[Heathkit] Re: SB-240 on the Bay.

[jeremy-ca]

Also interesting to note that it had electronic bias. The circuit board 
looks rather complicated, on a level of the Alpha 77 which had switching 
spikes going over the air; there was a mod that partially corrected it. The 
current Ameritron design works quite well tho.

 There is also a vacuum relay so it may have full QSK as in the Alpha 77 
series.

I just might give Arnie a call and ask for a schematic copy; my curiosity is 
aroused!

Carl
KM1H
National Radio 1963-69


.
----- Original Message ----- 
From: <kiyoinc at attglobal.net>
To: <heathkit at mailman.qth.net>
Sent: Wednesday, March 14, 2007 7:08 AM
Subject: [Heathkit] Re: SB-240 on the Bay.


> Thanks for all the info on the SB-240.  I almost bid on it but decided 
> that it was out of my league.
>
> Like Peter, I expected it to go much higher.  The sale included a draft 
> manual with handwritten notes.  Collectors call it "Prove-nance", written 
> records, the proof of authenticity.
>
> The images of the manual were educational.  So that's how Heath did it.
>
> The value is there.
>
> Figure you could use it on the air and not wear anything out.  It's a full 
> power amp with 10 meters.  That in itself puts a lower limit on the price. 
> Add in the rarity, history, and documentation.
>
> What bragging rights!
>
> de ah6gi/4   Hope someone archived the pictures.  Anyone from the virtual 
> Heathkit museum listening?
>
>
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