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- Видео 186
- Просмотров 565 202
glasstronic
Добавлен 13 дек 2007
Видео
Homebuilt monster de-soldering station
Просмотров 2186 лет назад
It's heavy. It's large. It's noisy. But it REALLY sucks.
A tribute to HAL: S/O/S SYMON resurection.
Просмотров 1736 лет назад
Really a test of a computer I designed that hasn't been powered-up in ten years (or so).
Thermite demo part 7 of n
Просмотров 656 лет назад
An approach to starting the thermite reaction. This one might work as well as magnesium ribbon or powder. What I'm after is a stable, reliable, non-toxic, predictable initiator. Criticism encouraged. ;-)
Homebrew electrolytic capacitor/full wave rectifier/half wave rectifier part 2 of 2
Просмотров 1686 лет назад
A demonstration of surface polarized aluminum in use as electrolytic capacitor and as electrolytic rectifier.
Homebrew electrolytic capacitor/full wave rectifier/half wave rectifier part 1 of 2
Просмотров 2516 лет назад
A demonstration of surface polarized aluminum in use as electrolytic capacitor and as electrolytic rectifier.
Description of a 1920's paper cone loudspeaker motor.
Просмотров 2616 лет назад
Description of a 1920's paper cone loudspeaker motor. . Here is a link to Jim's work I referred to: ruclips.net/video/VSowPo8dH5A/видео.html . Here is a link to a video showing a very similar sort of loudspeaker: ruclips.net/video/eghoj352HRk/видео.html
A rant about some youtube ads
Просмотров 2166 лет назад
RUclips needs to fix this most inconvenient problem that some ads are causing.
Homemade Stirling engine part 2 of 2
Просмотров 2,6 тыс.6 лет назад
I did a modification on her; that seems to have been an improvement. More torque, and the power cylinder self-lubricates, as well has less blow-by (it seals better). Here is part 1 of 2: ruclips.net/user/edit?video_referrer=watch&video_id=6YIWziU0mvc
A plumbing I go again
Просмотров 1006 лет назад
I put a gauge on a drain that had a trouble (obstruction). Easy fix, but interesting measurements taken for comparison.
Fender Frontman 10G and Mustang I "amplifier(s)" checkout and a simple fix.
Просмотров 5 тыс.6 лет назад
Fender Frontman 10G and Mustang I "amplifier(s)" checkout and a simple fix. These are solid state Fender branded practice cabinets. OK for noodlin' 'round a bit, but that's about all. The 10G worked as is, the Mustang didn't. Stupid simple reason why...
A firelight Halloween display preview.
Просмотров 446 лет назад
A firelight Halloween display preview.
Honeybees (and others) hoarding Sedum blossoms.
Просмотров 566 лет назад
Honeybees (and others) hoarding Sedum blossoms.
Homemade Stirling engine part 1 of 2
Просмотров 2,8 тыс.7 лет назад
Homemade Stirling engine part 1 of 2
Capacitor tester model NRI 112 demo part 4 of 4
Просмотров 3477 лет назад
Capacitor tester model NRI 112 demo part 4 of 4
Hobo wine prison wine inmate wine: don't knock it.
Просмотров 1987 лет назад
Hobo wine prison wine inmate wine: don't knock it.
Roof maintenence is noisy and rightly so.
Просмотров 408 лет назад
Roof maintenence is noisy and rightly so.
Easy decision , when something is already broke you really can hurt it .
i heard 90 min kassettes not ideal for four-tracks ... too much stress for the transport mechanism
Can't understand a word he says.
Thank you for the safety tips!
Although these switches seem antiquated, they worked very well The new electronic switching requires less space to operate. Both have their limitations, however the new electronic systems are more susceptible to line voltage spikes and sags. I worked with a private branch exchange of 200 lines of Strowger Switches while in the Navy. Worked very well unless you had a mechanical failure such as the wipers got hung up due to misalignment.
Running lean issue, I carburetor rebuild and a cleaner soak will fix it.
You took ages to say everything. I'm sorry but you just made it boring.
Cool you don't see many these anymore.
Could you please tell us what the name of this switch is?
Thankyou from the future! I just got my Porta Two back up and running from watching your videos.
Absolutly awful sounds
Mine is backing up along with the basement shower that never gets used and the drain outside
I’m having this same problem. Did you ever have a resolution?
great channel man i need a head base for a porta 1- do youy have any notion where i can get my hands on one? even a broken one? have you done a video putting the heads back on the adjustments needed fludder wow ect....
If you see them out in the yard can’t you just shoot them with a.22 caliber rifle?
That smoke has to be going somewhere like out another opening.
You are right. I have a bunch of those tester from 40s/50s that one makes the most sense
In all seriousness, thank you. You are making my job of restoring my own unit a breeze. We were a wonderful county and that era was our peak. Everything made then is great and is a national treasure. Thanks again.
