Search results

Would a 3 or 3.5 be ok for am? To eliminate noise from out side sources.

hifi mods for 2013 cobra 25 ltd classic with fake tda2003 audio chip??

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?

Reason I asked it I did a full recap of a Robyn sb520d worked okish before also changed all the c1419s to that part and now have no am modulation I read that tr26 I think it is can cause this just wanted to confirm this part isn't the issue.

I'll look it over again wish I could find a top and bottom view of the board like a Sam's photo fax.

found the post finally that suggested the 2n6487 but when you start trying to cross it it doesn't come back to any of the other mentioned transistors so my question is was this an error on the part number Loosecannon?

Mostly crt and lcd to led monitor conversations as of lately. I did do a couple CD jukes and Mrs. Pacman or 2 this week.

Not so much a mod but an issue wasn't sure where this topic belongs. So I've got a second gen of the original 2970s the one with out the battery for cpu memory uses a cap instead. When plugged in turned on it will not receive or transmit for about 10 mins at room temperature for days doesn't...

Well no I did add talk back but regardless of if it's on or off the problem persists it's not so much a pop more like a free key up ping . None the less kinda annoying. But it last a couple seconds and goes away. I've done a very extensive amount to this radio in hopes my rx would be cleaner...

After looking at unit 399s pages that's someone posted can't remember who but thanks for that. I see one is there for PC-196bd not the ab which is what the 138 uses anyone think this would be easily adapted?

99% sure I changed every electrolytic cap in the radio but might give that a go it does it regardless of which microphone I use.

ever figure this out I have one doing the exact same thing.