[Heathkit] SB-240 on the Bay.

[jeremy-ca]

$3227.77 WOW!!
Won by Dr Arnie Gold of NYC. Arnie is one heck of a collector and Ive sold 
him several National and Collins items over the years.

Carl
KM1H


----- Original Message ----- 
From: <kiyoinc at attglobal.net>
To: <heathkit at mailman.qth.net>
Sent: Tuesday, March 13, 2007 8:41 AM
Subject: [Heathkit] SB-240 on the Bay.


>
> There's an SB-240 on the Bay.
>
> I never knew such a thing existed.  It looks like an SB-220 married an 
> SB-230 and had mutant children.
>
> It's attractive and repulsive, at least to my eyes.
>
> Here's the chat from the listing:
>
> ================  Start Q&A ==
>
> Item number: 130086185923
> Questions from other members : Heathkit SB-240 two-kw linear 80-10 meter 
> (proto-type)
>
> Question & Answer Answered On
>
>
> Q:  I work with a guy who was on the team that wrote the final manual for 
> this rig, and he also has one of them. I showed him this listing, and I'll 
> pass along a few of his comments. It was very near going into production, 
> but was trumped by the SS-9000, the 10m band changes, and the fact that 
> using a metal screwdriver to do the SWR null will kill you. He says his 
> unit worked exceptionally well, and had no idle current. (?) He thinks 
> there were just six or seven units out for proofbuild, a number that will, 
> apparently, remain unconfirmable. Good luck! Mar-09-07
>
> A:  Another thank you for more background info. Cheers, Bob.
>
>
>
> Q:  Can I infer this is a SB220 with the std updates and modified meter 
> switching? Trying to figure out if there is a more substantial 
> distinction. Also would appriciate knowing if/why you haven't tested it. 
> thanks, Don K1VSK Mar-08-07
>
> A:  This is a proto-type (as explained in the description) model SB-240 
> linear which never went into production. From the feedback I received it 
> appears that about 15 may have been released by the Heath company to 
> selected engineers for what is now commonally called Beta testing. I have 
> only used a linear twice in 45+ years of hamming (from KA1DX, Marcus 
> Island, and KA1CQ, Iwo Jima, in the 1972-73 time frame. I belive this one 
> is wired for 220-volts and I don't have a 220 outlet in the shack even if 
> I wanted to test it. Hope this helps. Thanks for the query. Bob
>
>
>
> Q:  I'm not in the bidding for the amplifier, but just wanted to thank you 
> for posting such an interesting piece of ham radio history. My contact 
> with Heathkit started with an AR-3 kit my father built with me in the 
> mid-late 1950's (?) up through an HW-5400 that I assembled in the 80's - 
> it sat for many years, but I put it back on the air for a while last 
> summer, and it did a decent job for a 20-year old rig. Anyway, thanks 
> again for the photo's and information. 73, Neil KX2Y Mar-04-07
>
> A:  Thanks for the kind words. I'm actually listing the amplifier for the 
> world's largest R.L. Drake collector--Sindre, LA6OP, who purchased it from 
> M. Elliot's estate after Dayton last year. But he didn't want to try 
> shipping this one back to Norway.
>
>
>
> Q:  According to Chuck Brainerd, KA1PM, there were about 15 SB-240s made. 
> Most went to Heath engineers. I had one built by him (KA1PM, (founder of 
> Tennadyne antenna company) when he worked for Heath. He sold it to KE0TT 
> and I traded an Alpha 76 for it and allowed him $500 for the '240. I later 
> sold it for $500. Ha, sure wish I had it back now. Incidentally both KA1PM 
> and KE0TT used it regularly. 73, Larry, K0RS Mar-04-07
>
> A:  Thanks for the additional history behind the SB-240. I rather 
> suspected there were others released by the Heath company. Additional 
> references to Mike Elliot may be found in A Familty Affair, the Drake 
> book. He was probably working for Heath at the time this one was built. He 
> designed the SB-104 and also worked for Collins. Again, thanks for the 
> background on the amp. Cheers to all who are tracking the listing.
>
>
> =============== SB-240 ==
>
> This is a part of Heath-history.
>
> de ah6gi/4
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