[Amps] AL-1200 vs AL-1500

[R.Measures]

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