[R-390] Selenium Rectifier

[Barry Hauser]

Hi DW

All you'll find are NOS or pulls from chassis and it's best not to rely on 
them.  I think most would agree, it's OK if the SS bridge is visible -- you 
have to peek down the back with the cover off -- and that's downright nosey. 
Even if seen, it shows you care. ;-)

I haven't had any seleniums fail lately, but one did when I was merely a 
child back in the late 50's -- in a Motorola TV.  The smoke and acrid stink 
left quite an impression. (If I think about it real hard, I could make 
myself choke.)  When my uncle visited, he replaced it with the latest 
thing -- a tiny, shiney, "top hat" silicon rectifier.

It's customary to leave the Se rectifier in place and mount the solid state 
replacement nearby.  SOP around here.  They're still pretty, brightly 
colored and be-finned, yet safe if not in the circuit.

Barry

----- Original Message ----- 
From: "DW Holtman" <future212 at comcast.net>
To: <R-390 at mailman.qth.net>
Sent: Tuesday, November 15, 2005 5:10 PM
Subject: [R-390] Selenium Rectifier


> Hello,
>
> Does anyone know where I might buy a Selenium Rectifier for the chassis of 
> a R-390A, CR-102. I have replaced it with a solid state bridge for now, 
> but would very much like to get something more original in the chassis.  I 
> could not figure out a clever way to hide the diodes inside the selenium 
> fins.
>
> Thank you for your time.
>
> 73's
> DW Holtman
> WB7SSN
>
>
> Selenium
>
>
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