+
9v
AC
ADAPTOR
INPUT
10k
1M
0.01
2
3
1
IC1a
22k
10uF
22k
100k
500k
0.05
0.05
8
4
470k
Vb
Vb
+9V
Resistors
1 - 4k7 (4.7k)
1 - 10k
3 - 22k
2 - 100k
2 - 220k
1 - 470k
2 - 1M
Capacitors
1 - 0.01μF
4 - 0.05μF
1 - 10μF
1 - 47μF
Transistors &ICs
IC1 - LM358
Q1, Q2 - NP4124 (use 2N3904)
1 - VTL5C2 (or LED/LDR)
Pots
1 - 500k
1 - 100k Log
Millennium
1 - 1N914 diode
1 - FET (2N5485 or similar)
1 - 2k2 (2.2k resistor)
1 - 4k7 (4.7k resistor)
1 - LED
Parts List
Schematic
LAYOUT
Dos Ochenta Compressor
Rev.4.Jan.17.2005
FP 2003
280 COMP
0
½
1
1½
2
0
½
1
1½
READY TO TRANSFER
Layout and presentation by Francisco Peña 2001-2005®.
All rights reserved. Authorization for personal use only,
any commercial use is forbidden.
Permission for posting/serving limited to
Permission refused for posting from other sites.
OUTPUT
LED
0.05
100k
6
5
7
IC1b
47uF
220k
22k
LDR
1M
220k
4k7
Vb
0.05
Q1
Q2
100k
Q2
Q1
S E N S
L E V E L
+
10uF
+
47uF
GND
IN
OUT
220k
220k
22k
22k
22k
100k
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- Fall '18
- Kutluhan Erol
