a tube primer for guitar and bass players - Guitar Amplifier Blueprinting
a tube primer for guitar and bass players - Guitar Amplifier Blueprinting
a tube primer for guitar and bass players - Guitar Amplifier Blueprinting
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B+ BIAS mA TC (gm)<br />
DATE TUBE<br />
volts volts actual actual gp Gain Comments<br />
Expected 1.2 1600 85 Gain in this circuit.<br />
8/10/2004 8th Mullard run 250 -2 1.1 1500 0.0185 81.08 Most consistant batch yet.<br />
1.2 1650 0.02 82.50 Good quality run<br />
1.2 1610 0.02 80.50 Gain up over last batches<br />
1.1 1500 0.018 83.33<br />
1.3 1590 0.019 83.68 Plate resistance vs TC on target<br />
1.1 1400 0.017 82.35 Mica assembly best yet<br />
1.2 1530 0.0185 82.70 Current great - better than R2, R3<br />
1.3 1620 0.019 85.26<br />
1.3 1430 0.0175 81.71<br />
1.2 1460 0.018 81.11<br />
Output TC Gain<br />
Averages 1.2 1529 82.42
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