[Amps] Enabling 10 Meters: Dentron MLA-2500

[Carl]

If the bandswitch moves to the 10M position then you only have to 
connect a #14 or #12 wire from the switch to the airwound coil at 3/12 
turns from the end. This is at the bottom of the coil and inline with 
the 15M tap. Make sure you get a good solder flow on the coil 
especially, many irons and small guns arent up to the task.

Do not use on 12M unless you  remove 3-4 turns from the plate choke.

If you intend to use on 80/160 then add a .0047 or .01 @ 3KV disc cap at 
the base of that choke. Mouser carries these. Dentrons are notorious for 
blowing the PS and with only 500pf for a bypass RF gets into the 
electrolytics and they get a bit upset.

Carl
KM1H



----- Original Message ----- 
From: "Ryan Foster" <foster.ryan at gmail.com>
To: <amps at contesting.com>
Sent: Monday, March 16, 2009 10:01 AM
Subject: Re: [Amps] Enabling 10 Meters: Dentron MLA-2500


>I apologize for this question I am sure has been asked before, but I
> can't find it.
>
> I know that Dentron used many methods to disable 10m opperation.  I
> bought an MLA-2500 a while ago and on 10m it will supply grid current
> and it would while keyed, but there is no output.  Can anyone tell me
> which disabling method (or combination of) would be responsible for
> this?  I have not been able to spot it from looking, but it could be
> missing a band switch wire that I would not know to connect.
>
> Thanks
>
> Ryan w8cya
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