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Old 6th Nov 2018, 2:31 pm   #6
Jolly 7
Octode
 
Join Date: Feb 2018
Location: Southampton, Hampshire, UK.
Posts: 1,061
Default Re: ZN414 and TA7642 radios

I enjoy experimenting with the TA7642 . The third version I built works mostly fine where I live in the Southampton area. I can tune in from 531 kHz to 1557 kHz, but no further down than that. In London the reception was good in West Drayton, but poor in Southall due to a local transmitter signal being 'smeared' across a large portion of the dial.

I used a 4 inch ferrite rod and MW coil from an old radio to get the best results and a good quality polyvaricon tuning cap.
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