I very much appreciate you sharing your know-how & skill with us! 😊 Great information.
@daveogarf5 жыл бұрын
Oh, from your lips! The Internet is a total GODSEND to those of us seeking or sharing information! You may have been poking around, searching for the problem for months without that incredible step-by-step 'hint' that took you right to the solution! (Not demeaning your technical prowess, BTW).
@ElPasoTubeAmps5 жыл бұрын
Nice video and repair. I recently acquired a KWM-2A by Rockwell Collins (built in 1978) that looks and performs like it was never used. I did carefully go thru the cleaning process of tube sockets and switches and couldn't be happier with its performance. I have had Collins S-Line equipment since 1983 with minimal issues. I remember one issue several years ago with the 32S-1 which turned out to be a shorted capacitor on the screen of one of the 6U8's - I don't remember which one, and recently when the 2.1 KHz mechanical filter in the 32S-1 failed, but fortunately, I found a new one on Ebay and fixed it. Very nice to see that there are a few gentlemen like you that appreciate this equipment and have taken the time to post videos on it. Keep up the good work. You just may save a few of these magnificent old radios because of your efforts and videos. 73 WA4QGA
@Bleats_Sinodai5 жыл бұрын
Terry, I recommend you add sites like that to the Wayback Machine backlog. You can "snap" websites and they are added to their database, as a security backup in case the original website goes down, gets partially erased, or is deactivated. It's like getting a Xerox copy of a library book.
@MichaelLloyd5 жыл бұрын
I have a couple of S-line transmitter / receiver pairs. One set works and one has been stored in less than clean conditions so I haven't powered it up. Great to see you repairing one!
@TheRadioShop5 жыл бұрын
One of my favorite rigs to work on. Had a lot of these in the shop from basket cases to pristine. Good job on the neut cap replacement Terry. Super cool my friend.
@rciancia5 жыл бұрын
Terry, very cool. I never saw a cap like that before. When you turned the gain up it reminded me of the first note to the Beatles song Day Tripper - or in this case possible circuit breaker tripper. :) Well done Terry
@umajunkcollector5 жыл бұрын
I concur on the web and YT being so very helpful.
@superhet72815 жыл бұрын
Excellent, as always! After this Collins series I’d like to see you work on some of the Heathkit SB/HW SSB gear.
@d-labelectronics5 жыл бұрын
I have a SB-401 in the Q
@cheycasters5 жыл бұрын
Thats a crazy looking circuitry!!!
@DeadKoby5 жыл бұрын
I'm trying to assist the information community too! As are you! We're in this together trying to make the world a little smarter.
@domfilap84773 жыл бұрын
Great video. Unfortunately you have used the wrong trimmer cap. The one you have used is only rated at 600v, and will tend to arc on 28mhz - I know because I had the exact same one in my junk box. The correct one needs to be rated at 1200v.
@dhpbear25 жыл бұрын
Just from that beginning video of the circuitry, this looks like *Tektronix* quality!
@d-labelectronics5 жыл бұрын
Yes Sir, military quality
@robertcalkjr.83255 жыл бұрын
Thanks Terry.
@jandejong64985 жыл бұрын
Sir, if you drink wine, you never connect two or more high voltage wires in the wrong position?? [lol] from the Netherlands, Merry Christmas and a Happy New Year!
@robertjonasson25275 жыл бұрын
My Heathkit SB-401 uses an air variable neut cap..never had a problem.I don't know why Collins used those tiny variables in a high voltage RF circuit.
@domfilap84774 жыл бұрын
Hi Terry, Brilliant video - very informative! Just wondering, does the .001 have to be rated at 2Kv or would 1Kv be enough? Cheers.
@captlarry-35253 жыл бұрын
THIS IS WHY YOU NEED TO KEEP YOUR TRANSMITTER CLEAN ! DIRT COLLECTS MOISTURE AND MAKES AND ARC PATH.
@msaradio74555 жыл бұрын
I cant believe so many comments about the damn wine, lol!
@d-labelectronics5 жыл бұрын
Yep, veered off the main subject matter
@kd5ozy5 жыл бұрын
the first thing i do on these is redo the tube shield grounds. they cause a number of different problems
@d-labelectronics5 жыл бұрын
Thanks, I will take a look. Are you referring to the mechanical connections (screws/nuts) mounting the socket to chassis ?
@kd5ozy5 жыл бұрын
@@d-labelectronics Yes sir. I have had a few with af oscillations that just had poor grounding on the tube shields. It may not be, but that's the first place I look
@RobertKohut5 жыл бұрын
Nice!!
@umajunkcollector Жыл бұрын
So ehat ya think of a Collins after all, was it that good a rig?
@evascroll5 жыл бұрын
its there a way to neutralize with out oscilloscope?
@domfilap84773 жыл бұрын
Yes - just adjust till the plate dip and max power out coincide
@ashave91005 жыл бұрын
IT IS NOT CLEVER TO WORK ON HIGH VOLTAGE ELECTRONIC EQUIPMENT WHEN DRINKING- YOU MIGHT SPILL IT !
@SuperBuzzbomb5 жыл бұрын
Thats why he has it when he's done!
@amyluke45985 жыл бұрын
Leave off the wine. It doesn't add anything to your videos Harvey, KM4JA
@SuperBuzzbomb5 жыл бұрын
I actually enjoy seeing him with the wine. It tells me he enjoys what he's doing.