| Author |
Topic: Can you identify this tube? |
Ray Minich
From:
Bradford, Pa. Frozen Tundra
|
Posted 20 Sep 2011 4:38 am |
|
I have an Eimac power tube number Y-512B.
It looks like either a large high voltage rectifier or perhaps a high power triode transmitting tube.
4 pins at the base and a plate cap on top.
I cannot find a smell of information about it on the web. I've found several Eimac tube listings/charts/catalogs and none of them have info about that tube.
I'd really like to know the purpose/function of this tube to see if it would be useable as a 5 mHz power amplifier.
Is Eimac still in business? I cannot find any connection to them.
Thanks any and all for any info you can provide.
_________________
Lawyers are done: Emmons SD-10, 3 Dekleys including a D10, NV400, and lots of effects units to cover my clams... |
|
|
 |
Rich Santucci
From:
Perkasie Pennsylvania USA
|
Posted 20 Sep 2011 7:11 am
|
|
Ray,
All I could find is that it's a power tetrode requiring a 26V filament. Saw a used one listed for $750, but as you say no specs.
Eimac is part of CPI
http://www.cpii.com/division.cfm/9
You can try them for more specifics.
Regards,
Rich |
|
|
|
John Billings
From:
Ohio, USA
|
|
|
|
Dave Grafe
From:
Hudson River Valley NY
|
|
|
|
Gary Chiappetta
From:
San Bruno, California, USA
|
Posted 20 Sep 2011 11:55 pm
|
|
Ray,
Eimac is indeed still in business. Communications and Power Industries (CPI) is the company that was formed when Varian Associates sold off many of their operating divisions years ago. Microwave Tubes, TWTs, and Eimac power tubes are still manufactured at the original (formerly) Varian facilities in Palo Alto, California.
I work there and will inquire tomorrow about the Y-512B. If it is a glass envelope tube it was probably manufactured in Salt Lake City, Utah. Both the Salt Lake City plant and the San Carlos, CA plants have been closed and their propety (real estate) sold many years ago. |
|
|
|
Ray Minich
From:
Bradford, Pa. Frozen Tundra
|
Posted 21 Sep 2011 6:10 am
|
|
Holy Smokes folks: The response and information is beyond my wildest... Thanks for the info and I look forward to finding out what this animal can do.
I'm really interested in generating a pulse of 5 cycles of 5 mHz energy at about 400 volts to send to a piezoelectric transducer for immersion ultrasonic inspection.
In the olden days they stacked 5 SCRS in series and just fired a 400 vdc burst at it. I can't afford a store bought linear amp at the moment so "dig we must!".
Gary; Thanks for whatever you can dig up for me. I really appreciate it.
_________________
Lawyers are done: Emmons SD-10, 3 Dekleys including a D10, NV400, and lots of effects units to cover my clams... |
|
|
|
Joe Naylor
From:
Avondale, Arizona, USA
|
Posted 22 Sep 2011 9:27 am
|
|
http://www.tubesandmore.com/
Antique Electronic Supply in Tempe, AZ
480.820.5411
They will fix ya up too
need more??
Joe Naylor
www.steelseat.com
_________________
Joe Naylor, Avondale, AZ (Phoenix) Announcer/Emcee owner www.steelseat.com *** OFFERING SEATS AND Effects cases with or without legs and other stuff ****** -Desert Rose Guitar S-10, Life Member of the Arizona Carport Pickers Assoc., Southwest Steel Guitar Assoc., Texas Steel Guitar Assoc., GA Steel Guitar Assoc., KS Steel Guitar Assoc. (Asleep at the Steel) tag line willed to me by a close late friend RIP |
|
|
|
