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AM loop antenna connections on Zenith MJ1035
I have a Zenith MJ-1035 radio that works well on FM--picks up many stations and sounds great; typical Zenith. However, I am experiencing a problem with the AM section. I get no reception whatsoever below 1100 kHz, but the reception is great from 1100 to 1600, especially at night. I presently have only one side of the AM loop antenna connected (the side that connects to the AM tuning capacitor), but am at a loss to figure out where the other side connects. My Sams for this set (set 751, folder 9) shows that side of the loop connected to ground through a blocking capacitor, but I'm leery of connecting anything directly to chassis ground due to the "hot chassis" nature of this radio. The AM worked great when I first got the radio about two weeks ago, but I've had the chassis in and out of the cabinet several times due to the tone control, on which the push-pull AC power switch is mounted, being very loose and the switch getting pushed in (to its off position) almost every time I put the chassis back in or, worse, when I put the knob on the tone control shaft when the chassis is in the cabinet. That's when I lost both connections to the AM loop. The radio works with just one side of the loop connected, but I'm sure it would work 100 times better if I could find out where the other (ground?) side of the antenna goes.
Thanks in advance.
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Jeff, WB8NHV
Collecting, restoring and enjoying vintage Zenith radios since 2002
Zenith. Gone, but not forgotten.
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