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5B/254M, 5B/255M and 5B/257M are indirectly heated beam tetrodes,
first registered in 1957 by STC in London (UK).
They are designed for use in HF and low-VHF
applications, at frequencies up to 60 MHz. The valve is available in several
versions, including one with a top anode connection (5B/254M) and one with
solder leads (5B/254G).
➤ 5B/254M datasheet
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5B-254M Top Anode connection 5B-254G Flexible solder leads 5B-255M Anode wired to the socket 5B-257M 12V/470mA version
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Vf 6.3 V If 900 mA Va 600 V Ia 100 mA Vg -45 V Ig 4 mA Pdrv 300 mW Pout 40 W Pout 25 W Fmax 60 MHz Manufacturer STC Dimensions 28 × 79 mm Weight 8 g
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© Crypto Museum. Created: Friday 01 September 2023. Last changed: Friday, 01 September 2023 - 07:36 CET.
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