Great, I struggle with IF transformers, have rewound but to get the exact combination is difficult.

Like to learn your first amplifier in detail. Looks very professional.

Why didnt you add a choke and pi filtering on filament line

nice design much more reliable

I mean cmon - you jump from unstained to applying decos......

Thanks

Really nice video. Question: wouldn't you get way higher Q factor if you use a multi-stranded wire like they did very old but high performance radios? Tnx.

What about a notch filter.

Very boring Eddy

Does it not have a back cover?

Great video. Im having a "no osc" prob with a philco 37-84 I'll pull it back out and study it some more

Damn lip Smacker! Smack Smack, Sight Sight so tired, so tired, Smack Lip!!!!

This is absolutely fantastic. Thank You! I have become a subscriber.

Takes a lotta work, but maybe it does kills some noise in the radio.

Very nice job. Do you have a source for dial glasses if you get a job where a repplacement is required?

Not a restoration puttings new capacitors in old shell. Do it right buy some Russian pio capacitors there 1 of best paper capacitors ever made. Or buy some foil tape thats conductive and thin waxy paper contact cement beeswax parafarrin wax and solder make own capacitors oh and cardboard sleeves or metal sleeves tubes. Going to try to make my own I bought all the stuff.

Removing the asbestos would have been the very first thing I would have done, rather than handling it over and over again, and the grill cloth!

I wonder how many Sheckles it cost to buy those deckles?

I have been thinking about this for some time. You have proven my idea. Thanks to proving me right and thanks for a great video.

Capable of quite intense bass!

Edddyyy... where are you?? Lookin' so good...

very nice, especially pico mem

스티커는 어디서 구할 수 있나요.

I don't remember you mentioning the component values anywhere in the video. Any chance you could post them?

Nice job.. especially with the decals being that it's such a delicate job... I'm just wondering if l should put the lacquer on last and over the decals.

Not much info in this video...by the way you can not use a coil with a lower resonnance frequency than the if frequency.

Redoing the IF cans for a SMD problem is too long. Just change both caps for 100pF.

So you couple two inductors at a fixed distance and tune them with a variable capacitor to create the IF transformers rather than having fixed capacitors and tuning the transformer coils by adjusting the ferrite core? Is there anywhere you can point me to or any books you can suggest for descriptions or formulae to calculate all of this? or is it just something you test and characterize by trial and error? Regardless, color me impressed! Thanks for the video! Edit: I only ask because I'm currently trying to make a radio receiver from the various bits parts and trash I have around and most of my previous knowledge is tube related but I'm trying to use transistors, and those tiny IF cans are hard to come by these days without ripping apart old walkmans. I'm loathe to use more modern IC designs because it starts to become an incomprehensible black box which isn't so great for actually learning things.

It is unfair! You just fake it with modern capacitors XD

Excellent that you went to the full effort needed to replace bad IF’s 🤓

Howdy. Quite ambitious to build one's own IF cans. In my super het. experimens I have settled for an easier way. I use two inductors and two varcap.s. in a dual series resonant lineup. To interconnect the resont circuits I use a cercap.. of suitable values to get desired tightness of coupling. If tight coupling is desired one may use a toroid core with two windings. Regards.

Couldn't get past the 10 minute mark. Too much camera movement.

I think easy way - all oneband ( AM MW ) radio's repair to TRF circuit. :) But idea is good - make modern IF transformers from fixed inductor coils and trim caps.

Ok I am sorry but your explanation is very confusing. You keep changing your ground descriptions referring to earth ground , circuit ground and earth ground , but you never state which one id B- ground.

Yes restore it.

Deck ills Vs Dee cals LoL

No, a license was just a way to collect taxes for the Dept. of Transport.

Don't eat the asbestos! Paint it down with a heavy coat of paint or varnish. Asbestos is not immediately toxic. You have to breath in a lot of it to cause lung damage in your old age. You can relax now.

First, for handling the wet decals you need a pair of needle point tweezers. You should create a template that has wider openings and tape it to the cabinet. You can create and print it from a mechanical drawing program on your computer or create it on a quadrille pad sheet or mechanical drawing vellum if you can still find it. Place all of the wet decals in place quickly first and then squeegee them down lightly so they don't move before removing your template. Remove the template and then do a final light squeegeeing.

Would it work better if the inductors were on the same axis?

None of the AA5 :radios were worth a dam.

Excellent work 👍👏👏. I enjoyed and learned from this video. Thank you for taking your valuable time to make this video. Have a great day. Regards, JZ from Florida USA

Ty.. very helpful for me. Any idea what might cause motorboating when the radio is first turned on.. lasts about 30 seconds.. then goes away?

What a fantastic project and a lot of great work. You made this fun to watch. Have you ever considered selling these boards as a kit? Regards, Kelly

It's sad that people today don't recognize the value and beauty of gems like this and don't want to pay what they are worth. Such beautiful work!

I'd be interested in a kit with the pcbs, capacitors, inductors and the 3D printed base as I restore a lot of these tube radios.

Sub I like the way you explain things and your ideas. Plus you sound like Jordan Peterson and he's smart also.

Excellent idea no matter who thought of it. The inductor spacing idea is very elegant. Why not make the base out of stacked PCB's? For those who don't have a 3d printer. Maybe make the traces for the trimmer caps a little longer so that they can be soldered in easier. I am not knocking anything. I am very impressed.

OK.. good video but you need to learn how to pronounce decals. Drove me freaking crazy!

Saw a 3314 device on eBay with a similiar issue. I looked after some schematics like the sheets you used, but I was not able to find any schematics. Just operation and service manual. But no schematics. Would you be so kind to send me the HP schematics you used? Or do you have a link? Thank you in advance...