EF Johnson Valiant Ham radio tube transmitter UN-mod & repair Lots of Kobbling many hours of work

[@plumbersnightmare2354]

I used to run my friend's Valiant in the early 1970's on the CB band. I later became a ham and have now owned that Valiant for over 25 years; unfortunately, it was completely non-functional and remained so for all these years. Seeing this video, I dusted it off and started trouble shooting it. I did a re-cap and fired it up and found the audio circuit is dead, but it does 120 watts of RF into a dummy load. I removed a couple of old mods and found the .202 ohm resistor replaced with a piece of wire! Other resistors are out of spec and have been ordered--including the Chernobyl resistor replacement. It will be good to have this old rig up and running again. Thank you D-Lab for the inspiration!

[@jandejong6498]

Sir, behind you there is a very Famous painting from the artist ESCHER! Greetings from me in the Netherlands.

[@arniep740]

If you look at other of his videos, you will see many Eschers adorning his laboratory. My favorite artist, although I think Escher did not consider himself an artist.

[@fixyournet]

Hey Brother! Your work is wicked!!! I love your Super Bowl, LoL! This is Tony from Brooklyn! You visited me once for a Mil Station, I hope ya got it all fixed by now! Still got a ton of Valiants I can't seem to part with them LoL! Love watching you work brother! Take care and God Bless!!

[@drawbridge611]

Well done. I love seeing those old soldiers get a second life. I think I heard that unit breathe a sigh of relief.

[@royramdeen8864]

Man you are awesome.. when i look at this, all I see is sand.. thanks for the education and sharing..

[@rohnkd4hct260]

Love to see those classic radios live on.

[@mackfisher4487]

Nice T-shirt, the point-to-point wiring on the Johnsons certainly makes it relatively easy to work on compared to newer rigs. Haven't seen any shots with your four-legged friend a good Labrador is great for keeping tower watered. 73

[@mikebracey8832]

Always makes my day to find that you've uploaded another radio repair video. Thanks Terry, good job.

[@alexdeleon7135]

Wow! What a dizzying series of corrective issues. I am most impressed with your diagnostic ability with these ham units. Once you removed the overbearing modifications, restored the circuit to stock, and used well disciplined testing to identify any other issues, it was a matter of deduction to sort the remaining problem(s). Well done!

[@W3KW]

Awesome rig. Awesome shirt. I want one of each!

[@mikefinn2101]

Your the best on Johnson equipment keep it going love to watch them. One day I will find a valient.

[@skyboy2410]

Terry you are an awesome Tech! I have learned so much from your video's.

[@chumpchange1846]

"They are the king, and they deserve to live on." Oh yeah!

[@frankjankovich3512]

Great job terry

[@Greatlefty300]

Always learn something on every video...thanks Terry...

[@douro20]

I like the old fluorescent lighting. At least he didn't put screws into the side of a tuned cavity. That could had caused all kinds of havoc to occur.

[@prestonburton8504]

Thank you sir! Awesome Video! We must remember that tubes have a better chance of surviving than transistor and integrated circuits (especially sub micron scale integration) in 'certain situations'! But yes, a bit heavy to carry in ones backpack. I'm collecting now and referencing your videos! And I'm licensed.

[@ericdee6802]

That Johnson sounds crispy!

[@billbaxter2914]

Very nice job Terry.

[@dhpbear2]

You should paint this unit yellow! :) Those three 4.7K resistors opening up simultaneously has to be the *strangest* failure-mode yet!

[@arniep740]

Great job and great video! Thanks so much!

[@greggaieck4808]

D lab Electronics you are good at electronics

[@twoheart7813]

A great job on the rig & the video.

[@ne2i]

Any time I see Johnson Viking I click. Awesome job!

[@nathkrupa3463]

Great design nice information shared thanks sir.

[@hayseed5467]

Excellent! 👍

[@RaccoonsRadioRanch]

Nice radio ... I love tube equipment

[@benrose7534]

Really nice

[@tomward8339]

Awesome video!

[@greggaieck4808]

D lab Electronics I like your utube videos

[@larrybeers8935]

Wow - Great Job

[@douro20]

Can't put solid-state rectifiers in these?

[@redneckways1933]

Can you make a video on America five radio and show how the filters cans can be replaced? I am working on a Zenith Universal I think 600 a d I pop thr 1LB4 tube and the reaction also made a big flash bit I think it will still work a little longer.i have the filter can out but I'm stumped on what to replace it with when I make my order for a new tube and the caps.

[@woodsontr]

Thanks for the video. Dr N4PXB

[@zenithtuberadio]

I have what I think is the same radio. The only difference I can tell is the left side analog meter. Would I still go about repairing it the same way as you're showing? Thanks

[@wa4aos]

Great job. Thanks for sharing your work. 73 de WA4AOS

[@Damaraja]

Aloha, Terry. I too live in Hawaii. Does your brother happen to know about audio electronics (esp. gtr amps)? If so, I have some gear I’d love to get looked at. Either way, thanks for another great vid. 🤙

[@bell1684]

Love The Shirt

[@williambarnes2846]

Sorry to drop this here, I usually watch KZbin on TV. I can get a deal on an acoustic amp, what would go into converting it to sound more like an electric guitar amp? Is it just a matter of a few resistors and caps? Thank you.

[@paulomeyer3900]

Hmmm… I see that you like MC Escher!!!

[@tenminutetokyo2643]

You need a Pablo Elise table lamp.

[@Davidjb37721]

I like your shirt

[@glennmiskulin5379]

I am the guy from Milwaukee my Valiant needs work also I will pay

[@d-labelectronics]

Send me a direct e-mail & we can sort the details

[@greggaieck4808]

D lab Electronics the owner vintage ham radio tube ef johnson valiant transmitter is cool