Signal Tracer Troubleshooting Repair and Modification
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- Опубліковано 2 лип 2016
- More electronic troubleshooting adventures! Join Paul in the Lab as he explains "in great detail" the circuitry inside a Heathkit T-3 signal tracer. Then Paul will discover and fix some design flaws. See how the Watt meter (eye tube) and noise tracer functions work.
Mr. Paul, what can I say except you produce the BEST videos I have ever encountered. Camera work A+, knowledge A+, explanations A+. You make other people's productions look like a pre-school finger painting.
Long term technician here. Now 70. You do a great job of explaining as you troubleshoot. I grew up with vacuum tubes and still love them if one can love something like that. I've taught many troubleshooting classes over the years and am always amazed at the looks I've seen from students when I bring a vacuum tube device in for them to diagnose and repair. The "deer in the headlights" types of expressions. You do an excellent job in your presentations and video work. I especially like your thoroughness to make a device work as well as it can, even if some mods are required. Keep the videos coming.
Hi Paul,
Paul - I've been continuously practicing electronic troubleshooting for 50+ years and I learn at least of a couple new tools and thoughtful insights - sometimes subtle, but always useful - with every video. And your even, unassuming demeanor and respect for the student are present throughout. Thanks and bravo!
Thanks a bunch Mr. Carlson. Having been around at the dawn of the transistor age as a teenager but also doing lots of vacuum tube radio and TV repairs after school, I truly appreciate your rigorous and back-checking diagnostic procedures. Lots of relaxing fun watching you do your thing.
I learned electronics in the mid to late 60's from hanging around a radio & TV repair shop. It was a 1-man shop, so I became his helper. He was an old head at fixing radios and televisions. In fact, other shops would often call on him for help when they came across a tough old dog. I learned a lot from him, and I was very blessed to be his helper. He was much like you Mr. Carlson in his ability to troubleshoot and explain how things worked. I guess that is just one of several reason I enjoy your videos. You give great detail and are very methodical. No doubt the younger folks and even older folks like me learn a considerable amount from your videos. There are very few if any who teach how to troubleshoot vacuum tube circuits today. Thank you.
I came on here 1hr 22 mins ago to watch a Meatloaf video but clicked on your channel and again just fantastic,never a wasted word is the way I describe your videos and you pass your knowledge on to other people better then anybody I have ever come across.Fantastic work.
Mr. Carlson, I continue to adore your videos. I'm understanding more about these circuits than I ever have before! Wonderful!
My bench looks as if it came out of the 1940's. I restore vintage tube radios and amps and other vintage electronics using all the test gear from the same era. When I sit down at my bench to work (play) it's as if I've been transported back in time to a 1940's radio repair shop. I find it very gratifying as well as escapist. It's a hobby I've done for nearly 40 years and still love it, as well as accumulating a collection of wonderful old radios. Nothing sounds like tubes, even in AM.
Wow! Guess I'm flabbergasted that a resister could cause an internal noise problem like you have found with the Heathkit T-3. But, there it is.
My biggest bring home with this video was the noisy resistor. I have read about and performed calculations for resistor noise but nothing to bring it out of the theoretical. Mind blown.
Your level of knowledge and the ease at which you explain your troubleshooting process boggles the mind. Keep up the excellent, excellent work.
Probably the best troubleshooting / repair video I have seen for ages.
Brilliant timing. I was cleaning that pot last night AND my audio is crackling too! Where’s my soldering iron and parts bin!! Man, I love this channel…and this hobby! Thank you.
The reason Heathkit used unusual tubes in their 1950s kits (particularly test equipment) is because they were WW2 surplus and Heathkit got them for almost nothing. The 12C8, 12SH7, 12A6 and 1629 were common WW2 surplus that weren't used in "civilian" electronics so there was little demand for them, and Heathkit got amazing bargains on carloads of them. As they used up their supply of WW2 tubes, they gradually changed over to more-common types.
I basically was taught electronics as a child by building Heathkits, Eico kits and Knight kits, et al,. I always read over and over again the engineer's circuit description notes as to how the circuit worked until I could begin to comprehend them. This lead to a lifetime career of over 45 years and still continuing as a broadcast tv maintenance technician. Your educational videos are really top notch and so much better than the Jam Handy Organisation videos or those dry government instructional videos I was forced to endure in school. Your theory explanations are geared to practicality and would be most welcome to newbies trying to learn about electronics. To this day I always get a thrill from opening and restoring a piece of antique vacuum tube electronic gear to give it useful life again while at the same time I can relive a very happy childhood in that process.
I wish I had this exceptional man looking over my shoulder as a teacher and I’m in my 60s trying to work on old equipment. Amazing man. Thanks for your helpful and pleasant demeanour.
Paul that was brilliant! I loved the way you explained the circuit and then did the mod to calm the voltage drop. But the noise troubleshooting was just out of this world. Big thumbs up my friend. You out did yourself on this one. I have an Heathkit IT-12. It quit on my last year. Man I miss it. Eye tube went bad. Will enjoy the next video on the SG and the series to follow. Working through a new series myself on the FT-101. I have 5 of them....Keep up the great work my friend.
Class act mate! Finds the spooky resistor and feeds it to the tester as desert. You crack me up sometimes. Love your work. Keep it coming.
My shop looks forward to your videos, we all have different backgrounds and levels of experience. Electronic repair is part of what we do. Suddenly BK, HP, Agilent, Stanford, and even Heathkit is showing up on our benches for fun experiments and things we can do for our customers. Keep up the great videos!