[Elecraft] OT: Astron linear PS regulation issues

[Hank]

A little piece of cork between the TX and the front of the case fixed my 50's hum!  There was something similar from the factory that had fallen out over time.




Hank

K4HYJ


-----Original Message----- 
> From: "Dennis Moore" <dennis at mail4life.net> 
> Cc: elecraft at mailman.qth.net 
> Date: 02/26/19 12:54 
> Subject: Re: [Elecraft] OT: Astron linear PS regulation issues 
> 
> I picked up a RS-50 from a SK estate, it had a terrible hum. Took the 
> cover off and tightened all the hardware, hum went away.
> 
> 73, Dennis NJ6G
> 
> On 2/26/2019 09:17, Ron Genovesi wrote:
> > Astron used to make s great supply. I have the same problem with RS-35M less then a year old.
> > Worked fine for 8 or 9 months then developed a bad hum or buzz. I got tired of listening to it and pulled out a 35 Amp switching supply. Haven’t had the time to pull it apart yet.
> >
> >       Ron Genovesi
> >             N3ETA
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html