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You get one 395A Thryatron tube. I can not tell if these are pulls or not. I see no evidence of lead cutting or solder so I am guessing that they are new. Mixed brands - they come in a white tube box. Typical online price is $13.00 to $20.00 each. Here is some interesting info from the spec sheet. The 395A is primarily used in the relay service. The characteristic neon glow displayed on thesurface of the cathode while the tube is conducting make the use of auxiliary visual indicating devices unnecessary. The minute triggering current requirements and lack of necessity for filament power make this tube extremely suitable for use in transistorized equipment or in battery operated equipment. The 395A will fire directly from a signal supplied by either a vacuum photo tube or a cadmium sulphide photo cell. The 395A has also found use asa a trigger tube, as a relaxation oscillator and as a voltage regulator. * Positive Anode Voltage: 140vdc * Peak Cathode Current: 35ma More specs here: http://datasheets.electron-tube.net/sheets/127/3/395A.pdf (We do not proofread any ads submitted by members) |
GMercer@desmoines-classifieds.com (George Mercer) for more information. Your emails will be instantly forwarded to the poster's private address.
