Version 4.1 SHEET 1 2476 828 WIRE 256 -144 16 -144 WIRE 352 -144 256 -144 WIRE 16 -128 16 -144 WIRE 352 -112 352 -144 WIRE 1568 -48 1264 -48 WIRE 1760 -48 1568 -48 WIRE 1872 -48 1760 -48 WIRE 16 -32 16 -48 WIRE 1568 -16 1568 -48 WIRE 1760 -16 1760 -48 WIRE 1872 0 1872 -48 WIRE 352 32 352 -32 WIRE 416 32 352 32 WIRE 496 32 416 32 WIRE 784 32 560 32 WIRE 800 32 784 32 WIRE 352 48 352 32 WIRE -80 96 -128 96 WIRE 16 96 -80 96 WIRE 192 96 96 96 WIRE 288 96 192 96 WIRE 1568 96 1568 64 WIRE 1760 96 1760 64 WIRE 1760 96 1568 96 WIRE 1872 96 1872 64 WIRE 1872 96 1760 96 WIRE 784 160 784 32 WIRE 352 176 352 144 WIRE 400 176 352 176 WIRE 544 176 400 176 WIRE -128 208 -128 96 WIRE 1568 208 1568 96 WIRE 1632 208 1568 208 WIRE 1712 208 1632 208 WIRE 2000 208 1776 208 WIRE 2016 208 2000 208 WIRE 1568 224 1568 208 WIRE 352 240 352 176 WIRE 1152 272 1104 272 WIRE 1248 272 1152 272 WIRE 1408 272 1328 272 WIRE 1504 272 1408 272 WIRE 2000 336 2000 208 WIRE 1568 352 1568 320 WIRE 1616 352 1568 352 WIRE 1760 352 1616 352 WIRE -128 368 -128 288 WIRE 272 368 -128 368 WIRE 352 368 352 320 WIRE 352 368 272 368 WIRE 784 368 784 240 WIRE 784 368 352 368 WIRE 864 368 784 368 WIRE 1104 384 1104 272 WIRE 272 416 272 368 WIRE 1568 416 1568 352 WIRE 1104 544 1104 464 WIRE 1488 544 1104 544 WIRE 1568 544 1568 496 WIRE 1568 544 1488 544 WIRE 2000 544 2000 416 WIRE 2000 544 1568 544 WIRE 2080 544 2000 544 WIRE 1488 592 1488 544 FLAG 800 32 out FLAG -80 96 input FLAG 256 -144 Vsupply FLAG 272 416 0 FLAG 192 96 base FLAG 416 32 collector FLAG 400 176 emmitter FLAG 16 -32 0 FLAG 2016 208 out_2 FLAG 1152 272 input_2 FLAG 1264 -48 Vsupply FLAG 1488 592 0 FLAG 1408 272 base_2 FLAG 1632 208 collector_2 FLAG 1616 352 emmitter_2 SYMBOL npn 288 48 R0 SYMATTR InstName Q1 SYMATTR Value 2N2222 SYMBOL cap 560 16 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 1µ SYMBOL res 336 -128 R0 SYMATTR InstName R_collector SYMATTR Value 20k SYMBOL res 336 224 R0 SYMATTR InstName R_emmitter_1 SYMATTR Value 10R SYMBOL voltage 16 -144 R0 WINDOW 3 24 44 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value 15V SYMATTR InstName V1_supply SYMBOL voltage -128 192 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value SINE(0 1 100k) SYMBOL res 768 144 R0 SYMATTR InstName R3 SYMATTR Value 1Meg SYMBOL res 0 80 M90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 100R SYMBOL npn 1504 224 R0 SYMATTR InstName Q2 SYMATTR Value 2N2222 SYMBOL cap 1776 192 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 1µ SYMBOL res 1552 -32 R0 SYMATTR InstName R_collector1 SYMATTR Value 20k SYMBOL res 1552 400 R0 SYMATTR InstName R_emmitter_2 SYMATTR Value 10R SYMBOL voltage 1104 368 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V3 SYMATTR Value SINE(0 1 100k) SYMBOL res 1984 320 R0 SYMATTR InstName R2 SYMATTR Value 1Meg SYMBOL ind 1744 -32 R0 SYMATTR InstName L2 SYMATTR Value 100µ SYMATTR SpiceLine Rser=1m SYMBOL cap 1856 0 R0 SYMATTR InstName C4 SYMATTR Value 25.4n SYMBOL res 1232 256 M90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 100R TEXT 704 -632 Left 5 ;Class C amplifier TEXT 1176 616 Left 2 !.tran 0 300u 0 TEXT 208 -544 Left 4 ;Instructions TEXT 200 -496 Left 2 ;click on run\nthen click on "input" to plot it.\nthen click on the plot window then on plot settings / add plot pane\nthen click on "base" to plot it\nthen click on the plot window and plot settings/add plot pane\nthen click on "collector" to plot it\nthen click on the plot window and plot settings/add plot pane\nthen click on "output" to plot it\nthen click on the plot window and plot settings/add plot pane\nmove over to the circuit on the right and click on collector_2 to plot it. TEXT 696 280 Left 2 ;R3 is to give the node "out"\na Dc path to ground.\nSpice requires this. TEXT 1912 456 Left 2 ;R3 is to give the node "out"\na Dc path to ground.\nSpice requires this. TEXT 1144 -472 Left 4 ;Circuit description TEXT 1168 -416 Left 2 ;In the circuit on the left you can clearly see that the transistor \nis operated as a switch, \nas V(collector) is something like a square wave. \nin the circuit on the right the LC tuned circuit selects the 100khz\ncomponent from this square wave. TEXT -128 504 Left 1 ;You may republish or reuse this circuit implementation and text providing this line and the following lines are included.\nThis circuit implementation designed by Keith Wallbanks., Originally released on analogsimulation.co.uk\nThis circuit is provided as is without warranty of any kind. This text is intended to implement the MIT licence.