OT Need help to ID this tube

[yf]

I was given this tube by an old time electrician who is unfortunately long gone.
I vaguely remember that he said it was used in some type of radio transmission apparatus.
I clearly remember he said it had cost many thousands of dollars new.
I wish I had asked him for more info back then (about 18 years ago).
I've been cleaning up and came across this and don't know anything about it.
For size reference, in the top pic, its sitting on 5/4 x6" lumber.
It weighs about 8 pounds.
I'm assuming he put the hose clamp on to protect the heat sink fins, which appear to be copper or high red brass.

TIA :-)

[fredf]

http://www.google.com/url?sa=t&rct=j...9R1Ip6DTapotMg

[yf]

I did find this.

http://www.rfeworld.com/datasheets/7237A.pdf

However aside from knowing its a triode I don't understand much of this data sheet.

Apparently this link is the same as the one posted above by fredf.

[Stuart Br]

That's a Monster - 10kW at 30MHz or 6kW at 50MHz, boy that would hurt...

[J Tiers]

The power and operation figures are mostly for 2 tubes in push-pull, so not *quite* as large....

But the tubes are clearly for medium power usage among transmitter tubes.

Note the driving power of 430 watts, 0.6 amps grid current... That's the power needed at the INPUT to get the listed output power...... you need a very substantial amplifier just to DRIVE the tube to those outputs

[KIMFAB]

That looks very much like one of the output tubes used in the 10 Kw transmitters we had at the Naval transmitting site that I was stationed at in the late 60's.

Didn't get any pics unfortunately, being military and all.

I do, however, have a 1 Kw AM transmitter out back that would probably work as a driver for it. Probably could cut you a deal.

[browne92]

If it was used in a push-pull configuration, those were usually changed out in pairs. If one died, you changed them both. That may be the survivor. Also, I don't know if that one falls into this category, but I seem to remember that larger tubes could be sent off and rebuilt.

Stirring up some memories now...

[Forestgnome]

That looks very much like one of the output tubes used in the 10 Kw transmitters we had at the Naval transmitting site that I was stationed at in the late 60's.

Didn't get any pics unfortunately, being military and all.

I do, however, have a 1 Kw AM transmitter out back that would probably work as a driver for it. Probably could cut you a deal.

Small world. I was also at a couple of NavRadTransFac's. Dixon and Deep Freeze. Worked on the AN/FRT-39's, 40's, 72's, and 84's. For those not familiar these are 10kw-100kw HF transmitters. That tube is very similar to what we used, but the ones we used had ring electrodes at the bottom instead of pins. Typically the contacts and fins were silver-plated copper. Also there was usually beryllium in the ceramic so disposal was controlled. I believe the exciter section on the FRT's were 1kw.

[yf]

First of all thank you to all who replied.
The replies raised more questions.

How can I test this?
If good, can I sell it?
If not, does it have any scrap value, or
should I make it into a table lamp? :-)

I still don't understand the data sheet, but I now know its a
transmitter.

Thanks for the responses.

[darryl]

I have a few similar tubes, though not quite as large or powerful as that one. I was definitely thinking of the table lamp idea. I would power up the filament of course, which would make it into a heater. With some type of ornate grid suspended above, it would become a place to keep your coffee cup warm