{Collins} Re: Help! Newbie restoring a pair of gold dust twins



Paul:

My reply to your quest for help on the Gold "Dusty" Twins bounced.  My
e-mail address was refused???

Do you have a way of avoiding this (without posting to the reflector)?

73

Peter
VE3AX


----- Original Message -----
From: "W4QG" <W4QG@xxxxxxxxxx>
To: <collins@xxxxxxxxxxxxx>
Sent: Thursday, July 08, 2004 10:49 PM
Subject: {Collins} Help! Newbie restoring a pair of gold dust twins


> Hello All,
> Excuse the long post. This is my first attempt at restoring
> any vintage equipment and I could use some advice.
>
> I just purchased a pair of gold dust twins.
> I think I got a pretty good deal, $1000 for both.
> That's the good news....
>
> Here is the rest of the story:
> I bought these from a another ham who purchased
> them from the wife of a SK who was the original owner.
> (who knows what he paid for them from the SK's wife but I'd bet
> it was next to nothing)  He didn't do anything with them except run
> a damp cloth over them.
>
> The 75A-4 is missing a couple of tubes (5Y3GT and 6AL5) and according to
> the fellow I bought them from the receiver was believed to be not working
> by the wife of the SK. It appears to have had a modification around V22,
> There is a pot hanging out from the chassis. There is also a mod on V3,
> a socket adaptor has been cut in and a cap is hanging off of it.
> The paint is fair at best. Lots of small chips all over the enclosure -
none
> or very few on the face. Has CW and SSB filters. It still has the original
power cord.
>
> The KWS-1 is supposed to be working or at least it was the last time the
> SK used it - about 10 years ago. The KWS-1's RF deck appears to be in good
> shape besides for the paint. The paint is pretty rough, front
> face is nice except for around the lid - many many small chips on the
enclosure.
> There is a large cap from V102 to ground. It is just hanging there. Pretty
sloppy...
> The audio gain knob is not original. No blower hose. The power supply
seems
> to have several mods. Paint is rough. Missing F501 and F502 fuses.
> Also missing V506 (OB2) and V505 (12AX7). V509 (6A57-G) has been pulled
and
> has a jumper wire attached between two receptacles on the socket. V503
(5Y3GT)
> has been pulled and two wires are running to some resistors (also just
hanging there)
> Looks like another wire is just hanging there not attached to anything.
Apparently the
> power supply has been converted to a solid state rectifier V501 and V502
(886A's)
> have been pulled and replaced with diode rectifiers by Solitron Devices
Corp.
> Looks like the door has the original key. There are many holes along the
front sides
> of the enclosure. Is there supposed to be trim there or something??? Is
anyone familiar
> with these modifications? If so are they preferred to the original design?
> The modification around V503 looks highly suspect.....
>
> What are my options on the hose?
>
> I have read about the cap replacements in the KWS-1, any similar issues
with the
> 75A-4? ( I am planning on tackling the 75A-4 first....) Any advice on
bringing up the 75A-4
> after being dead for 10+ years??? I wish I had a big variac... I would
assume it would be a
> good idea to replace the 2 prong power cord with a three before doing
anything???
> I am planning on pulling the chassis and giving it a through cleaning.
Then scrubbing
> the enclosure with some mild detergent and water.  In have checked the
reflector archives
> on the painting issue. Anyone have any recommendations?
>
> I also bought a ITT R-390A ($150), I've done some checking around on that
one, I can't
> find any mention of it anywhere. Any ideas?
>
> Thanks to all.
>
> 73,
>
> Paul W4QG
>
>
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Nets: Tues: 3.805 Mc-2000 Central / Thur: 3.875 Mc-2000 Central
Fri: 3.895 Mc-2000 Pacific / Sun: 14.263 Mc-2000 UTC
1st Wed (of the month) AM Net 3.880 Mc-2000 local (ET, CT, MT, PT)
Sun AM Net: 29.050 Mc-1200 Central






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