These circuits are tough, they require a firm grasp of the obvious to fully understand. 😂
Just the facts sir please, as they said on Dragnet from that era. 😂
What a completely poitless video!!
what a completely useless comment
A local contractor installed these everywhere in my area when I was a kid. They were highly reliable, quite, and just worked. They were the go to amp for church lecturns where one or two mics were needed. There were plug in transformers for Low Z mics or the jumpers as show here for High Z. They were set up to add either a forth mic input or a magnetic phono preamp at the blanked up tube socket hole. I always saw them used with Altec horn and woofer combos of different types. Although I never saw one develope a filter cap problem, 550 or 600 volt caps would probably be a good idea. This amp has a very nice sound with music too, a pair would be a nice power amp for stereo if you have the room.
Ah! A Dukane amplifier fan! Every point you make is correct. Also worth noting is that they are build like tanks. Designed to operate 24-7-365. Yes! They make most excellent stereo high fi systems when paired or in quads. I happen to be a collector of them. I have 15 of them, most of them in storage. I use a quad of them for music and one or two for guitar use. You just can't beat 'em. Thanks for posting.
Can't beat those old Marlins
Been thinking about getting one of these, would you recommend it? Did yours need any work/mods when you got it?
It didn't need any work nor mods. The ONLY complaint I had with it is that it was quite heavy..
Most informative. Thank You. Ive just acquired one of these amps and there is not a lot of information on them on the web. Your discussion was excellent
Glass tronic iam glad that you got your zenith Trans oceanic portable shortwave receiver working
Glass tronic I have a zenith Trans oceanic shortwave portable receiver it was my uncle who is ded the zenith Trans oceanic works on some of the bands have no sound maybe when I get my ham license I will get fix then
Glass tronic your zenith Trans oceanic shortwave portable receiver is cool 😎 👌 👍
Glass tronic I like your utube videos 📹 ♥️
Glass tronic my hobbies are painting pictures 🖼 and listening to shortwave and ssb I have 5 shortwave receivers iam thinking about getting my ham license
Glass tronic you are good at restoring vintage shortwave receivers and alignment of vintage shortwave receivers
Glass tronic my hobbies are painting pictures 🖼 and listening to shortwave and ssb I have 5 shortwave receivers iam thinking about getting my ham license
Glass tronic you are good at restoring vintage shortwave receivers and alignment
Glass tronic I like your utube videos 📹 ♥️
Glass tronic iam thinking about getting my ham license
Glass tronic you are good at restoring vintage shortwave receivers and alignment of vintage shortwave receivers
I have others shortwave receivers l have the tecsun h 501x Mw lw fm stereo sw ssb 5band table top receiver
Glass tropical l have a zenith Trans oceanic it was my uncle it works
Please don't let this guy do anymore videos on this subject Dam!
Get to the damn point!!!
Hahahaha!
Not a expensive rebuild.
Can you repair my transoceanic tried different places nobody could repair mine watched your video on repairing. One let me know if you can repair mine. 😢
How does the switch know when one digit has ended and a new one has started?
It uses the difference in time delay between pulses, accomplished by specially designed relays that have a delay in armature movement as the coil is energized and de-energized,
@@glasstronic Thanks for clearing that up! My career was in data communications where we have convenient start and stop bits to sort out these things ...
We find that a lot of the early transistor radios were mostly outfitted with PNP germanium transistors. I don't know if that was because they were cheaper or if it was because they were the most plentiful at the time. That was a dead giveaway that the ground would be positive. Not 100% sure of when Zenith went to NPN transistors, but the Transoceanic 7000R was outfitted with NPNs, and the polarity of the ground was changed to negative voltage.
I recently picked up a 1000D on ebay for a good price. It needs some work.. It took some digging to find the right schematic. Although similar to the 1000 in a number of ways, the 1000D is wired differently in some sections. The worst part is the degradation of the outside of the case where the metal surfaces have bubbled and suffered from some corrosion.. It's almost deaf, but I can pick up one station on the BC band fairly clearly but at low volume. Interestingly connecting either of the bar antennas causes a lot of distortion.. Looking around inside it would seem that it's never been serviced. I look forward to the challenge of getting it working.
Hello, I'm a fan of your channel.Do any of your Dukane 460 videos address swapping the selenium rectifier in the bias circuit for a 1N007? I've done it but I can't dial in the dropping resistor. i'm a bit stuck. Cheers
A fairly easy fix: leave the existing resistors as the factory had them: R1 = 1K, R3 = 100K, R19 (both of them) = 68K. Cut the lead wire connection leading from the bias supply (R1-R3 junction) to the output tubes grid resistors (junction of both R19 grid resistors. Find a 10K potentiometer. Connect the center (the wiper) to the output tubes grid resistors (junction of both R19 grid resistors). Connect one side of the pot to the bias supply (R1-R3 junction). Connect the other side of the pot to ground. HAPPY BIASING!
Thank you! Can you share a zoomed image of your electronic blueprint? Maybe post on Imgur for us? Or a downloadable pdf?
Do their decomposing bodies stink up your house?
Damn. They sound like banging glass balls together 🤣
Thank you.
They are POSITIVE GROUND, REPEAT, POSITIVE GROUND CHASSIS!
yes! that is correct. They are positive ground. that's why I mentioned it in the video because it is an easy thing to miss.