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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: After using the Shuguang 2A3C for years... posted by Aldovan on June 4, 2015 at 00:10:14:
...the maximum power output from the JJ will be about the same as any other 2A3, that is about 4W in class A1 (no grid current.) According to its specifications the JJ 2A3 can be run at 300B operating points (but still 2.5V across filament) which could indeed yield around 8W, or perhaps a little more, in A1.
Class A2 operation (grids swinging positive and drawing current) may permit higher power output but requires a driver stage designed for that purpose. I have no idea how the JJ compares to other DHT tubes in supporting such operation. Most tube manufacturers don't draw plate curves for positive Vgk.
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Follow Ups
- If used in a conventional 2A3 circuit... - JJ Triode 08:21:37 06/04/15 (1)
- RE: If used in a conventional 2A3 circuit... - Paul Joppa 13:47:31 06/04/15 (0)
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