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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: So should I take it OUT and leave the bottom tube without.... posted by Ivan303 on April 5, 2021 at 05:54:17:
The original circuit is SRPP in name only. It does not produce the desired anti-phase mechanism, because the load impedance is too high. Both sections operate in phase, with the upper section consuming supply voltage and power for no benefit. Gain of the lower stage is substantially reduced in this arrangement, as is the maximum output swing. The 300B would be better served if it was driven by a conventional grounded cathode stage.
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Follow Ups
- RE: So should I take it OUT and leave the bottom tube without.... - Triode_Kingdom 09:22:55 04/05/21 (6)
- And this one? - Ivan303 10:17:51 04/05/21 (5)
- RE: And this one? - Triode_Kingdom 12:06:17 04/05/21 (3)
- Output doesn't need to swing much as the 300B is driving 106dB horns...s - Ivan303 12:24:48 04/05/21 (2)
- RE: Output doesn't need to swing much as the 300B is driving 106dB horns...s - Triode_Kingdom 14:23:56 04/05/21 (1)
- Thanks.... Done! - Ivan303 14:49:09 04/05/21 (0)
- See Morgan Jones - cellailuca 10:41:56 04/05/21 (0)
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