| Author: | mpeg2 (registered user: 101 posts ) |
| Date: | Sat, Jun 16th, 2012 @ 19:12 ( . ) |
Just finished wiring up a 4-4-0, but still have to wade through the schematic to make sure I got it all right. I want to double check my bias calculation: from the schematic: .7 PaMax / Va should yield the "mA reading across R16 & R17" (actually, this should say the mV reading across R16 & R17) From the Tungsol datasheet, PaMax=5W From the schematic, Va=339V This results in approx 10mA (which, across a 1 ohm resistor is 10mV) Does this sound right?? TIA Rich |
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