[ARC5] Waking up Command Receivers

[Bill Cotter]

Likewise, I never restuff the cans, I find the 
reward less than the effort. What I have used on 
the last six ARC-5 receivers are the recap kits 
from N3LLL. See attached. They are modestly 
priced and make a quick and tidy job of recapping.

n3lll at kitparts.com

73 Bill N4LG



At 11:53 AM 7/5/2021, Mark K3MSB wrote:
>I never repot the caps.  I just replace them 
>with individual capacitors.    Recapping the 
>SCR-274N receivers is straightforward and takes 
>just a few hours time (if you're slow like me.....).
>
>
>
>On Mon, Jul 5, 2021 at 11:49 AM J Mcvey 
><<mailto:ac2eu at yahoo.com>ac2eu at yahoo.com> wrote:
>
>Yes the caps tend to be very leaky. The big ones 
>on the power lines will go dead short all of 
>sudden- even after the radio has been on a while!
>If you intend to use the radio, definitely 
>consider re-potting all of the caps. The 
>performance will probably improve also.
>I use a pipe cutter to make a clean cut, but a 
>hack saw will work too...
>
>I've has less problems with the resistors, but 
>that may depend on how the radio was stored.
>On Monday, July 5, 2021, 11:27:34 AM EDT, 
><<mailto:gewhite at crosslink.net>gewhite at crosslink.net> wrote:
>
>
>I have a couple of power supplies for the 
>AN/ARC-5 and SCR-274N that plug into the 
>dynamotor receptacle and  are powered by 110 
>volts AC. One was made by the lab at Aircraft 
>Radio Corp and I made the other myself. 
>Reasonably neat construction. I want $50 each 
>plus postage. - Gordon Eliot White, po box 129, 
>Hardyville, VA 23070 804-695-4628
>
>
>
>
>-------- Original Message --------
>Subject: Re: [ARC5] Waking up Command Receivers
>From: Mark K3MSB <<mailto:mark.k3msb at gmail.com>mark.k3msb at gmail.com>
>Date: Mon, July 05, 2021 5:48 am
>To:
>Cc: ARC-5 <<mailto:arc5 at mailman.qth.net>arc5 at mailman.qth.net>
>
>Alternatively, you could just use a 28V 
>dynamotor powered off of a 24 V supply  (or 
>build a 28V linear supply as I did).  28V 
>Supplies are pretty cheap on Amazon (just be 
>sure to bypass the output lines as these are switching supplies).
>
>In Feb 2020, using a stock BC-453B,  I logged 
>68 NDBs during a weekend listening sprint with 
>the receiver connected to my 160M INV-L antenna.
>
>73 Mark K3MSB
>
>
>
>On Sat, Jul 3, 2021 at 11:19 AM Al Klase 
><<mailto:ark at ar88.net>ark at ar88.net> wrote:
>Gang,
>
>We all have these things languishing in our 
>collections.  Here's how to use one without 
>building up a complete system.
><http://www.skywaves.ar88.net/homebrew/ARC-5_PS/ARC-5_PS.html>http://www.skywaves.ar88.net/homebrew/ARC-5_PS/ARC-5_PS.html
>Let me know if you have comments or corrections.
>
>73,
>Al
>
>--
>
>Al Klase - N3FRQ
>
>Jersey City, NJ
>
><http://www.skywaves.ar88.net>http://www.skywaves.ar88.net
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