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Re: SX-62 FM respons

 

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Scott and others
I am sticking with my first guess for now --two peaks on the IF [ If response is not flat enough]? .. but I have no conviction on that.
i agree that SMD, even if it is possible in the 62? seems to be a remote possibility
I just ran across a? somewhat similar posting on some other? group? and? i would guess from that, it is hard to rule out repeaters until they are checked out in that area.?
-- now i just saw a new email from Joe? and after a few moments of thought, it could be that old caps change value a bit and UNTUNE the IF¡¯s rather than fail shorted .. but that is still just one possibility. ?

73,, don?? VA3DRL

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From: [email protected] [mailto:[email protected]] On Behalf Of Scott Petersen
Sent: Friday, November 4, 2022 3:02 PM
To: [email protected]
Subject: Re: [HallicraftersRadios] SX-62 FM respons

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I don't believe SMD affects the SX-62 or SX-71, as they have the larger IF transformers that came before the miniature transformers with the Mica caps built in the base.

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From: [email protected] <[email protected]> on behalf of don Root <drootofallevil@...>
Sent: Friday, November 4, 2022 2:31 PM
To: [email protected] <[email protected]>
Subject: Re: [HallicraftersRadios] SX-62 FM respons

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Joe; i guess you are speaking of SMD [silver mica disease] that apparently seems to make them erratic and then die shorted out and is common in many 455 kH IF transformers for AM etc.? The original posting mentioned only the one station and that it came in at two frequencies, so we don't have much to go on.
73 DON ? VA3DRL

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