Noval socket, miniature 9 pin (USA pico-9) B9A Filament Vf 6.3 Volt / If 0.3 Ampere / Indirect / AC/DC voltage and current specified Description Information Hans M. Knoll: The EBF80, which appeared in radios from 1950/51, it is already found with the data 8.6.49. PHILIPS had already had a television market in France, the UK and other countries for a long time. Germany became interesting for Philips for the television market from the end of 1952. That is why Philips had production and development sites with MULLARD, BRIMAR, CIFTE, etc. long before VALVO. A data sheet from the Netherlands dated November 15, 1949 shows the EF80, EQ80, ECL80, PL81 and PY80 tubes for the TX400-A model. However, we distinguish between tube development and pre-series for the development of circuits and models starting from the market launch we record (production series on the market). Dimensions (WxHxD) including pins/tip 22 x 68 x mm / 0.87 x 2.68 x inches