[R-390] R390 EMI filter replaced.

[Barry]

I seem to recall it was the caps.  Their leads disintegrated.  I reused the inductors and used new caps.  I may have pictures of that operation I can dig up.

Barry - N4BUQ

----- Original Message -----
> From: "R-390 Mailing List" <r-390 at mailman.qth.net>
> Cc: "R-390 Mailing List" <r-390 at mailman.qth.net>
> Sent: Sunday, June 23, 2024 4:04:19 PM
> Subject: Re: [R-390] R390 EMI filter replaced.

> BarryWhat failed?  Shorted cap or open inductor?Jim
> Logic: Method used to arrive at the wrong conclusion, with confidence.  Murphy
> 
>    On Sunday, June 23, 2024 at 03:34:34 PM CDT, Barry Scott
>    <72volkswagon at gmail.com> wrote:
> 
> Looks good.  Mine failed a couple of years ago and I rebuilt it.  It wasn't
> fun but it can be done.
> 
> Thanks,
> Barry - N4BUQ
> 
> 
> On Sat, Jun 22, 2024 at 1:09 PM Frank Hughes via R-390 <
> r-390 at mailman.qth.net> wrote:
> 
>> An R-390 I picked up years ago at a local Hamfest stopped powering up.
>> Traced the issue to the SPRAGUE AC line filter.
>> Replacing it w/ a CORCOM 3EQ1, which fits in the space where the original
>> filter was installed.
>>
>> I recovered the original 4-pin male R-390 power connector from the SPRAGUE
>> filter,
>> so that the original power cord and appearance can be maintained.
>> 73
>> Frank
>> KJ4OLL
>>
>>
>> ______________________________________________________________
>> R-390 mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/r-390
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:R-390 at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:R-390 at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:R-390 at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html