[Elecraft] More missing bias info (kpa100)

[Neal Campbell]

I am still debugging why the apparently functioning KPA100 has no
negative bias going into U4 pin 8. Here are the measurements of U4
pins as well as all of the diodes (in rx)

Any ideas?

Neal

U4 voltages (rx)
P1 = 13.2
P2 = -0.014
p3 = 0
p4 = 0
p5 = 0
p6 = 0
p7 = 0
p8 = -0.214
p9=  0
p10= 0
p11= 0.012
p12= 5.02
p13= 0
p14= 0
p15= 0
p16= 4.9

Diode    a/c
d1 18.86/21.76
d1 18.0/18.8
d3 15.81/18.04
d4 14.2/15.8
d5 14.0/14.2
d6 13.2/14.0
d7 -0.215/0.15
d8 0.15/0
d9 13.2/13.2
d10 0/13.5
d11 1.58/13.5
d12 0/0.8