Any idea what these are and how they work?
#1
05-23-17, 12:17 PM
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Any idea what these are and how they work?
I bought these on Etsy.
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.
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 12:47 PM. Reason: added pic from link
#3
05-23-17, 12:40 PM
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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
and added description: 2 Vintage Steampunk Vacuum Tubes G-807 Soviet Tesla lamp amplifier Radio Components Fantasy Craft Old TV glass bulb Russia
#4
05-23-17, 12:49 PM
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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.
#5
05-23-17, 12:50 PM
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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.....
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.....
#7
05-23-17, 03:49 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....
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....
#8
05-23-17, 03:56 PM
Group Moderator
Russia is making quality tubes that are hard to find elsewhere.
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.
#10
05-23-17, 06:56 PM
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There used to be tube testers in stores
Took up the same amount of room then that an ATM machine does now.
You would play with the adjustments and the meter would show the tube was ok.
Of course.... the tube was still borderline or kaput.
#11
05-24-17, 07:04 AM
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.
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.
#12
05-25-17, 04:10 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.
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.
#13
05-25-17, 05:34 PM
Group Moderator
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.
A battery would be very short lived.
You'd need to use an AC transformer.... around 3-5 vac on pins 1 and 5.
