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VCF 7b - 4 Pole 3900
Assembly
Press the overlay on the panel blank
Drill and clean the holes
Remove the application tape and cutouts
Mount the jacks, switches, pots ect... to the panel.
Install the (1) jumper. (Shown as a solid black line)
Install the resistors
Install the IC sockets
Install the capacitors
Cut and solder header strip pins in pads used to connect wire to the board
Plug the ICs into the sockets
Mount the L-Brackets to the board with 440 screws and nuts, using the non threaded end of the bracket
Mount the board to the panel with 440 screws using the threaded end of the bracket
Voltage controlled filter based on Arp
4072
4 Pole LP LM3900
+/-12 or +/- 15V
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Summary of Contents for EFM VCF 7b
- Page 1 VCF 7b - 4 Pole 3900 Voltage controlled filter based on Arp 4072 4 Pole LP LM3900 +/-12 or +/- 15V Assembly Press the overlay on the panel blank Drill and clean the holes Remove the application tape and cutouts Mount the jacks, switches, pots ect...
- Page 2 Wire the panel mounted parts to the header pins. PC Board Wiring Small Parts R9,11,13,16,19,21,24,27,29, 30,37,38,39 R7,8,12,14,17,18,22,23,26 R4,10,15,20,25,31,36 R1,2,3,28,30,32,33,34,35 100K C1,2,7 0.1uF C3,4,5,6 470pF Q1-Q10 2N3906 LM3900 TLO72 Full Parts 50K Pot 50K Trimmer Knobs Power Header L - Bracket Panel and Overlay...
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