[Amps] MLA-2500 Tube Conversion

Joe Subich, W4TV lists at subich.com
Mon Oct 11 23:21:03 EDT 2021


On 2021-10-11 11:04 PM, Kim Elmore wrote:
 > My dad had an MLA-2500. They’re Allen head screws.

I'd bet on a 5/64" Allen but it's been 30+ years since I had
my hands on an MLA-2500 so it could just as well have been
1/16"or 3/32" but nothing larger than that.

73,

    ... Joe, W4TV


On 2021-10-11 11:04 PM, Kim Elmore wrote:
> My dad had an MLA-2500. They’re Allen head screws.
> 
> Kim N5OP
> 
> "People that make music together cannot be enemies, at least as long as the music lasts." -- Paul Hindemith
> 
>> On Oct 11, 2021, at 9:41 PM, BILL KENNAMER <k5fuv at prodigy.net> wrote:
>>
>> Mine are regular Allen screws in my MLA2500. Allen and Bristol wrenches not the same thing. I just use a regular old set of all sizes in one folding case.
>> Bristol wrenches are used on old Collins equipment, like the 75A4. I let my set go when I parted with A4 years ago.
>> K5FUV
>>
>>
>> Sent from AT&T Yahoo Mail for iPad
>>
>>
>> On Monday, October 11, 2021, 7:58 PM, David Gow <6146guy at gmail.com> wrote:
>>
>> If they are metric hex wrenches any good hardware or commercial fastening
>> house will have them and so does Amazon.. Be sure they are to
>> Bristol wrench.  If they  are also easy to on Amazon or many other sources
>> including the Bristol Wrench Co. the original manufacture. fing, just
>> google them.  Allen was the original manufacturer but the common term now
>> is hex wrenches.  If there a unique Soviet design you are on your own but I
>> bet they are metric hex.
>>
>>> On Mon, Oct 11, 2021 at 5:03 PM Robert W5AJ <woodr90 at gmail.com> wrote:
>>>
>>> Additionally
>>> Anyone located a supplier for the allen wrench head screws used to hold
>>> covers on??
>>>
>>> Robert
>>>
>>>> On Sun, Oct 10, 2021, 10:01 AM N4zed <n4zed at comcast.net> wrote:
>>>>
>>>> Has anyone here attempted the tube conversion for the Dentron MLA-2500
>>> from
>>>> the 8875 tube to the 3CX800A7?
>>>>
>>>> I have the instructions laid out by LX2KL and I have a filament
>>> transformer
>>>> for the tubes.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Thanks
>>>>
>>>> N4zed



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