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Morning Mr. Nomad Cobra 2000, Transmits carrier on AM. Receives tone on AM and SSB. No modulation on AM, SSB or PA You remember that white Hygain radio you sold on e-bay? I was the buyer. Cheer's Scott Colorado

All electrolytic cap's replaced, Still no transmit modulation, I shot gunned a new TA7222O (IC6) in still inop. I found a part's list in CB tricks https://cbtricks.org/radios/cobra/2000gtl/graphics/cobra_2000gtl_om_part_list.pdf And there are Tantalum cap's listed that i didn't see listed as...

Thank's Handy. I took a break from the 2000 to recap my heathkit T-4 audio tracer and made up new lead's. Just so i can trace the audio path, Now when i test the audio path with the signal tracer, all is good and i hear my voice up to where the audio path goes into the board when i key the mike...

Thanks Handy Andy. I'm currently making a list to recap this radio and in the mean time I'm back to a tram D-201A tube socket replacement. As soon as i get the 2000 back on the bench, I'll get to checking out your suggestions

Further ohm testing the pin's 1 and 2 of the mike socket, something just didn't jive. I have a Cobra 138XLR in my collection and pulled the bottom cover and compared it to this 2000, The 138 has the shield going to the ccw terminal, Audio from the mike going to the center and the center...

Hey X Racer. No AM modulation, It has AM dead key watt's on watt meter, it's on frequency when monitoring through a freq counter, No SSB transmit (Since no modulation) and nothing going pot the pa jack to a speaker while in PA mode. No movement on the modulation meter, Mic work's on the mic...

Hey Guitar, Have all that and i'm currently going after the trace from the audio circuit off pin 1 to see where i'm loosing the signal.

3 year old post and i have no modulation in am, ssb or out the pa speaker in pa mode as well A question for Hand Andy, When you ohm test from pin 1 and pin 2 at the mic connector and the ohm's don't change form 1,038 ohm's no mater where the Dyna mike control is turned to. I never red what to do...

No marking ID on some of the tubes in it.

Thank's for the offer Brandon, I found a old 2950 in my donar pile and stole it outta there,

Here ya go JJ

I was curious if he ever found the L34 P/N ECRFZ0001 0.23uH coil he was needing, I'm in need of one as well. Barkett has the L33 for the 99V P/N ECRFZ10045 0.16uH core and wondered if he used the one that Barkett sold one, I guess i could contact Greg and see if his 0.16uH coil would work in...

Hey JJ. I can the next time i hear ya, Have a good day, Trapper 267 Colorado

The Hygain 4, 673 model had the vfo socket, Most of the time the non A or B version's had the socket

5 Year's ago, What happened PoDuck?????

757 Gave me this radio, I'm looking for info on it to, No receive at all, Not even static when adjusting the vol.