That is some very nice work.
73,
Gary...wa6fgi
----- Original Message -----
From: "Tony King - W4ZT" <amps080605@w4zt.com>
To: <amps@contesting.com>
Sent: Wednesday, January 18, 2006 8:20 PM
Subject: Re: [Amps] MLA-2500 Power Supply Capacity
> Bob,
>
> Lawson Summerrow, W4EMF, did a very nice conversion of the MLA-2500 to a
> pair of 3CX800A7s. A few pictures can be seen here:
> <http://w4emf.gs35b.com/mla2500-retro-3cx800/>
>
> There's no other info available on that retro but the pictures should
> give you enough to decide whether you want to take it on.
>
> 73, Tony W4ZT
>
> k6zz@mail.ccis.com wrote:
>> Hi Folks,
>>
>> I could use some advice on the MLA-2500 power supply. I'm
>> planning to put a pair of 3CX800A7's in a tubeless but
>> otherwise very good condition MLA-2500. It seems like a
>> straightforward modification, but I am somewhat concerned
>> about comments I have seen regarding the ability of the
>> power supply to handle these tubes. What is it about these
>> particular tubes that would put an extra strain on the power
>> supply? If they aren't driven any harder than the original
>> 8875's or a pair of 8874's, what difference would it make?
>> I could use different tubes but I happen to have a good pair
>> of 3CX800A7's so I'm inclined to move forward if the power
>> supply can handle it.
>>
>> I have no desire to push the modified amplifier to power
>> levels beyond its capacity, but I would like to comfortably
>> run the amp at the legal limit if the power supply and tank
>> circuit can handle it.
>>
>> Have you done this particular modification before? Is the
>> power supply up to the task? If not, what can be done to
>> improve its shortcomings?
>>
>> 73, Bob K6ZZ
>>
>>
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>>
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