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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: There is one other thing. posted by Michael Samra on April 3, 2017 at 20:48:03:
Some people uses 250V across the 6B4G (and often 60mA Idle current). This would give 15W Plate disipation. However, the OPTs often used is 2500 ohm load.
In this case the Lundahl OPT is a 3000 ohm making the designer to chose a slightly higer voltage. And to stay with the 15W dispation, the Idle current caused of that decreased to 50mA.
The 10 ohm resistor at the 6B4G cathode is just for measure purposes.
50mA current through it drops 0,5V which is negligable in this case.
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Follow Ups
- A matter of choises - pix 23:10:10 04/03/17 (1)
- RE: A matter of choises - Michael Samra 03:45:31 04/04/17 (0)
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