CREI Electronics Design Laboratory 1974
1
Power Supply Section 470Ω .001 4 Sine + − 7 2 1 3 --12 +12 741 10uF --12 +12 --12 Trianagle 500Ω Symmetry 150k Frequency V co I n 82 k +5 22 k 15 k .001 x10 k Square 4 2 7 14 11 12 13 10 9 8 I C L 8 0 3 8 5 6 1 3 V+ .D.C. NC NC NC .F req FM Bias FM Sweep Ct V - Sin Adj ∿ .01 0.1uF x100 x1 VCO Function Generator Section Square +5 4 2 7 14 11 12 13 10 9 8 5 6 1 3 7440 Vcc Gnd .01 nc A +5 L1 +5 Vcc 4 2 7 14 11 12 13 10 9 8 5 6 1 3 7400 Gnd .01 .01 Vcc 4 2 7 14 11 12 13 10 9 8 5 6 1 3 7402 Gnd 150Ω L0 A B B nc L1 L0 L3 L2 150Ω L2 L3 Logic Section 1k +5 S0 S1 S2 S3 Substitutions 7420 replaces 7440 74LSxx replaces 74xx MC1468 replaces LM4501 with some modifications. 120 VAC 1000μf 25Vdc 7805 D-Pak 1 2 3 1μf +5V 1A Grn Grn Grn/Yel 500μf 50Vdc 500μf 50Vdc Red Red Red/Yel 100Ω 100Ω 2N4037 2N3053 LM4501N SG4501j 5 4 6 8 14 12 11 13 10 9 7 .01 .01 270Ω 27k 1 2 .01 .01 NC NC NC NC 3 270Ω V- Adj Gn d +Sense +Out +Sta b +In --In --Out --Sense --Stab 10μ +12/15V 100mA --12/15V 100mA 10μ Com 15 12 --22.7VDC 35VAC CT 19VAC CT 12VDC 22.7VDC Drawn by Robert Phillips, Westlake, Ohio CREI ELECTRONICS DESIGN LABORATORY April 2012
description
CREI Design Laboratory circa 1974 schematic diagram drawn by R Phillips April 2012
Transcript of CREI Electronics Design Laboratory 1974
PowerSupplySection
470Ω
.001
4
Sine+
−
7
21
3
--12 +12
741
10uF
--12
+12
--12 Trianagle
500Ω
Symmetry
150kFrequency
V co I n
82 k+ 5
22 k
15 k .001
x10 k
Square
4
2
7
14
11
12
13
10
9
8
ICL8038
5
6
1
3
V +
.D.C.
NCNC
NC
.F req
FM Bias FM Sweep
C t
V -
Sin Adj
∿
.01
0.1uF
x100
x1
VCOFunctionGeneratorSection
Square
+5
4
2
7
14
11
12
13
10
9
8
5
6
1
3
7440Vcc
Gnd
.01
nc
A+5
L1
+5Vcc
4
2
7
14
11
12
13
10
9
8
5
6
1
3
7400
Gnd
.01
.01
Vcc
4
2
7
14
11
12
13
10
9
8
5
6
1
3
7402
Gnd
150Ω
L0
A B B
nc
L1
L0
L3L2
150Ω
L2
L3
Logic Section
1k+5S0S1S2S3 Substitutions
7420 replaces 744074LSxx replaces 74xxMC1468 replaces LM4501 with somemodifications.
120VAC
1000µf25Vdc
7805D-Pak
1
2
3
1µf
+5V1A
Grn
Grn
Grn/Yel
500µf 50Vdc
500µf 50Vdc
Red
Red
Red/Yel
100Ω
100Ω
2N4037
2N3053
LM4501NSG4501j
5
4
6
8 14
12
11
13
10
97
.01
.01
270Ω
27k
1
2
.01
.01
NC
NC
NC
NC
3
270Ω
V-Adj
Gnd
+Sense
+Out
+Stab
+In
--In
--Out
--Sense
--Stab
10µ
+12/15V100mA
--12/15V100mA
10µ
Com
15
12--22.7VDC
35VAC CT
19VAC CT
12VDC
22.7VDC
Drawn by Robert Phillips, Westlake, Ohio
CREI ELECTRONICS DESIGN LABORATORY
April 2012
