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Radio Make and Model: cobra 29 ltd classic side mike PLL Number: Test gear available: bird meter 1000 hz tone generator ,soldering iron, digital meter ,300 watt dummy load Symptoms: when checking power output on my 29 ltd with a 1000 hz tone and the top cover is on i see 9 watts rms from 2 watts dea...

thanks r196 was change to a 270ohm to lower the dead key carrier. i change it to 10k but the deak stay the same. i think the problem lies in the driver section as if you volt the final the problem is solve but i don't want to volt the final or maybe in the am regulator section. not been the regulato...

i did as you describe but it check out ok there was never a swing kit on the radio when i got the radio only the clarifier mod and tr24 was remove.??

Radio Make and Model: cobra 148 gtl philly made june 1993 PCB Number: PLL Number: mb8719 Test gear available: freq counter,bird meter,dummy load,10amp power supply,soldering iron.1000hz generator Symptoms:not high enough dead key. vr-10 wide open What is working: radio is working What has been tried...

this don't make sense to me cause all the question i ask were answer you need a bigger alt. well lets re-cap the situation. 160 amp alt 2 match 1100 CCAat 32 degress and 980CCA at 0 degrees batteries. they say the rule is WATTS-DIVIDED BY VOLTS=amps and that for every 100watts it should draw 10amps....

thanks to all that replied.
i think i found the problem when i was doing the 1k resistor mod. i was doing it to the middle leg of TR26.
after re checking it suppose to be TR24, now i have full swing in am.

Check the voltage drop across R111 (tell us the voltage on both sides of it, in TX and RX), I have come across issues on this and similar chassis where a capacitor is loading down the DC supply causing a large voltage drop across that resistor, it sounds similar. OK on one end of the resistor, i ha...

i forgot to add,i also have a multimeter,and a 6 amp power supply.

sorry about that.
i was trying to explain all the stuff that was already done to the radio.
so i don't get hit with change this change that.
i'm using a bird meter. i also have the sams photofacts.

Radio Make and Model: cobra 148 gtl PCB Number:philly made 1993 PLL Number:rci 8719 i got this radio a while ago it has low modulation when all the limiter are intact radio dead keys 2watts swings to 3 1/2 if i cut r131 then it swings to 8 watts on a bird i try the 1k resistor to middle leg of tr24 ...