[R-390] R-390A Coil Z503 Needed

[ROSS HOCHSTRASSER]

Hi all, I had the one in my 390 open up as well. I was able to "repair" it by applying about 300 volts DC through a 1K 10 watt resistor and drawing an arc from the lead. I can't guarantee your results but it worked for me. I eventually replaced it with a known good one from a 390A carcass I have here, but the "fixed" one was still working OK. 73 Ross W1EKG
> On February 8, 2018 at 5:14 PM Jacques Fortin <jacques.f at videotron.ca> wrote:
> 
> 
> Neil,
> I answered my own question, so yes, I have one in good shape.
> I am just wondering how yours got open.
> 
> 73, Jacques, VE2JFE
> 
> -----Message d'origine-----
> De : r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net] De la part de Jacques Fortin
> Envoyé : 8 février 2018 16:59
> À : r-390 at mailman.qth.net
> Objet : Re: [R-390] R-390A Coil Z503 Needed
> 
> Neil,
> 
> Is it possible that Z503 is identified as 278-0235-009 on the can ?
> 
> 73, Jacques, VE2JFE
> 
> -----Message d'origine-----
> De : r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net] De la part de Neil Hughes Envoyé : 8 février 2018 16:09 À : r-390 at mailman.qth.net Objet : [R-390] R-390A Coil Z503 Needed
> 
> Has anyone got an unwanted Z503 out of an R-390A IF deck?  That is the AGC IF Amplifier output coil on V508...
> I have the coil all apart and it is definitely open...
> Thanks
> 73
> Neil
> VE1YZ
> 
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