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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: Exploring ONGAKU 2nd VAS design - local feedback posted by Eric Chan on December 21, 2021 at 03:31:37:
The cathode follower driver has 200Volts on its plate. The cathode itself is at -45 Volts which apparently is the class A bias point. It will have no troubles swinging 70 Volts in either direction (total 140 Volts).
A modified version of this circuit will easily be able to drive a 300b as well; the modification simply to alter the cathode voltage so the 300B is properly biased.
With a 300b I would think you don't need so much gain.
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Follow Ups
- This circuit appears capable of that voltage swing. - Ralph 12/21/2113:22:23 12/21/21 (11)
- RE: This circuit appears capable of that voltage swing. - Eric Chan 05:22:08 12/22/21 (10)
- Distortion - Triode_Kingdom 10:05:59 12/22/21 (0)
- What makes you think the harshness is coming from this circuit? nt - Ralph 10:02:22 12/22/21 (3)
- RE: What makes you think the harshness is coming from this circuit? nt - Eric Chan 04:21:18 12/23/21 (2)
- Harshness comes from design more than just parts. - Ralph 10:01:14 12/23/21 (0)
- RE: What makes you think the harshness is coming from this circuit? nt - Eric Chan 05:22:27 12/23/21 (0)
- RE: This circuit appears capable of that voltage swing. - Paul Joppa 08:21:32 12/22/21 (4)
- RE: This circuit appears capable of that voltage swing. - Eric Chan 09:05:24 12/22/21 (3)
- RE: This circuit appears capable of that voltage swing. - Paul Joppa 15:35:25 12/22/21 (2)
- RE: This circuit appears capable of that voltage swing. - Eric Chan 07:19:21 12/23/21 (1)
- RE: This circuit appears capable of that voltage swing. - Cleantimestream 12:21:15 12/24/21 (0)
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