Hi, Y'all!? Been a while since I bugged the collective so now I have a question.? It's not Hallicrafters related but there is such a wealth of knowledge around here I figure somebody might be able to help.
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I picked up an old Lafayette HB-600 CB which is ailing.? I turn it on and get a slight hiss from the speaker and when I key the mic I show about a 5 watt carrier but no modulation.? That's just a little background info so here is where things might get interesting.? I decided to go through the alignment procedures and have injected 455 KHz at the proper point and heard exactly zero tone so I started working forward and after I got past a mechanical 455 KHz filter and an IF can I got a good solid tone and could peak the next two IF cans.? I have a stock of mini 455 IF transformers and I have ordered a ceramic 455 KHz filter from an AliExpress seller.? should the ceramic filter work as a drop in or might I need to do some modifications?
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I know some may look at messing with an old CB as tantamount to blasphemy but CBs and SWL is what got me into Ham Radio when I was a wee shaver.
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73,
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Justin B.
KI5GKD
