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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: 71A driver at 10mA - too low to sound good? posted by lk4330 on January 22, 2015 at 09:06:21:
Keeping in mind the amount of swing you need for the 50 to reach the power you want, look at the plate curves of the 71a with the load line, if you drop from 20ma to 10ma with everything else the same, following the load line to the right of the idle point it drops into the "mud" (non-linear part where the grid lines bunch up and the plate voltage doesn't move very much compared to the plate voltage movement to the left of idle) really quickly.
Tre'
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Follow Ups
- RE: 71A driver at 10mA - too low to sound good? - Tre' 09:57:35 01/22/15 (6)
- RE: 71A driver at 10mA - too low to sound good? - dave slagle 10:15:53 01/22/15 (5)
- RE: 71A driver at 10mA - too low to sound good? - Paul Joppa 12:00:02 01/22/15 (3)
- RE: 71A driver at 10mA - too low to sound good? - dave slagle 17:37:47 01/22/15 (2)
- RE: 71A driver at 10mA - too low to sound good? - Paul Joppa 21:15:49 01/22/15 (1)
- RE: 71A driver at 10mA - too low to sound good? - dave slagle 10:15:14 01/23/15 (0)
- RE: 71A driver at 10mA - too low to sound good? - Tre' 11:57:39 01/22/15 (0)
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