Cybernet ptbm125a4x boarded radios

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Avenger
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Cybernet ptbm125a4x boarded radios

Post by Avenger » 23 Dec 2017, 18:54

Can anyone tell me what cybernet ptbm125a4x boarded radios had 3 bands of 40 channels rather than 4 x 50 or 5 x 40?
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Black Spirit
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Re: Cybernet ptbm125a4x boarded radios

Post by Black Spirit » 23 Dec 2017, 19:11

Tristar 777 and late 747 [The one with fine and coarse]

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Re: Cybernet ptbm125a4x boarded radios

Post by Avenger » 23 Dec 2017, 21:18

That solves that mystery then Nick :thumbup: , I've got a radio here with a cb master 3600 front panel but it isn't a 3600. I thought of a 777 but there's no cw on mine however the controls match up with the late 747 with the fine/course which I've never seen before. shame the fronts been changed at some point as the rest of it is quite tidy as they go
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Re: Cybernet ptbm125a4x boarded radios

Post by Mudslinger » 24 Dec 2017, 10:50

I didn't realise that late 747's had the 125 board.

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Re: Cybernet ptbm125a4x boarded radios

Post by Otter » 24 Dec 2017, 12:29

There was a 747 before the 125 boarded one which had the 121 board with fine and coarse, but the front panel was only marked clarifier.
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Re: Cybernet ptbm125a4x boarded radios

Post by Avenger » 24 Dec 2017, 19:05

It stumped me as none of the wiring or controls have been altered and the solder pads where the 4th crystal could fit have never been touched. I didn't know a 120ch version of this board was ever used.
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