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I heard some one was upgrading these to a 12 watt audio chip to replace this also seemed like some one was doing a wire to by pass some components and get more out of the audio chip. Anyone have info in this I'll second that its bottle necked the 1969 tip120 is a waste of time as it sits.

Yes that's what I've done but it doesn't spread well with the older 858 radios there were some broad band mods to get full power nearly top to bottom.

Nope using a dummy load for all testing.

So I did the simple 2 switch mod for channels notice that on the Lowe end 26.81.5 not much forward swing and the same at 27.45.5 anything I can do to make it spread a bit better its great around 27.16.5 thanks in advance...

Think I fried the key chain one at work with rf it was in the cubby in my truck right above my 63ffc2 it don't work no mo.

What are we looking at here a boot convertor or start of the amp??

Any updates on this? Nomad

I'll check that and get back to ya later tonight or in the am.

Old old subject but I have a china nw/st was gonna do the 10uf cap npc mod noticed that pin 9 isn't the same as the old pre China radios it's a ground now so hows that work?