Any idea what these are and how they work?

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Old 05-23-17, 11:17 AM
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Question Any idea what these are and how they work?

I bought these on Etsy.

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The description was: 2 Vintage Vacuum Tubes G-807 Soviet Tesla lamp amplifier Radio Components Old glass bulb Russia

Ever seen anything like them? (let me know if this is the wrong forum area)

I bought them for making steampunk gear but if I could make one or both light up that would be cool.
 

Last edited by PJmax; 05-23-17 at 11:47 AM. Reason: added pic from link
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Old 05-23-17, 11:33 AM
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Getting an error trying to follow your link.
 
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Old 05-23-17, 11:40 AM
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I changed the link to https://*******/hjxsqv
and added description: 2 Vintage Steampunk Vacuum Tubes G-807 Soviet Tesla lamp amplifier Radio Components Fantasy Craft Old TV glass bulb Russia
 
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Old 05-23-17, 11:49 AM
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Vacuum tubes were the predescessor to chips on circuit boards. I do not believe they will light up like a bulb.
 
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Old 05-23-17, 11:50 AM
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Those are old sweep tubes from a TV. They don't light up like a lamp. There is a filament inside the tube but the most you'd get is a pinpoint dull orange glow.

They are basically used for decorative purposes just as they are.

I've thrown away 100's of those tubes..... both new and used. Who knew.....

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Old 05-23-17, 01:17 PM
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Now if you can find a mercury vapor rectifier tube they will light up for you.

P.S. God, makes me feel old when people don't know what vacuum tubes are.

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Old 05-23-17, 02:49 PM
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The tubes are basically for old guitar amps using a 6L6 to 807 adapter. Technology has come a long way, but nothing sounds like an old tube amp. They give a warm sound that cannot be duplicated IMO.
Russia is making quality tubes that are hard to find elsewhere.
If these are for decoration only, you might want to sell them to a person that needs them and find some used ones for you.

Ray is right, I am old too There used to be tube testers in stores and don't go looking for one right now....
 
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Old 05-23-17, 02:56 PM
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Russia is making quality tubes that are hard to find elsewhere.
Where do you think most of our tube making equipment went to ? Yup.... Russia.

If his tubes are as shown in the picture....with an hv cap on top.... they are old TV type sweep tubes and are functionally useless at this point.... unless they fit in someones RF linear amp.
 
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Old 05-23-17, 03:28 PM
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That's good news Pete, they are for decoration.
When I see a tube, I just want to make sure...
 
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Old 05-23-17, 05:56 PM
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There used to be tube testers in stores
Remember when drugstores had them. If your TV was on the blink you could check the tubes while shopping and getting your prescription filled.

Took up the same amount of room then that an ATM machine does now.

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You would play with the adjustments and the meter would show the tube was ok.
Of course.... the tube was still borderline or kaput.
 
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Old 05-24-17, 06:04 AM
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I have an old radio my grandpa had in his sun porch where he would listen to the Twinkies. Had the tubes checked in Duluth, needed one new one... still doesn't work. This guy works on these old radios and says bring it down, I'll get it working. We'll see.




When I was a kid I messed around with TVs, go to the drug store with a box of tubes and check them on the machine. Best part was having a vanilla coke or maybe a banana split at the fountain. Long time ago now.
 
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Old 05-25-17, 03:10 AM
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Wow, thanks for all the replies!

Yeah, I really didn't expect them to do much (if they even still work at all). The dull orange light is cool though, could I wire them to a battery or something to make them do that?


Also I've seen stuff like this used in steam/cyberpunk cosplay more than a few times, it's funny people use them as a far-out fantasy decoration when they aren't THAT old lol.
 
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Old 05-25-17, 04:34 PM
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I've never seen a tube with an anode cap be used in a guitar amp but apparently the 807 tubes were used in very old tube amps.

A battery would be very short lived.
You'd need to use an AC transformer.... around 3-5 vac on pins 1 and 5.

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