[Amps] SB220
Vic Rosenthal
vic at rakefet.com
Tue Nov 4 08:21:10 EST 2003
ZL2AAA wrote:
> Hi All A local amateur has the opportunity to purchase a SB220 with
> new 3/500's what are the pro's and con's for this amp and what is a
> reasonable price .Tnx Morrie
Can't tell you a reasonable price in NZ, since it depends on supply &
demand, but here are some pros & cons:
Pros:
Usually available cheap. Simple, 3-500Z's still available. Lots of
useful modifications available.
Cons:
Getting old, power supply components and blower may be aging. GOOD
3-500Z's can be hard to find. Does not cover 160 meters. Slow
open-frame t/r relay. Build quality depends on original builder. Lots
of inappropriate modifications available.
Vic K2VCO
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