On Feb 23, 2005, at 5:17 PM, Dennis Sokol wrote:
> Most contest stations choosing Ameritron use the Al-1200. Several
> reasons but primarily the 3CX1200A7 is virtually indestructible and
> instant on so in the heat of contesting, the owners don't worry about
> how the guest operators use them. Except for the tubes, the two
> amplifiers are virtually identical and have the same power supply and
> tank circuits.
>
> The AL-1500 puts out more power with less drive but has that annoying
> three minutes plus warm up time.
Good point. Other advantages are that the AL-1200 uses a parasite
suppressor, the AL-1500 does not, plus the 3cx1200A7 does not use a
gold plated grid, and the 8877 does -- i. e., it can suffer from
gold-sputtering during a parasite. However, for those who like big
surprises, an 8877 amp with no parasite suppressor whatsoever is
definitely the way to go.
cheerz, Dennis
>
> 73, Dennis W0JX
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>
Richard L. Measures, AG6K, 805.386.3734. www.somis.org
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