This is an interesting tube. I'm unsure of the manufacturer or if it's new or used. It looks like it has GE etching on the tube but came in a new Brimar box in an estate we bought Properly tested on our Calibrated TV-7D/U, The Gold Standard where Minimum = 57 The Pentode Section Tested 95 The Triode section tested 110 No Gas, No Shorts Nice pins. Beautiful box. Buy with confidence. We are very proud of our 100% positive feedback. Please read it. We stock over 3,000,000 tubes. If you need something, please message us and we will send you an offer. Your tube(s) will be properly packaged to insure they get to you in good shape. Serving collectors and the trade since 1978 If you are looking to re-tube any kind of tube gear such as CB Radios, Ham Radios, Linear Amplifiers, HI -FI amplifiers, Guitar amplifiers, Preamplifiers, Compressors, Equalizers, Microphones, Industrial or Medical equipment, you can send us the make & model number and we will try and help you. We mainly stock Domestic brands such as RCA, GE (General Electric), Sylvania, Raytheon, TungSol and PentaLabs. We stock some We also carry european brands such as Amperex, Mullard, Telefunken and Marconi.
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