Fw: [Milsurplus] Re: RS-6 Radio use

[windy10605 at juno.com]

I took the little spring loaded drive mechanism out, spread it slightly
to "influence" the roller (which engages the dial) to come out, and put a
small piece of new automotive vacuum line on the roller. Works great.

73 Kees K5BCQ


--------- Forwarded message ----------
From: "Hue Miller" <kargo_cult at msn.com>
To: <milsurplus at mailman.qth.net>
Date: Wed, 26 Jan 2005 21:19:42 -0800
Subject: [Milsurplus] Re: RS-6 Radio use
Message-ID: <BAY5-DAV7E247AC20E7EE2C51FEC5E4780 at phx.gbl>
References: <20050126.075706.2328.1.windy10605 at juno.com>


----- Original Message ----- 
From: <windy10605 at juno.com>
Subject: Fw: [Milsurplus] Re: RS-6 Radio use


> You bet !  After a little use, the unit felt "too hot" and that
capacitor
> was found to be swollen due to an internal low resistance path
(possible
> rupture danger). I replaced it with the same type sealed oil capacitor
> and have not had a problem since. Also replaced the small knob rubber
> drive and the dial works much more smoothly.
> 
> 73 Kees K5BCQ

I don't have the manual or the radio handy, but i think the cap was a
paltry
1 uF at 600 v and i think it was called C101-A or something like that. I 
concluded that ANY capacitor right next to the dropping resistor was 
imperilled. At first i considered using some of the storage for the
filter
cap but this would prevent stowing of all the cords etc. I decided a 
choke input filter would be a way to go and would also decrease the
load on the power transformer, with vaguely possible good effects on its
longevity. When i left the leaky cap out, however, the receiver supply 
voltage was too low to fire the receiver voltage regulators. I needed to
decrease the dropping resistor for the receiver. Then, a move to another
city came up and everything went on the way back burner. I still tend to
prefer this approach, choke input filter, and i think i will finish this
up when
i finally get around to that project again. Maybe with choke input filter
the
B+ would be low enuff to even be able to put to use a high-voltage mylar
cap, a 450v one. These beauties have capacities up into 10-20 uF.

Kees, what was the rubber dial piece you replaced and what did you use
for a replacement?  -Hue Miller
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