Strange Lincoln mod?

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FAFFER
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Strange Lincoln mod?

Post by FAFFER » 07 Sep 2017, 09:16

Maybe it's a common one, can't say I'm that well up on them. But would be interested to know what it's doing...?

Some sort of tx relay, tie wrapped in, then a transistor and a resistor added between the two "Don't ADJ" signs..

Any ideas?

Cheers, Paul.

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Otter
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Re: Strange Lincoln mod?

Post by Otter » 07 Sep 2017, 09:40

Possibly to eliminate talkback?
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Re: Strange Lincoln mod?

Post by FAFFER » 07 Sep 2017, 10:54

Seems to add up. It definately fires the relay on Tx...

Thanks. :)
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NUBSTER
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Re: Strange Lincoln mod?

Post by NUBSTER » 07 Sep 2017, 12:59

Is it a old original Lincoln from the 80's /90's or one of the new ones based on the Anyclone radios ? cos if it's a old school one the don't have talk back fitted and TBH looking at that PCB in the pic it looks like a original one.

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Re: Strange Lincoln mod?

Post by FAFFER » 07 Sep 2017, 16:16

It's a 1999 model according to the sticker on the top. Output is a mrf 455 if that helps.

Cheers.
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sickboy
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Re: Strange Lincoln mod?

Post by sickboy » 07 Sep 2017, 16:36

The original Lincoln did indeed have talkback fitted and it looks like that's what the modification is.
See here...

https://www.manualslib.com/manual/84011 ... ml?page=13
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Re: Strange Lincoln mod?

Post by FAFFER » 07 Sep 2017, 19:34

I'm not even sure what "talkback" is tbh?

Thanks all.
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Re: Strange Lincoln mod?

Post by NUBSTER » 07 Sep 2017, 19:36

Didnt know that, mine and two of my mates who own originals don't have any talk back fitted, so most of them ,must have had them removed cos TBH I haven't com across one with it fitted
Last edited by NUBSTER on 08 Sep 2017, 08:56, edited 1 time in total.

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Re: Strange Lincoln mod?

Post by FAFFER » 07 Sep 2017, 19:42

Me neither! Never heard of it before! Have googled what it was now though...

Thanks everyone! That puts that to bed! :D
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Re: Strange Lincoln mod?

Post by NightProwler » 07 Sep 2017, 20:13

I had the same mod with the relay in my 2830 but I removed it and done it the neater way.
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Re: Strange Lincoln mod?

Post by astradyne » 09 Sep 2017, 11:19

FAFFER wrote:It's a 1999 model according to the sticker on the top. Output is a mrf 455 if that helps.

Cheers.
In the1999 version there was no talkback feature. This was only present in the very first Lincoln's/2830's manufactured in Taiwan (with the grey control knobs). People generally disliked it so had mods done to remove the talkback feature.

The talkback feature was factory removed from the radio's on the second run (with the black control knobs) which were made in the Philippines.

Having the MRF455 output yours is definitely a very late model, so should have no need at all for the talkback mod.
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Re: Strange Lincoln mod?

Post by FAFFER » 10 Sep 2017, 02:17

I know what you're saying...

But this mod is there...so, no idea! :)
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Re: Strange Lincoln mod?

Post by astradyne » 11 Sep 2017, 17:34

FAFFER wrote:I know what you're saying...

But this mod is there...so, no idea! :)
The relay would be there to disconnect the audio to the speaker during RX and stop the tailback.

Is there a wire going from the relay to the internal speaker?
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Re: Strange Lincoln mod?

Post by FAFFER » 11 Sep 2017, 19:02

No I don't think so. I just think the blue and white wires go to the other side of the board. :)

My mate has it now, it works fine! We were just interested in wtf it was! :lol:
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