[SixClub] Heathkit SB-220

[Roger (K8RI) on Six]

They are a pair of 3-500Zs.  The tune procedure for any rig of a similar 
configuration should work just fine.  Check out the BAMA web site for amps 
like the Henry 2K, 2K4, etc.  Any thing in that series should tune 
similarily.

Me? I just tune for max  output with the tun and load while increasing the 
drive.
I don't remember if the 220 had a tune position, or seperate positions for 
CW and SSB.
Unless you have one brute of a power supply tune up in the tune position, or 
CW, then switch to SSB as tunning for full out in the SSB position drags the 
plate voltage way down.

However I'll see if I can find the manual for my 2K4 for the procedure.
If the thing weren't so GAWD afful big I'd convert it to 6, but I just don't 
have room for it here in the shack. Besides, I'm not much a of a 3-500Z fan 
with their low 10db gain. I much prefer the new ceramic tubes.  I'm not sure 
if the Svetlana tubes are still available or not.   I can use the 2K4 out in 
the shop and once I get the horizontal stabilizer on the airplane I'll have 
a *lot* more room.  THEN I'm going to move a big office desk, and maybe a 
couch out there.  The whole shop is temperature controlled year round.  Even 
the concrete floor is insulated from the ground and outside. 
http://www.rogerhalstead.com/ham_files/boatanch.htm  It's under the bench in 
the photo showing the hallicrafters stuff.

OTOH, I'd be glad to trade the 2K4 with two sets of good tubes (one pair new 
and matched)
for an old 76A.  It also has a very heavy plate transformer added.

Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2
www.rogerhalstead.com

>
> Hi Scott,
> I was going thru my old mail files and discovered yours,
> since then I now find myself also with a SB 220 converted to six
> meters and no manual, schematic, nothing...
>
> I really  don't want to attempt even tuning it up until I get a clue of 
> its operation,
> Since your inquiry to the six club looking for info or a manual were you 
> successful, and have you been using yours ?
>
> Any suggestions for how I should pursue seeking tune up info, or can you 
> please take the time to briefly lay it out for me ?
>
> Any help will be greatly appreciated,
> Thank you.
> Kim  K7DGI ex  WA7BTG
> Belfair Wa.
>
>
>
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