 'How To Make Walkie Talkies' (Babani BP43, 1977).
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