[Hammarlund] first SP-600 JX-26

[Les Locklear]

Like Andy Moorer said, all those high value resistors and caps in the avc 
chain need to be replaced, pay particular to the silver micas. For many, 
many years they were thought to be good "fprever." Silver migration finally 
caught up to them too.

Don't forget the black tubulars inside T-9 whuch is the second conversion 
can upside down on the bottom side of the chassis. There are a couple in 
there, anywhere from 53-59 total if I remember correctly. My choice of the 
easy to get at ones would be Orange Drops, but use ceramic discs in the rf 
turrett, as they is precious little space on those coils and you need room 
to insert the adjustment tool when aligning.

Do not put any kind of lubricant on the gear train..trust me on this, brass 
gears are self lubricating. Use some synthetic oil on the band change gear 
mechanism and the shafts of the tuning knob and tuning condenser bearings.

Les Locklear
Monitoring Since '57
Located On the Gulf of Mexico
Gulfport, MS.
http://www.hammarlund.info/homepage.html

----- Original Message ----- 
From: "Bob Young" <youngbob53 at msn.com>
To: "Ziegenbein, Randy" <rziegenbein at volcanotherapeutics.com>; "hammarlund" 
<hammarlund at mailman.qth.net>
Sent: Wednesday, March 08, 2006 10:15 PM
Subject: Re: [Hammarlund] first SP-600 JX-26


> Yes it does but not instantly, it takes a few seconds to come back on. 
> Even if the RF gain is all the way down when I switch it to AVC it's clear 
> and blasts for a second or two becomes more and more distorted and then 
> blanks out, this take maybe 2-3 seconds total. It then seems to take a 
> second or two to recover after the AVC switch is shut off.
>
> Bob Young
> Millbury, Ma
>
>
> ----- Original Message ----- 
> From: "Ziegenbein, Randy" <rziegenbein at volcanotherapeutics.com>
> To: "Bob Young" <youngbob53 at msn.com>
> Sent: Wednesday, March 08, 2006 11:19 AM
> Subject: RE: [Hammarlund] first SP-600 JX-26
>
>
> Does it come to life if you back off the rf gain?
> 73, Randy
>
> -----Original Message-----
> From: hammarlund-bounces at mailman.qth.net
> [mailto:hammarlund-bounces at mailman.qth.net] On Behalf Of Bob Young
> Sent: Tuesday, March 07, 2006 11:14 PM
> To: hammarlund
> Subject: [Hammarlund] first SP-600 JX-26
>
> I got my first SP-600 today which incidentally was on ebay a few weeks
> ago,
> here are the problem(s):
> The AVC does not work, when the switch is up in the AVC position, it
> gets
> very loud for a second or two, then gets very distorted and blanks out
> all
> the sound for a few seconds, even with the switch in AVC off then it
> comes
> back. It receives on all bands but is VERY insensitive and noisy on all
> bands except for the bottom two bands and even there I'm sure it should
> be
> more sensitive. The dial calibration is excellent, everything is where
> it
> should be pretty much, WWV is at 2.5, BCB's are very close within a few
> kHz.
> Most of the tubes tested good although several tested marginal and one
> (6AC7) tested dead. I can see why people fall in love with these radios,
>
> solid, solid, solid.
> The lettering is black instead of white which must be a repaint, the
> front
> panel paint is nice, is there an easy way to repaint the lettering
> white?
> Maybe get some white enamel and wipe it into and across the engraved
> letters
> with a rag? I have seen and downloaded the cap article there and expect
> to
> do that and completely re tube it. Any help of hints advice will be
> appreciated,
>
> here are some pictures of it which the former owner took:
>
> http://home.inreach.com/papillon/eBayPics/Hammerlund/
>
> Bob Young
> Millbury, Ma
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