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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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In Reply to: Mod a LoftinWhite 2a3 to accept 45 tube posted by twl168 on February 1, 2007 at 10:43:01:
You will need to switch in more resistance in the cathode of the output tube. The 45 operates with less current (35mA vs 50 to 60mA for the 2A3), so you will need to increase the resistance to get the necessary voltage differential (bias voltage) between the driver output and the cathode of the 45 as well as voltage offset for the driver. It is not easy for a beginner to balance (but also not too hard to figure out if you know Ohms law and tube characteristic curve). If you need specific help, you will need to post more information about your circuit.
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Follow Ups
- Re: Mod a LoftinWhite 2a3 to accept 45 tube - David McGown 17:01:08 02/01/07 (2)
- Re: Mod a LoftinWhite 2a3 to accept 45 tube - twl168 21:51:15 02/01/07 (1)
- Re: Mod a LoftinWhite 2a3 to accept 45 tube - Paul Joppa 12:33:05 02/02/07 (0)
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