This was fun and very interesting. Thanks for taking the time to make it. So many troubleshooting techniques are covered making this fun video a benefit to all!
Hey thanks for doing this video, it was fun to watch and see the huge capacitor's in the system, loved the constant rapidfire substitution methods. Lots of techniques contained in a relatively short video. I can't believe you used that large of a capacitor and it still worked and sounded good. Amazing.
I have the clock version of that model that uses the same chassis as the one featured in your video. all mine needed was the PIO capacitors replaced. mine still has the original filter capacitor which is still good. the only tube that was replaced on my radio was the 50EH5. the rest of the tube are the originals. for a Japanese radio, this model is a great performer.
They use those giant capacitors in power supplies in console video arcade games. They eliminate ripple to the logic boards I was an electronic.tech in the coin op business
@@arthureverett8220 They also use them in large Uninteruptible Power Supplies of hundreds of KVA rating. They're spectacular when they blow up, like a little stick of dynamite.
the master of trouble shooting, i love the way he just goes from one thing to another till he finds the trouble. shango makes the video. no matter what he is working on.
When I was at Apex Electronics in Sun Valley recently they had stacks of cartons of big caps like that. Recently I found a bigger one at an estate sale. It was a Gudeman oil cap the size of a toaster rated for 2500v. The estate sale guys had no idea what it was and sold it to me for $5. At another sale I passed on a giant variable air cap the size of microwave oven because it was just too heavy.
Output tubes with a high filament voltage (35/50C5, 50EH5, etc) should always be left in the tube tester for 5 minutes---had you done that, the 50EH5 would've showed short. These tubes are known for heater to cathode leakage once they warm up---I've received NOS tubes that had it right out of the box.
The air traffic in your videos never bothers me. I can still hear you fine over it. Maybe it's because I grew up in the path of DFW airport, I've grown numb to the sound of planes & helicopters, I dunno. Ha! Who needs batteries, just get you a big god-damned capacitor to run the thing off of. XD I realize it's relative to what it's being recorded on and played back through, but the FM sounded really good on it. I'm almost tempted to get it from you to use as is (cosmetically) at my Aunt's trailer in the country, but I'm keeping an eye out for an early transistor multi-band I can use out there. (it'd only be used for an hour or two a month, and in the mean time be sitting in a dampish old trailer anyway)
I've seen you convert tubes over to solid state on this channel such as that when you don't have them and you should put a rather transistor and resist around
I have a radio very similar to that admiral I bought it in 1964 and still works good I have a portable admiral stereo around the same time that still works good if you ask me admiral was a good brand
So how to the capacitor wired in the video to the ac line because I have a radio with a bad filter and I just wanna do testing to evaluate before I even touch it
Man that burnt doll takes me back, wayyyy back to 1977. I had just been transferred from Fort Meyer Va, where I had been serving with The Old Guard, to a Army Recruiting Station in Minnesota. At the time I had a 1963 Ford Econoline Van, the type with the engine between the front seats. My uncle, who is a mechanic by trade had owned the van before me, and had begun to make a camper out of it, he had completed the paneling and removed the little Ford six cylinder engine, replacing it with a Chevy 283, that old can could really go! When I got it, I found a nice set of leather bucket seats and installed in the old van, and headed back from South Dakota to DC. Well what he didn't tell me was that the carb on that engine could go to hell and when it did, it could spray the engine with raw gas. It did just that in Pennsylvania, just east of Summit while leaving a long tunnel on the PA Turnpike, at around 2AM, my engine caught fire. My two little children both below school age were in the back, sleeping on a bed I had built in to the van. When the carb let go, of course I lost power and pulled to the side. I could see the fire under the van in my rear view mirrors, so put out a 10-33 call on my CB radio both on channel 19 and channel 9, then bailed out and tore the rear doors off the van so I could get my kids out (it was padlocked on the inside!) Within three minutes, I had a State Trooper and State maintenance Truck on the scene, they put out the fire, the trooper put my kids in his car to stay warm as it was colder then a witches tit out that night, then after arranging for my van to be towed into Summit, he gave us a ride into the town to a motel where we holed up for a few days before buying a junker pickup to drive from Penn. to South Dakota. Travel is so much fun, well it was back then, not so sure now days with Covid and now the horror of a Democratic President, and perhaps both houses of Congress under their power, I fear the worse. I have cleaned both my old .45 ACP Pistols, and my old .22, the only rifle I still have. I put out the word to friends that I am seeking a 30-30 rifle because I am quite sure they will not be confiscated by BIden and his ilk after taking office. The old Winchesters and Marlins can put out quit a bit of firepower with a modertly powerful 30 caliber round. Surely not the rifle I trained with and carried in Vietnam, but a deadly weapon at a decent range with quite a few rounds in that tube, and the lever action is quicker and easier to reload while keeping your eye on the target as well. OH the burned doll, my daughter was only 5 years old, her favorite doll had been riding next to the engine compartment in the old Van, she (the doll) was seriously burned on her face, but my daughter insisted on keeping her, she wore bandages for years. She was injured Cathy Doll and received lots of love and attention.
50EH5 is a power pentode, 50C5 is a beam power tube. Same pin connections, and except for the plate load they are mostly interchangeable. 50EH5 probably has lower harmonic distortion, but with a 2 x nothing speaker who gives a crap.
Get it in safe working order electrical, leave the appearance as is then sell it on eBay as dessart art, price it crazy high and I'm sure some dumb rich person will buy it!
why does this guy keep drawling "lets fit a new capacitor" and then say "something's shorting". Then he replaces the main power electrolytics with something the size of his thumb, that will at sometime explode?
Four dead tubes. Must be a new record. I can tell from the squeak in your voice you were as shocked as me at the +18V on the grid of the 50EH5. You don't often get a bad valve. Is the coupling capacitor still leaky? It is hard to tell without leaving your DMM monitoring the grid voltage. That radio is an absolute turd. No surprise that it is going to the dump. You have had some fun with it, so it didn't die for nothing.
100 years for us Americans to outdo and undo the damage done by this administration in the Biden administration in this 4 years that's the sad part of our world today
