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Transmitting Tubes Click here for a quick reference chart of common transmitting tube data, put together by Larry, W6LEG. This data is for reference only, and cannot be guaranteed as accurate. SPECIAL ANNOUNCEMENT!
We just got in a supply of the 4CX250FG / 8621 transmitting tetrodes, also in "removed from military spares" condition. This is the 26.5 volt filament version (only .54 amps required!) of the 4CX250B, which has a 6 volt filament. Eimac tube data sheet for the 4CX250FG is here: http://www.cpii.com/docs/datasheets/75/4CX250FG-8621.pdf Very nice shape, sold with a 30 day satisfaction guarantee. Refund or exchange, less only shipping, if not delighted, if returned to us in original condition. We will be happy to supply pairs that have been run together on request. Tubes run together tend to have similar characteristics. Both Eimac and Amperex available (specify preference). Never mix brands because of differences in anode airflow resistance! Price: $49 each! (Order Now!) Eimac YU-191A, Mullard YD-1172, and Valvo YD-1172 water-cooled industrial triodes.
These three types are essentially the identical tube, and are used interchangeably in a wide range of industrial equipment. While the tubes we have in stock look like new or almost like new, they were in fact removed from retired industrial equipment, which appeared to have had very little (or no) use. While we do not have the ability to test these tubes, your satisfaction is absolutely guaranteed, and backed up with a 30 day refund or exchange privilege, less only shipping and handling charges. A detailed data sheet for the Mullard YD-1172 may be examined at this link as a .pdf file: http://tubedata.tigahost.com/tubedata/sheets/129/y/YD1170.pdf Weight is approximately 4 pounds. Price: $995 each! (Order Now!) Click here to read a page with EXCELLENT electron tube use / care tips from the Freeland Products website, ESPECIALLY "adjusting filament voltage" section. From time to time we frequently have transmitting tubes for sale. Most tubes are good pulls, and all are guaranteed to your satisfaction. The tube types we frequently have include:
The L-4945A is a crowbar Thyratron (klystron and IOT protection). We have only one unit available, brand new / unused, in original box. Date code is December, 2000. Made by Litton Electron Devices, 1035 Westminster Drive , Williamsport , PA 17701-3911 Ratings:
Supplied with original factory "Final test procedure performance sheet". Our price: $995 ! Sorry, but this item can be shipped ONLY to US addresses (the 50 US states). Please do not ask for worldwide shipping on this item. Ordering: To order, use our secure online order form, or call us Monday through Friday 8 AM-5 PM Eastern time at 770-973-6251. You may also print the order form using your browser's print button and fax your order to us at 815-461-7730. PLEASE give us your email address so that we can easily contact you in case we have a question. Visa and Mastercard accepted! |
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Our customers have told us that the following terms have legitimately helped them find us, and the products that we index and sell on this page. If you have an idea of another term you were looking for where that need would be legitimately satisfied by goods indexed or found on this page only, please let us know. Please be very selective in suggesting additional terms for this section. We want potential customers to be able to quickly and easily find us, but under no circumstances do we want to "spam" anyone with unrelated search results!
transmitting tubes, electron tubes, Eimac, Amperex, RCA, Mullard, used transmitting tubes, lowest prices on transmitting tubes, ceramic tubes, glass transmitting tubes We pay cash for your used electron tubes from medical imaging equipment!
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These tubes are designed for service as an industrial oscillator at frequencies up to 120 Mhz. We currently have the four tubes shown in the photo available: One Eimac YU-191A, one Mullard YD-1172, and two Valvo YD-1172. These tubes are of course subject to prior sale, so please verify stock before ordering! 
Litton L-4945A Hydrogen Thyratron 