[GreenKeys] Extra transformer out there?

[epvgk at limpoc.com]

On Mon, Mar 12, 2018 at 05:14:49PM -0500, E. wrote:
> 
> Hi Eric & Steve,
> 
> I’ve tested it, it does… if it runs off the power supply all by itself :) .  The problem I’m running into is that when both the perforator and typing units are connected to the power supply, it ~mostly~ works.  The drawback is that the meter doesn’t have enough power to do the counting when the switch is selected to keyboard/perforator.  It does punch and type at the same time, though, when the switch is that position.  So what I was hoping to do was to have one-each of these power supplies (two total - I already have one), connected independently to each unit (perforator and typing unit), so that each is powered independently.  On ebay, they’re asking (after an offer) for $45 + shipping.  Yikes @o@; !!!~
> 
> Sincerely,
> Eric :)

Interesting - maybe there are different versions of either that power supply or the 
M19 punch, or both.  

Before I restored the original REC-30 power box in my M19, I tried using that same 
supply (or what looks just like it) from my M28 and it didn't work. It was enough to 
twitch slightly and you could hear a slight tap when current was applied, but it 
didn't come close to even hitting the paper, much less perforating it.  

I don't power it up often because i now use a solid-state 120VDC supply, but the
M19's original REC-30 thyratron based power supply will run several loops as well as
the punch, and provides a light show at the same time: 

https://www.youtube.com/watch?v=fxy2Ifo8Xx0

-eric

> 
> 
> > I was getting to say the same thing Eric just posted.  Those supplies weren't designed to run a punch like on the M19.  Just light duty on M28s.
> > 
> > You need a hefty supply, similar to the original supplies that came with the M19.
> > 
> > Steve G./N4TTY
> > Sent from my iPhone
> 
> 
> > On Mar 12, 2018, at 5:02 pm, eric <epvgk at limpoc.com> wrote:
> > 
> > I'm not sure I understand your plans but I'm pretty sure those transformer/loop supply modules won't produce enough current to run the perforator on a model 19. (if it's the same as the identical-looking one in my 28) That big M19 punch solenoid draws a lot of current.
> > 
> > On 2018-03-12 14:03, E. wrote:
> > 
> >>  
> >> Group,
> >>  
> >> Does anyone have an extra Teletype (transformer) power supply out there, by chance?... like the one in the attached photo?  I need one more, in order to run both the typing unit and perforator (at the same time) on my 19.  There are currently two on ebay, but they are asking for way to much :/ .  Not sure if anyone has an extra they would be willing to part with - and even at a reasonable price, if requested (unlike ebay >< )... so close to having her done ;D .
> >>  
> >> Thanks much all!
> >>  
> >> Sincerely,
> >> Eric :)
> >> -.- ----- .--- .. .-
> >>  
> >>  
> >> <IMG_7904.jpg>
> >> 
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