[AMPS] AL-1200

[alsopb]

Tom,

Thanks for your input.  I really value it.  There is also a big
difference between
what people complain about and what is actually true.  We need your
perspective.

73 de Brian/K3KO

Tom Rauch wrote:
> 
> > Just spent quite a bit of time looking over the past 3 years of
> > archives on the AL-1200
> 
> I looked at the archives of the muscle car reflector. Mustang GTs
> suffer from blown engines, bad spider gears in the rear ends, blown
> transmissions, and occasional splits in two when they hit trees.
> 
> I'm amazed Ford has never fixed the problems,
> 
> > They indicate:
> > 1)40/80 RTTY operation at near full power burns up tank circuit
> > components
> 
> Depends on the blower. For high power RTTY work, a high speed
> blower is required. The original blower was downsized in 1988 to
> reduce complaints about noise.
> 
> > 2)10 meter efficiency is poor with little chance of getting full
> > output
> 
> That was resolved years ago, around the mid-90's. The problem
> was poor grounding of the cathode at the third harmonic of ten
> meters. Changing the input cable to the tube deck cleared most of
> that up.
> 
> > 3)Parasitic oscillation problems haven't been solved
> 
> What parasitic problems? Can you tell me how to identify them?
> 
> > 4)Noise from fan intolerably loud
> 
> Woops. I guess it needs a smaller blower still. Well, there goes the
> CW duty cycle!
> 
> > 5)WARC bands are a compromise because of tuned input circuitry. One
> > has to mistune it to  get both WARC and adjacient non-WARC bands.
> 
> Yep, that's true.
> 
> > Is this info still valid?  If it is, it says manufacturer's apparently
> > never test their products.  I don't understand why anybody would buy this
> > unit.
> 
> Same with Mustangs. I'm amazed Ford sells any. From looking at
> complaint lists, everything is wrong with them!
> 
>  > There doesn't appear to be any currently made amp out there that is
> > instant on, quiet, stable, WARC band friendly with 1.5CCS output
> >
> > Brian/K3KO
> 
> One reason you can't find an amp that fits you needs, is that the
> market doesn't demand one. Another is demands often argue
> against themselves.
> 
> 73, Tom W8JI
> w8ji@contesting.com

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