[TenTec] SB200 and SB220 Differences?

Rick Westerman Rick at dj0ip.de
Thu Jan 29 09:46:34 EST 2004

The ORIGINAL SB-200 did put out about 800w.
Heathkit soon changed it to reduce the power to about 600w.
The 800w version was killing the sales of the SB-220 and they
wanted to have a greater difference between the two amps.

I owned one of each, but not at the same time.  I never bothered
to sort out what they changed.
Don't know if it was the P.S. or just taps on the output tank.


-----Original Message-----
From: tentec-bounces at contesting.com
[mailto:tentec-bounces at contesting.com]On Behalf Of Ken Brown
Sent: Thursday, January 29, 2004 4:53 AM
To: tentec at contesting.com
Subject: Re: [TenTec] SB200 and SB220 Differences?

SB-200 uses a pair of 572B triodes. The most I have seen come out
of and
SB-200 is maybe 800 Watts, and I suspect there was some reflected
making the  power reading higher than real output. Six hundred or
watts output can be expected. The SB-201 is the post 10 meter
ban version of the same amplifier.

SB-220 uses a pair of 3-500Z triodes and will put out about 1200


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