[Amps] ALS-600 vs ALS-1300

[Kevin Stover]

The 600's do work well.
The MRF-150 is a tried and true FET.
The only problem anybody ever complained about on the 1300 was the low 
voltage (12V) power supply.
It had a ridiculous failure rate for about a year. That's been fixed.
The PS that ships with the 1300 is a switcher.

If I had one I'd run it at 1KW CW and SSB all day, 500W RTTY. I'd also 
be saving $1K over the competition, the SPE Expert 1-KFA.


On 4/13/2014 6:59 PM, Roger wrote:
>
> Do the 600s work well?  If so, there is nothing wrong with using a 
> pair of them with dividers and combiners. It's a very good way to 
> double the power.  Put 4 together and run them conservatively.  It 
> might improve the IM.  OTOH that's a lot of current out of a PS.
>
> Most higher powered SS amps are 2 or 4 individual PP amps/sections 
> tied together with combiners.  It works well with 2-meter amps There 
> used to be one that had 4 sections and ran 600 watts. I had one for a 
> while. The original owner talked me into selling it back to him.  At 
> times I wish I'd kept it.
>
> You can do the same with 2-meter amps. Just disable the keying in one 
> and let the remaining one key both.  You do have to keep the phasing 
> such that the signal from one doesn't get back into the input of the 
> other and you end up with a high powered flip flop and the amps have 
> to be identical for the simplest setup.
>
> 73
>
> Roger (K8RI)
>
>
>


-- 
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441