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here's a snip of the schematic for anyone wanting to play along. This is for the 69 base. This shows that VR12 is for both pre-driver and driver, and VR10 is for both finals. so it would seem that it's correct to set each of them for 100mA above quiescent current, but Nomad has me...

here ya go! https://www.worldwidedx.com/threads/oh-no-mr-bill-rci2995dx-shorted-q66.265942/#post-811267 as always thank you to NomadRadio for these great tutorials! LC

if the AM deadkey wattage seems very high, and the radio won't modulate, the AM regulator is probably blown. its the big transistor bolted to the right side of the chassis in the back (Q66). unsolder its legs from the PC board and check it using a transistor checker or a DVM. if you find Q66...

right at the beginning of that video, he shows the metal plate on the back of the motor, then he takes the cover off of the new motor to show the gears. that silver metal plate on the original motor is notorious for backing out enough for those two gears to lose good contact. re-seating that...

just so it gets mentioned, you should know how to discharge the HV caps before doing any work on a tube radio. just because its unplugged doesn't mean its safe. you should definitely remove the tubes before cleaning the chassis. as for cleaning the pots and switches, yes using something like...

ive seen the channel encoder on these things go bad and cause strange problems like this. they use a very substandard encoder on these radios, and some users just spin them like they are a VFO and can wear them out. still just a guess though. if you want to try a replacement, there is a place...

yeah that was a bit confusing, as i looked up the mod and it did say it's R1087 that needs to be paralleled instead of R1082 as you originally posted. im not sure what resistor you were holding that 4.7K above in your pic but it was definitely a 1K resistor. If it is indeed that 22K resistor...

i would start in the low 600's. Fahrenheit of course. you're going to end up moving that surface mount resistor i can almost guarantee you, so you'd be better off removing it and just putting the equivalent value part in it's place. it looks like the chip resistor is a 1K, and if it is then...

nice! glad you got it working. now it's time to start modding it until it doesn't work anymore LOL. LC

theres a trimmer resistor back near that big audio transformer, i believe it is VR3, that sets where the meter sits when you deadkey the mic. this is only ever a relative reading so you really can't mess it up. just make a note of where that trimmer was so you can put it back at least close to...

looks like that article on Simon's page is from 2020? This thing looks heavy as hell and would require a very beefy guying system. LC

hurricane 145, when you take the covers off the radio, unsolder the two wires that go to the meter. now get your DMM and set it to the diode test function. put the leads on the meter tabs and it should slam the meter over to the right side. if it does, then the meter itself is probably ok...

Do you know whether he measured the primary or the secondary of the coil? some of these coils have both and only one side is used. also, with the ferrite slug, the value will vary depending on it's position. Even if you have all that right, there is more to a tuning coil than just its value in...

this is going to be a difficult part to track down. you're not really going to find any listed value, but the coil you are looking for is an LB-209. It is for the 16mhz local oscillator circuit, and tunes the LSB section. it also happens to be the same coil as L30 in your radio, so if you have...

thanks Brandon, not sure how i misunderstood that you swept the freq range LOL! its my friday and its been a hell of a week, yeah lets go with that. i'll be sure to check out their site. thank you. LC

hey Brandon, first, very cool! i need to get circuit lab! can you try using a 400Hz tone instead of a 1K tone and show those results? the reason i ask is because of something i've always noticed about this chassis when doing the alignment. the PEP output of the radio seems quite a bit...

My radio addiction started when i was about 8 years old, which would have been around 1982. I spent a lot of time in our garage replacing bike chains and splitting my dad's hardwood collection with 16 penny nails. (i was trying to build an airplane lol). He had a radio in there that had more...

Cable Guy if i understand what you're asking correctly, i believe that circle indicates the body of a vertically mounted resistor and the line is the lead coming off the top. LC

well all i can do is help add to the confusion. here is a PCB layout from the service manual for the TRC-449 that Nomad provided to CBtricks (as always thank you nomad). looks like the top resistor holes have nothing, the two below it have resistors installed, and the diode marking has a...

well there's always the Alabama Echo Box. It's a long standing CB tradition in some areas of the country. It is very simple to build! All you need is a metal bucket or trash can that will fit over your head. place the bucket over your head, put your mic inside the bucket with you and VOILA! LC