CREI Electronics Design Laboratory 1974

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Power Supply Section 470.001 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 150L0 A B B nc L1 L0 L3 L2 150L2 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 f +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
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CREI Design Laboratory circa 1974 schematic diagram drawn by R Phillips April 2012

Transcript of CREI Electronics Design Laboratory 1974

CREI ELECTRONICS DESIGN LABORATORY

Drawn by Robert Phillips, Westlake, OhioApril 2012 Grn 12VDC 120 VAC 1 Grn/Yel 19VAC CT Grn1000f 25Vdc

7805 D-Pak 2

3 1f

+5V 1A

22.7VDC 500f 50Vdc Red 100 Red/Yel 35VAC CT Red .01 270 2N4037 5 +Out LM4501N 7 +In SG4501j 3 +Sta .01 b 4 +Sense Gn d 11 --Sense .01 12 --Stab 10 --Out 8 --In .01 VAdj 14 27k 15 12 2 NC 6 NC 9 NC 13 NC 1 10

+12/15V 100mA

Com

270 2N3053 Power Supply Section 500f 50Vdc --22.7VDC 100

10

--12/15V 100mA

x10 k x100 x1 10uF 0.1uF .001

VCO Function Generator Section

2

+

1 741 Sine

3

7 4 --12 +12 Trianagle

--12

1 2

500 470 Frequency 150k .01 +12 Symmetry

3 4 5 6

NC 14 I C L NC 13 82 k 8 Sin Adj 12 0 V - 11 .D.C. 3 8 C t 10 .F req V+ 9 V co I n

NC

--12

+5 22 k Square

7 FM Bias FM Sweep 8 15 k .001

+5.01 L0 L1 150 L1 1 2 3 L0 4 5 6 7 Gnd S3 L2 150 7402 Vcc 14 13 12 11 10 9 8 S2 nc L3 L2 L3

A

A

Logic Section

B

B

Square

1 2 3 4 5 6 7 Gnd

7400

Vcc 14 13 12 11 10 9 8

+5

.01

1 2 3 4 5 6

7440

Vcc 14 13 12 11 10 9

+5 .01

nc

7

Gnd

8

S1

S0 1k

+5

Substitutions 7420 replaces 7440 74LSxx replaces 74xx MC1468 replaces LM4501 with some modifications.