[ARC5] R-27/ARC-5 Hookup Question

[D C _Mac_ Macdonald]

Hi, Robert and ARC-5ers.

 

Can you actually feed the HV, gnd, and filament supply in through that back connector?

I'm thinking of building up multiple power supplies and matching sets of remote controls on a chassis to run several receivers.

I recently purchased four 12.6 VAC @ 3 A transformers and already have four transformers with 115/230 V primary and 120 V C.T @ .5 A secondary. 

I figure I can apply ~120 VAC to the seondary and full-wave rectify the 115/230 V primaries to run ARC-5 receivers.  Should be able to get an easy 50 Watts out.

Basically, my idea is to build a box that will power and control up to four ARA/274-N/ARC-5 receivers.

Since some of my "Command" receivers have already been hacked on the rear connector, I can build cables to run them from the "magic" box as well.

I haven't been able to find any receiver racks or I would use some of those instead.

 

 
* * * * * * * * * * * 
* 73 - Mac, K2GKK/5 * 
* (Since 30 Nov 53) * 
* k2gkk at hotmail.com * 
* Oklahoma City, OK * 
* USAF & FAA (Ret.) * 
* * * * * * * * * * * 
 
 
 
 

> From: WA5CAB at cs.com
> Date: Fri, 19 Jul 2013 17:25:42 -0400
> To: arc5 at mailman.qth.net
> Subject: Re: [ARC5] R-27/ARC-5 Hookup Question
> 
> Pin 7 (+HV) isn't used in operation, either. Only on the test bench.
> 
> In a message dated 07/19/2013 15:06:57 PM Central Daylight Time, 
> scr287 at att.net writes: 
> > On 7/19/2013 3:08 PM, J. Forster wrote:
> > 
> > >
> > >1 - GND
> > >2 - Phones
> > >3 - Sensitivity, 50k pot to GND
> > >4 - CW Osc, switch to GND
> > >5 - Screen N/C
> > >6 - + 24 VDC
> > >7 - +HV, N/C
> > >
> > >Is that it or am I missing something.
> > 
> > 
> > Assuming your R-27 is stock, make sure it has a
> > plug-in installed in the front.
> > 
> > The +24V line runs from the rear panel, up to the
> > connector box in the front of the receiver. Then
> > from another pin on that box to the filaments and
> > dynamotor.
> > 
> > For the typical remote control installation, the plug-in
> > had a jumper to make the 24V power connection, in
> > a local control installation, the plug-in held the sensitivity
> > pot and CW-OFF-MCW switch.
> > 
> > The screen voltage connection was used in a test bench
> > setup, it is not used in operation.
> > 
> > Jack Antonio WA7DIA/4
> 
> Robert & Susan Downs - Houston
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