v 20130925 2 C 40000 40000 0 0 0 title-B.sym T 50300 40900 9 10 1 0 0 0 1 Current Controlled Amplifier T 54400 40200 9 10 1 0 0 0 1 Tom Schouten T 52600 42300 9 10 1 0 0 0 1 This is a current-sink controlled amplifier. T 52600 42000 9 10 1 0 0 0 1 To be combined with the EIDAC to build a DVCA C 43700 45200 1 0 0 npn.sym { T 44300 45700 5 10 0 0 0 0 1 device=NPN_TRANSISTOR T 44200 45700 5 10 1 1 0 0 1 refdes=Q1 T 44200 45500 5 10 1 1 0 0 1 value=2N3904 } C 44400 43700 1 0 0 npn.sym { T 45000 44200 5 10 0 0 0 0 1 device=NPN_TRANSISTOR T 45000 44200 5 10 1 1 0 0 1 refdes=Q3 T 45000 44000 5 10 1 1 0 0 1 value=2N3904 } C 46100 45200 1 0 1 npn.sym { T 45500 45700 5 10 0 0 0 6 1 device=NPN_TRANSISTOR T 45600 45700 5 10 1 1 0 6 1 refdes=Q2 T 45600 45500 5 10 1 1 0 6 1 value=2N3904 } C 44300 46700 1 90 0 resistor.sym { T 43900 47000 5 10 0 0 90 0 1 device=RESISTOR T 44000 46900 5 10 1 1 90 0 1 refdes=R1 T 44300 46700 5 10 0 1 90 0 1 footprint=R025DOUBLE T 44300 46700 5 10 1 1 0 0 1 value=10k } C 45700 46700 1 90 0 resistor.sym { T 45300 47000 5 10 0 0 90 0 1 device=RESISTOR T 45400 46900 5 10 1 1 90 0 1 refdes=R2 T 45700 46700 5 10 0 1 90 0 1 footprint=R025DOUBLE T 45700 46700 5 10 1 1 0 0 1 value=10k } N 44200 45200 45600 45200 4 N 44900 44700 44900 45200 4 C 44800 43400 1 0 0 gnd.sym N 46100 45700 46300 45700 4 N 44200 46700 44200 46200 4 N 45600 46700 45600 46200 4 N 44200 47600 44200 48000 4 N 44200 48000 45600 48000 4 N 45600 47600 45600 48000 4 N 44900 48800 44900 48000 4 C 44900 48600 1 0 0 voltage-3.sym { T 45100 49300 5 8 0 0 0 0 1 device=VOLTAGE_SOURCE T 45100 49300 5 10 1 1 0 0 1 refdes=Vpow T 45200 49100 5 10 1 1 0 0 1 value=5V } C 46300 45500 1 0 0 voltage-3.sym { T 46500 46200 5 8 0 0 0 0 1 device=VOLTAGE_SOURCE T 46500 46200 5 10 1 1 0 0 1 refdes=Vvgnd T 46500 46000 5 10 1 1 0 0 1 value=4V } C 43700 45500 1 0 1 voltage-3.sym { T 43500 46200 5 8 0 0 0 6 1 device=VOLTAGE_SOURCE T 43400 46200 5 10 1 1 0 6 1 refdes=Vin T 43400 46000 5 10 1 1 0 6 1 value=3V } C 44400 44000 1 0 1 voltage-3.sym { T 44200 44700 5 8 0 0 0 6 1 device=VOLTAGE_SOURCE T 44200 44700 5 10 1 1 0 6 1 refdes=Vcont T 44200 44500 5 10 1 1 0 6 1 value=0.5V } C 43400 43900 1 0 0 gnd.sym C 42700 45400 1 0 0 gnd.sym C 47100 45400 1 0 0 gnd.sym C 45700 48300 1 0 0 gnd.sym C 53800 49800 1 0 0 gnucap-model-1.sym { T 53900 50400 5 10 0 1 0 0 1 device=model T 53900 50300 5 10 1 1 0 0 1 refdes=A1 T 55100 50000 5 10 1 1 0 0 1 model-name=2N3904 T 54300 49800 5 10 1 1 0 0 1 file=gaf/models/2N3904.mod } N 45800 48800 45800 48600 4