[GreenKeys] Inside a REC-30 rectifier

Tue Sep 11 14:44:09 EDT 2018

The 816, 866, and 8008 are mercury filled diode tubes, while the 323 is a triode. There are no simple diodes in this power supply. So yes, the 323A/B will work.

Gary
KJ6EFH

A gun is like a parachute, if you ever need one and don't have one, you'll never need one again.....

-----Original Message-----
From: greenkeys-bounces at mailman.qth.net [mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of epvgk at limpoc.com
Sent: Tuesday, September 11, 2018 11:34 AM
To: E.
Cc: greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] Inside a REC-30 rectifier

On Tue, Sep 11, 2018 at 01:31:31PM -0500, E. wrote:
> 
> …so, can these be used on a 19 (or not)?  Love to hear some advice because if they can, please throw my name in!
> 

Mine uses 323B tubes, and came with the model 19, so I assume it was intended for that. 
It produces enough current to run at least one 60mA loop as well as the model 19's keyboard
punch, which needs a lot more current. The thyratrons light up really bright when it's
punching tape. 

eric

> 
> > On Sep 11, 2018, at 12:55 pm, Gary Lynch <lynchgj at linkline.com> wrote:
> > 
> > The REC-30 I have uses 323B tubes and then schematic indicates a 323A can be used, although I’d suspect one shouldn’t mismatch them. 
> >  
> > Gary
> > KJ6EFH
> >  
> > A gun is like a parachute, if you ever need one and don't have one, you'll never need one again.....
> > From: greenkeys-bounces at mailman.qth.net [mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Doc Bill Terrell
> > Sent: Tuesday, September 11, 2018 10:23 AM
> > To: Pete Lancashire; greenkeys
> > Subject: Re: [GreenKeys] Inside a REC-30 rectifier
> >  
> > I have three 8008 mercury rectifiers (and sockets) I will give to anyone who can USE them, for the postage.  The ones pictured are probably 866's or 816's.  Brings back memories from >50 years ago!  Loved the blinking blue light with CW.
> > Doc W8NTZ (68 years on the air)
> >  
> >  
> > On 9/11/2018 1:09 PM, Pete Lancashire wrote:
> >> I have a rec-30 I was going to throw out because it's so heavy but seeing some of these YouTube's of it running I've got to bring it home now and clean it up.
> >>  
> >> On Mon, Sep 10, 2018, 4:31 PM <epvgk at limpoc.com> wrote:
> >>> On Sun, Sep 09, 2018 at 02:14:53AM -0400, Paul Birkel wrote:
> >>> > Glowing mercury thyratrons: inside a 1940s Teletype switching power supply
> >>> > 
> >>> >  
> >>> > 
> >>> > http://www.righto.com/2018/09/glowing-mercury-thyratrons-inside-1940s.html
> >>> > 
> >>> >  
> >>> > 
> >>> > -----
> >>> 
> >>> 
> >>> Here's the inside of mine in operation - https://www.youtube.com/watch?v=fxy2Ifo8Xx0 
> >>> It's in the back of the base of my Model 19, though I don't power it up very often. 
> >>> Instead I have a solid-state 120VDC power supply taking its place, so as not to put
> >>> undue strain on the ancient REC30.  I'm just typing all this text because the mailing
> >>> list appears to reject my messages containing links, and I'm hoping it accepts them
> >>> if they have lots of text too. 
> >>> 
> >>> Sincerely, 
> >>> eric
> >>> 
> >>> 
> >>> > 
> >>> 
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> > -- 
> > My message to the National Football League: Take a knee, and you won't see me ! Bill "Doc" Terrell
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