[Heathkit] SB-220 tuning cap arcing

[Carl]

Having been handed sealed SB-220 and 221 boxes at Heathkit stores I can say 
that I have seen 220's with wide spaced caps and never a 221 without them.

The very late 220 chassis will have holes for both caps as did a few 221's 
Ive seen so I have to assume the transition used up whatever was available.

I cant comment on the transformer plug for sure but Im fairly confident that 
was a 220 chasis with 221 labels and again using up everything available. 
Photos would help.

Having had well over 400 SB-220 thru HL-2200's go thru my hands since it was 
introduced for construction, repairs and 6M conversions Ive probably seen 
more than most. But that doesnt mean I havent forgot a few things either.

Carl
KM1H




----- Original Message ----- 
From: "Rick Poole" <wa1rkt at arrl.net>
To: <heathkit at mailman.qth.net>
Sent: Tuesday, March 27, 2012 4:13 PM
Subject: [Heathkit] SB-220 tuning cap arcing


>
> Is arcing at the tuning cap really a common problem with the SB-220?
>
> Would I be better off to forget about the 220 and try to find a good
> 221?  I don't really care about 10 meters all that much.
>
> Some tell me that all of the 221's and the latest 220's had the
> wider-spacing tuning cap.  Others tell me that none of the 220's and
> only the later 221's had it.
>
> It appears that there are many more 220's available than 221's so if
> I can find a 220 with the wide spaced tuning cap that seems best, but
> the chances of finding a seller who even knows if he has the wide cap
> seem slim at best, these days...
>
> Thanks...
>
> Rick WA1RKT
>
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