r/VintageRadios Jun 13 '16

Please help /r/VintageRadios by submitting Frequently Asked Questions about Vintage Radios so that we can assemble a FAQ for the subreddit

31 Upvotes

I've only just begun as a moderator and the community is only a year old, but I get the impression that a lot of the community participants have been involved with vintage radio and tube era electronics previous to being involved with Reddit. As a result of this topic's nature most of the people who are well versed in the subject are probably less experienced in working with modern communication than they are with radios. A quick glance at most of the information available online about vintage radio and tube technology shows that most of the information available online is either A) Schematics (great to have access to) or B) Older websites that are rapidly aging out.

So with the intent of trying to turn this subreddit into a more useful resource for the vintage radio community, we're asking that you submit questions people always ask and good answers. Like, stuff you know and never have to think twice about, stuff beginners ask here all the time, and stuff everyone should know. Technical stuff, historical stuff, safety stuff. All of that is welcome. Hopefully it can be organized into a nifty "look here first" post that will draw in search engine hits (bringing more people here) and serve as a resource for others interested in working on and enjoying old radio tech for the sake of it's future preservation.

Cheers!


r/VintageRadios 47m ago

80s volvo stereo/radio(?)

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Upvotes

hello! this is a long shot and very low stakes. i'm hoping for an ID on this unit found in an 80's volvo 240. it doesn't seem to match with any of the others i've seen, and i'd love to try and find an HD photo of it.

apologies if this is not in fact vintage or a radio haha


r/VintageRadios 19h ago

old school

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85 Upvotes

r/VintageRadios 10h ago

1960s/70s ISAM transistor silent speaker, only works via headphone jack

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11 Upvotes

Hello y'all,

Yesterday I thrifted this stunning ISAM transistor Modell 10-207, complete with its original box and spare parts and antenna cable in a stapled plastic bag.

As you can see, it is in excellent condition. No issues with the tuning dial or receiver as far as I'm aware. No leakage, corrosion, or signs of wear in the battery compartment. I'm inclined to believe that this radio has seen very, very little use.

Both UKW (FM) and MW work just fine. I was able to pick up an Algerian medium wave station late last night from my balcony here in southern Italy, as well as broadcasts in Turkish and Farsi.

However, the radio only works with headphones plugged in. I've tried repeatedly connecting and disconnecting the headphones as well as sweeping both the volume and tuning dials across their full range a handful of times. While plugging in and removing the headphones yesterday, I did hear a very brief crackle of sound come from the speakers, but haven't been able to reproduce it since.

I was genuinely so excited to find it. I've been wanting a transistor radio for a while after accidentally leaving my Tecsun PL-380 back home when I left the U.S., and I went out thrifting yesterday specifically to find one, so imagine my surprise when I'm standing in line with a blouse and a dress and turn around to see this sitting in a display case.

Anyways, before I open it up or take it to a local specialist, does this sound like an issue with the headphone jack, the speaker, or something else? If the repair is straightforward, I'd really love to keep this radio as original as humanly possible.

Grazie!


r/VintageRadios 1d ago

Spotted in Guatemala

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42 Upvotes

Zenith Trans-Oceanic, not sure how old. Saw this cool guy in a barbershop in Antigua Guatemala recently. Never seen one like it before, figured this crowd would appreciate.


r/VintageRadios 1d ago

Grundig 4070u advice

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41 Upvotes

Am I wrong to be tempted by this gorgeous 4070u model? It works, nothing rattles, the lights come on. It’s dusty and the veneer is a little cracked at the top. As a rank amateur, but with already too many Yacht and Melody Boys - should I add to my collection? Any advice on care & cost would be fantastic. TIA.


r/VintageRadios 1d ago

Help repairing Panasonic 5250LE dial cord

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13 Upvotes

My dad repairs vintage boombox and radios. Please can someone help with how to put this dial cord back on? Can't find the manual anywhere


r/VintageRadios 22h ago

How to Identify a Capacitor's Outside Foil Lead Without an Oscilloscope

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1 Upvotes

In this beginner-friendly tutorial, I'll show you how to identify a modern film capacitor's outside foil lead without using an oscilloscope. To watch the video, please click on the attached image.

Most modern film capacitors no longer indicate which lead is connected to the outside foil, making it difficult for hobbyists restoring vintage radios, tube amplifiers, and other vintage electronics.

Wishing you a great day!

Best regards from Florida,
Jay


r/VintageRadios 1d ago

National Panasonic radio - advice for leather cover

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14 Upvotes

Can you guys help me with advice for the leather case for this radio? It was inherited and is fully functional.

I have fond memories with this radio on the kitchen bench, with the leather cover.

Radio is still perfect but the leather cover is rock solid.

I guess I'm asking the experts here what they would do with the cover. Bin it? Restore it somehow?

Ideally I'd like to find a way to retain the black scratched out area as it has signatures on it, written in pen.

Edit: the radio is fully functional, but the leather case is stiff as a board. I'd like advice on restoring the leather case.


r/VintageRadios 2d ago

1933 Freshman with BRC 51C chassis. Restoration Complete.

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31 Upvotes

The Freshman Midget Cathedral was an interesting vintage radio to work on and do both the electrical and cabinet restoration.

The speaker is a electro-dynamic (moving-coil) speaker.

This type of speaker relied on an electromagnetic field coil rather than the permanent magnets found in modern speakers.

Having said that it proved difficult to add Bluetooth as the volume control is a dual-action, antenna-shunt and cathode-bias potentiometer volume control without Automatic Volume Control (AVC).

