[Milsurplus] BC-348 - finding the flaky band switch ?

GENE BALINSKI g.balinski at comcast.net
Mon Dec 24 22:36:56 EST 2018


Order and use DeOxIt D-100 in the needle applicator bottle. D-100 is 100%. D-5 is 5%.

Use it SPARINGLY. A small drop goes a lone way. Keep it off of the switch wafers.

Caig also sells lintless swabs and cleaning squares. I have used all of the above with good success.

GL es 73

Gene K1NR

> On December 24, 2018 at 10:14 PM John Hutchins <jphutch60bj at gmail.com mailto:jphutch60bj at gmail.com > wrote:
> 
> 
>     Gleaning suggestions -: BC-348 flaky band switch fixing.....
> 
>     BC-348R , OCR-T.O.-2112R2-3BC-112
> 
>     I know I have a flaky band switch on my BC-348 - [Band 5]  9.5 - 13.5Mc
>     ; If I fiddle the band switch this band comes alive with hiss... and is
>     still tuned u,p since WWV;  @ 10MC | still touches the needle Indicator
>     a bit on the high side.
> 
>     I have ordered Carig Deoxit Gold to clean  and protect the contacts:
> 
>     Are the band switch contacts, silver plated?
>        1. To Clean contacts : Should I try Deoxit D5 somthing stronger, before
> 
>     using Deoxit Gold  : reference: http://store.caig.com/s.nl/it.I/id.5/.f
> 
>         Deoxit D5,   Is it to strong for the contacts?   Any thoughts wold
>     be most helpful:
>        1. Will follow the instructions on Page 5-4 paragraphs 10, 11 to
> 
>     determine the offending sage;
> 
>     Any thoughts on procedures, got-U's,  wach-out's, wold be most helpful
>     on how the "clean" the switch contacts with out breaking things.   I
>     have 4 cans to investigate 1RF 2RF Det Osc    I suspect a loose switch
>     contact, Pincher,  as I can rock the band 5  and get "normal" reception,
>     audio.  This wont be easy.
> 
>     Thanks
> 
>     Hutch
> 
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