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Actually saw it working in a cobra 29 ltd classic

I know that it's possible I've seen it before it only produced loweres whish I'd copied it when I had thr radio here.

Started to mod this with the same mod as 02A ge radios and will not do the lower few channels with pin 11 bridged with 3.3k and switch to pin 8 any Idea on this one?

Anyone know where to tap this counter in on a Uniden Madison PC411AD board and what the offsets need to be set at?

Did anyone ever locate d67 on the newer dx boards to add talk back?

Found it loose small electrolytic by the pll the trace was broken were the cap had been moved around or something. Thanks for the help Andy I never would have found it had you not pointed those 3 caps out as a possible issue. Now on to the next thing Channel mod for trc-485

Yeah I had the 17 mhz at the test point I already checked that. I'll take a look at those other areas now.

Did the electrolytic 10 volt caps already what cap is for the agc on this radio and I'll check the voltages at pll Yes the tx is great local on the phone when testing hears me 20 miles away just can't hear him respond cause the rx is not locking on the same channel. Got lot's of spare uniden and...

Yes when keyed both diodes drop to 3.5 ish on the banded side of both d17 and d18 yes it unmodded for slide. How many volts am I looking for on pin 7 and 11 of the pll and what should it be on tx and rx?

Touching back on this finally guess it was 78xl pre weather added actually checked both the vco diodes not surface mounts on this model actually in locations d13 and d16 both test fine both other diodes are around 5.5 volts rx drop to 3.5ish on tx so far have replaced the whole channel selector...

New mic was tried this is the one I use on the bench all the time works fine on my radio. changed the chip changed tr17 supposedly the mic amp and the 10 volt cap next to it for good measure nada still for tx audio or pa audio.

Well I think I have Schematics for the older 29's somewhere but not this newer style with tda2030 any idea what transistor acts as the mic preamplifier?

Have this on the bench with the tda2003 audio chip I have rx audio just fine no tx audio at all. Not even the pa shows any tx audio any ideas? Half burned out audio chip I think they run the tda2003 in bridge mode could half be tx half rx?

Ok back to another question that was raised here earlier maybe 3 pages back has anyone tried the new 2030+ or the hg1969+ I'm here there is one of those out now as well from hg.

Right but we are talking about UFZ24NL this the first time I've run across it.

This whole part number is just new to me never seen one in a radio before couldn't find a reliable data sheet to compare it against a 520.

Doesn't really answer my question as if the IRF520 will out preform it.

Old Thread but here goes I have a v2 of the 980 on the bench with UFZ24NL final in it would there be any benefit in swapping in a 520? Pick up any out put The 880 I have with the irf520 does way better out put than this thing.

Yeah I'm aware of that I used an hg1969 in a cobra 21xlr a few years actually and there was a ceramic cap removal or change I found trolling the net on that to change and with it and the newer 1957 driver and might have changed the predriver to 941 also. soon as I did whatever it was on the cap...

I think they would likely work just fine in an ssb radio like that yes where we aren't doing a bunch of forward swing like on the 29's. I know the fet can handle it on the 29's which is why I was hoping someone could point me the right direction for those on this or help with adding the rfx75...