s-petersen
Scott
Anybody know what this is? Is the tube a rectifier or Triode?
The filament transformer is good for 6.3v @ 35a
The filament transformer is good for 6.3v @ 35a
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What's it
- Thread starter s-petersen
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Appears to be a transmitting triode. Looks similar to a 3-500Z, at the very least, though might be larger given the size of the filament supply. The unit in question appears to be a linear amplifier, as used for amateur radio. I have a Heathkit SB-200 linear amplifier, which uses a pair of 572B tubes to generate around 1,000W (probably closer to 6-700W for voice use). Here's a picture of the front panel:
Have yet to use it on the air, since I'd probably need to give it its own circuit, and it could probably use some new caps. It should go quite nicely with my Heathkit SB-102 transceiver, though.
-Adam KB1YTN
Have yet to use it on the air, since I'd probably need to give it its own circuit, and it could probably use some new caps. It should go quite nicely with my Heathkit SB-102 transceiver, though.
-Adam KB1YTN
s-petersen
Scott
A name on the box says Spectro it's called a generator, but that's all of the info I can find.
The brown capacitor thing says 1000pf@20kv
The brown capacitor thing says 1000pf@20kv
BinaryMike
Pelagic EE
Could be a power source for an RF induction heater, which would most likely be self-rectifying.
s-petersen
Scott
I could really use a flux capacitor!
s-petersen
Scott
You guys are really lucky, the flux capacitor has gone to air, I was going to go back to the early seventies and buy up all of the good stuff,when people were throwing it out.
For those that are interested I found the number hidden in back, it is a triode.
http://www.g8wrb.org/data/Thales/T800-3.pdf
It's a pretty hefty tube.
For those that are interested I found the number hidden in back, it is a triode.
http://www.g8wrb.org/data/Thales/T800-3.pdf
It's a pretty hefty tube.
BinaryMike
Pelagic EE
Looks like it could pump out 300W in single-ended class A service, idling at 3KV and 250mA, with about -75V grid bias, and no fan!
arts
Addicted Member
s-petersen
Scott
The pdf says medium power!
s-petersen
Scott
The coiled white tube is some kind of inductor , it is a piece of heavy wire covered in something like Teflon, and supported on a nylon threaded rod.
The copper pipe has an insulated wire inside, also covered in Teflon
The copper pipe has an insulated wire inside, also covered in Teflon
Lavane
Lunatic Member
Bummer, I was getting kind of thirsty.
Not sure off-hand that any pentodes have been made in that form factor. Most of the transmitting tubes in that form factor were triodes, occasionally tetrodes. Some transmitting pentodes do exist, but they're either a LOT larger (5CX-series), or in a different form factor. Most of the transmitting tubes on this list are either triodes or beam tetrodes. The largest power pentode I could find listed was the 803, which looks quite a bit different than the T800-3 in the OP's device, and is rated for 'only' 53W in class B phone (210W in class C CW, which is less than a tenth of what the T800-3 is rated for in that mode).
-Adam