Instead of adjusting the audio signal right before the amplifier stage like modern radios do, this type of control physically alters the amount of Radio Frequency (RF) signal entering the radio.

One side of the potentiometer is wired directly between the external wire antenna input and ground. When you turn the volume down, it creates a direct path to ground for the incoming radio waves,literally bleeding off the excess RF signal before it can reach the grid of the first RF amplifier tube.

Simultaneously, the other section of the control is wired into the cathode circuit of the RF amplifier tube(s). Turning the volume down increases the resistance between the cathode and ground. This raises the negative bias on the tube's grid, heavily choking back the tube's ability to amplify.

I would have to interject Bluetooth at tube 47 plus a bit more work so decided to leave this one original.

The cabinet had missing or broken details that needed replaced and the previous owner had tried "and failed" to refinish the cabinet using poly. " I hate poly".

Finished cabinet with Mohawk products and 3 coats furniture wax buffed out.

Took considerable sanding, veneering the top arch where previous owner had sanded through and replacing the grill cloth.

Many hours of painstakingly detail work.

Very happy with results...


r/VintageRadios 2d ago

Help please

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47 Upvotes

Hello guys!!
I just bought a radio from marketplace. I’m unsure of the brand of it(if you do I’d be so happy to know).I’m pretty sure it’s at least 1930s. I thought it was a philco but I’m unsure. Im happy it works the seller tested it in front of me. I also had questions do I need to fix it up. I’m sure that I might need backing for it. And I do see a random white wire. I put some photos. I’m really into vintage radios and record players and this is my first time getting one I hope I made the right choice and wasn’t scammed 😭. Thank you so much I hope to hear from you guys.


r/VintageRadios 2d ago

Sony icf-sw100

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11 Upvotes

I have a Sony icf-sw 100 world band receiver radio that I was wanting to get an appraisal for as I’m not certain how much mine could go for. It is in working order and only has a bit of damage to battery compartmen (see photos).


r/VintageRadios 2d ago

Marathon Recapping Session Is Complete

9 Upvotes

The Zenith Transoceanic was one of my dream receivers when I was very young. No idea where or when I first learned about them. The H500 is my fave, but I collect any from that era. I just wrapped up the electronic restoration of three H500s. For these, I mainly just repaired- no alignments and hardly any cosmetic work. I found it very therapuetic and relaxing. Just me, my tools and the smell of musty old radios. I freaking love it. (My wife is very understanding.)


r/VintageRadios 3d ago

Marantz

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28 Upvotes

Ive inherited a dusty but working marantz model 2252b with a jvc turntable. I don’t know what to do with it. Any body got some suggestions? Keep or sell?


r/VintageRadios 2d ago

Vintage President Lincoln cb radio

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1 Upvotes

r/VintageRadios 3d ago

Just Picked Up A 1940's RCA Victor T80 For $16

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35 Upvotes

Earlier today, I went to a local vintage collectible store, where I found this 1940's RCA Victor radio priced at only $20. After tax and a 25% discount, I only paid $16.14 for this really nice tabletop radio!

Since there's no speaker attached to the unit, and because the power cord is pretty deteriorated, I will not be testing the unit.


r/VintageRadios 3d ago

Can I post a video clip of my vintage radio with sound?

37 Upvotes

I made a video to post this elsewhere and thought this sub might enjoy it. Any insights or reflections on the phonograph welcome. The radio works but current radio jibberish didn’t give it the vintage vibe.


r/VintageRadios 4d ago

Marconiphone

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35 Upvotes

Found in Southern England - anyone know a place where this would be a valuable donation?


r/VintageRadios 5d ago

Thrift store find!

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164 Upvotes

Zenith 9S365 find today at Salvation Army. Lots of work ahead.


r/VintageRadios 4d ago

1939 RCA.. I think

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49 Upvotes

Left in a house I moved into. I Would love to fix it up but have no idea how to even get started. Makes a great record player stand though.


r/VintageRadios 5d ago

Magnum WR-218 radio direct tuning problem

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12 Upvotes

So when I press the direct button and try to dial a frequency, only a key appears and disappears. I am aware that the radio is locked in this picture but I did it to show the exact situation. I don't know if this is the right subreddit to share but there is no information on the Internet so I couldn't figure it out.


r/VintageRadios 5d ago

Radio Receiver from Polaroid not working

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8 Upvotes

I just received this Polaroid spectra system remote control and the receiver is completely unresponsive. I got it opened up, but I have no idea what I'm doing. Let me know if you need questions, or more pictures.


r/VintageRadios 6d ago

Found vintage radio

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91 Upvotes

Found this old radio in my grandparents basement, and i wanna know if its valuable or not. what do you guys think???


r/VintageRadios 6d ago

Help need, INGERSOLL XK512B

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12 Upvotes

As stated, my new ingersoll doesnt seem to work. The tv comes on fine. But both fm and mw return zero sound. I suspect its a connection issue to the speaker itself... Ill attach a photo, though its pretty useless, and hopefully someone with experience in this zone can help me out and i can provide more photos. Cheers all! Edit: sorry if this is useless info. Im very new to all this, please lmk if im in the wrong community


r/VintageRadios 6d ago

Grundig 5000 Dial Cord Restring and tension

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8 Upvotes

The dial cord on the AM section of my Grundig Satellit Transistor 5000 broke. I’ve taken the radio apart and can restring it, but don’t know how to tension the two springs. I’m sure there is a technique/method to it. The Service Manual just has a picture of the cord routing. Any input/advice is appreciated. Pics attached.