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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: 4P1L in filament bias posted by vbenonisen on February 15, 2017 at 09:02:38:
Apply Paul Joppa's 102 dB. rule to the claimed 93 dB. sensitivity and you get 8 W.
A look at a chart of 300B operating conditions
http://tdsl.duncanamps.com/dcigna/tubes/sheets/misc/4300b-2h.gif
suggests that 450 V. on the plate and -103 V. on the grid will work with your "iron". Don't expect lengthy service life under that sort of regime.
Eli D.
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- RE: 4P1L in filament bias - Eli Duttman 11:48:34 02/15/17 (0)
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