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@@midgoog2 I never thought of using an oscilloscope probe for a vtvm but I guess if you use it on x 1 and not x 10, you'd be OK. In this Heathkit though, the probe must have a 1 meg resistor in series with it or the readings will be off.

@@DAVIDGREGORYKERR You mean the old hearing aid tubes? Would make for an interesting project.

@@felipegacitua4451 In a situation like this where the problem is intermittent operation, and you,'ve used cold spray and a hair drier on the solid state components and also if cans, the chances are over 90% that it's a cold solder joint on the power rails. The particular joint where the problem is is almost impossible to identify. Re-spldering all of them is the only surefire way to correct the problem.

Me too!

@@nikolabondzic8022 What part can't you see?

If you have a schematic of the radio, you will notice that one side of the signal path from the output of the audio transformer goes through the headphone jack. Over time these contacts have become oxidized and will no longer allow the signal to go to the speaker. When you said that you had sound coming out of the speaker, that was the clincher, I had the same problem. Get a can of contact cleaner and spray the contacts of the headphone jack and re-solder the connections to the jack, as they can become corroded also. If you have a set of headphones with that size of jack, work the jack by plugging in the headphones in and out many times once you've sprayed it with de-oxit or another contact cleaner, that will help clean the contacts. If that doesn't fix the problem, just bypass the headphone jack altogether as you will probably never use headphones. Hope these suggestions help.

Here is a link to where you can download the schematic: www.radiomuseum.org/r/zenith_transoceanic_g500_ch5g40.html

Yes, it was just unusual in the sense that it wasn't in a can.

Durability, aluminum foil would work well from a signal blocking point of view, but it doesn't flex well in a pocket. It would need to be stuck on a rigid frame which could be done, but would be awkward in a pocket. For the type of cellphone I am using, I deemed this to be the best choice.

@@donepearce When you turn off your cellphone, that doesn't turn it off completely.

@FranksPlace-jk7pj the radio is completely off. All that remains active is the switch polling.

​@@donepearce I was under the impression that by law, all cellphones had a chip that responded to being pinged in case of emergency regardless of whether the cellphone is on or off.

@FranksPlace-jk7pj no. They have to be able to make an emergency call without a valid SIM card.

@@johnsampson1096 If you live in North America, there's still some am music stations out there, using a passive booster, I'm able to get a few. They're usually smaller town stations in the graveyard frequencies.

@@DiscoverEngland-ln7lj I'll see what I can do for you.

Theres a lot of evidence that cellphone radiation is bad for you, people usually have wifi, data and bluetooth on at all times and they keep the phone in their pockets. This rf shielded bag helps protect your soft tissues and internal organs from unnecessary radiation.

I think if they made that radio today with the various real metal parts, it would be very expensive.

@@ssrrocks22 I've been dismantling radios that I couldn't fix since the over the years and I still have the parts. You can purchase pnp germanium transistors from ukraine or old stock on ebay.

I did.

@@jeffreyhickman3871 All the best of the season to you and your family also.

📻🎬🎙️📽️🎦📻🎫🎙️🎬📽️

Glad you liked it!

Glad you enjoyed it

@@richardbrobeck2384 Yours must be a rare one.

Check the voltage regulator, diodes and resistors in the power supply section for any damage or faults. Also, verify that the wiring and connections are secure and not causing a short circuit. Use a multimeter to trace the voltage drop.

@@vintagetransistorRadio.Radio.h I don't have a PDF copy but the title of the book is Junior Electronics and Radio Experiments, By the editors of Elementary Electronics Magazine.

@FranksPlace-jk7pj thanks for sharing. ..Take care from India 🇮🇳

@@Steven-re7xt Sometimes they have to work together LOL

@@Steven-re7xt old laptops have really interesting speakers also.

@@oldradiotvsc9836 The longest they fly is Vancouver to Nanaimo, about 36 miles each way over water.

At the time I did that video, I just used the radio as a non-working prop with the music playing in the background. In a later video, I repaired the radio, and it sounds very nice. I sure wish we had an am oldies station here in Vancouver, all the am stations are ethnic, sports or talk. In my latest video, I,very made a booster that allows me to get distant oldies stations at night.

If you are looking for a great oldies station, this is one of my favorites. Great 60's and 70's format. player.amperwave.net/2244

@@stanleycostello9610 I believe the one you had takes a regular 9 volt battery.

My pleasure!

@@torau5817 I'm sure it could be done. I don't have a printer.

If you look at it again, you'll notice that I put a correction in the visuals and said that it was around 2 MHz .

Yes, regenerative radios are very sensitive.

@@sondrayork6317 Since the tubes are on the top of the chassis, they don't get too hot because they aren't enclosed.

@@sondrayork6317 Since the radio doesn't have an internal IF oscillator, there's no frequency to track. However, if you have an RF oscillator nearby with a digital readout, you can tune in a station, turn the oscillator to that same frequency and read it that way. I've been doing it that way and it works quite well.

True, for a permanent restoration, the old ones should be removed.

​​​@@FranksPlace-jk7pjTHE **EXTREMELY HIGH** RESOLUTION OF YOUR VIDEO ALMOST ROASTED MY SMART TV. I HAVE NEVER EVER SEEN SUCH DETAIL AND SHARPNESS IN A RUclips VIDEO UNTIL NOW; YOU MUST HAVE A 32K VIDEO CAMERA FOR YOUR VIDEOS. **JESUS FUCKING CHRYSLER!!**

@@bellytripper-nh8oxSorry, I hope it didn't burn your pixels too much.

@@edpaparo9916 Actually, I find I have more patience with this sort of thing now than when I was a kid. When I was a kid it was hard to focus on one thing for a week like making an hour long video. There were too many diversions, plus school. Now. No problem.