[Amps] Dentron ML2500 on 50MHz

[Adrian Rees (M1LCR)]

Hi Jerry
Well yes we are limited to 400 Watts.

I have two 2500's, one is the MLA2500, the other the BA Model (no 28MHz).
Apparently Jim Worsham, W4KXY has converted one to run on 50 MHz and
presented his solution to the Southeastern VHF Convention (USA) in 1998.
ARRL had published the papers from the conference, but these are now out of
print. Hence the Question.

As to 8875's, yes they are rare these days, but I have a few spares. (I
bought both of my 2500's from another amateur, who it transpires had
something to do with the importation into the UK of the amps. As a
consequence, I bought all the spare bottles and transformers / capacitors he
had. So I'm hoping that the amps will see me out. As they say.

Any help appreciated !

Adrian Rees M1LCR

-----Original Message-----
From: Jerry Muller [mailto:jerry at k0tv.com]
Sent: 05 April 2005 22:10
To: Adrian Rees (M1LCR)
Cc: 'AMPS'
Subject: Re: [Amps] Dentron ML2500 on 50MHz


My first thought was, why bother? But then I saw your call and realized that
you are only allowed 400 watts. You'll probably be able to get that much on
an intermittent basis. That amp uses 8875s which are only good for 300w
dissipation each for a total of 600. I bet they're pretty expensive now too.

Cheers,

Jerry K0TV

----- Original Message -----
From: "Adrian Rees (M1LCR)" <rees.a at btconnect.com>
Cc: "'AMPS'" <amps at contesting.com>
Sent: Tuesday, April 05, 2005 4:47 PM
Subject: [Amps] Dentron ML2500 on 50MHz


> Does anyone know if a Dentron ML2500 has been converted or is capable of
> being converted for 50MHz operation ?
>
> Thanks
>
> Adrian Rees (M1LCR)
>
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