Download Elenco Electronics ST-751 Specifications

Parts List
Specifications
If you are a student, and any parts are missing or damaged, please see instructor or
bookstore. If you purchased this signal tracer kit from a distributor, catalog, etc., please
contact Elenco Electronics (address/phone/e-mail is at the back of this manual) for
additional assistance, if needed.
Injector:
Impedance 100W
Signal Level 75mV
Harmonic Spacing 1kHz
Pick Up:
Input Impedance 100,000W
Gain Adjustable 1 to 50
Resistors
Qty.
1
1
1
1
1
1
1
3
1
2
1
1
1
Symbol
Description
R6
R16
R10
R13
R14
R8
R5
R3, R9, R15
R12
R1, R2
R4
R7
R11
100W 5% 1/4W (brown-black-brown-gold)
220W 5% 1/4W (red-red-brown-gold)
1kW 5% 1/4W (brown-black-red-gold)
2.7kW 5% 1/4W (red-violet-red-gold)
3.9kW 5% 1/4W (orange-white-red-gold)
4.7kW 5% 1/4W (yellow-violet-red-gold)
6.8kW 5% 1/4W (blue-gray-red-gold)
10kW 5% 1/4W (brown-black-orange-gold)
47kW 5% 1/4W (yellow-violet-orange-gold)
100kW 5% 1/4W (brown-black-yellow-gold)
180kW 5% 1/4W (brown-gray-yellow-gold)
220kW 5% 1/4W (red-red-yellow-gold)
Trim Pot 220kW
Part #
Symbol
Description
C1
C2, C3, C7
C4,C5,C6,C9
.001mF Discap (102)
.1mF Discap (104)
10mF Electrolytic (Lytic)
Symbol
Description
D1
Q2
Q1
U1
D2
Diode 1N5234
Transistor 3904
Transistor MPS 5172
IC LM-358
LED Diode .125”
131000
132200
141000
142700
143900
144700
146800
151000
154700
161000
161800
162200
191622
Capacitors
Qty.
1
3
4
Part #
231035
251010
271045
DC Input Voltage: 5 to 40 volts
Input Current:
40mA max.
Customer Service
In the event that you encounter difficulty in getting the instrument
to work properly, write or e-mail ([email protected]) us and
explain: (1) the tests that you have made and (2) how the
instrument behaved during these tests. Our experience has
demonstrated that most difficulties can be corrected by an
exchange of letters or a phone call.
Semiconductors
Qty.
1
1
1
1
1
Part #
315234
323904
325172
330358
350001
If the instrument continues to work improperly and you would like
Elenco to locate the problem, send the unit along with a $10.00
check to our Service Department. They will repair, test the unit,
and return it to you with a brief report of the problem.
Miscellaneous
Qty.
1
1
1
1
1
1
1
2
1
1
1
1
1
12”
36”
2”
48”
Description
Part #
PC Board
Switch Slide DPDT
Probe Tip
Knob (white)
Earphone Jack
Case
Earphone 8W
Screw #4 x 5/8”
IC Socket 8-pin
Alligator Clip Black
Alligator Clip Red
Alligator Clip Green
Label
Wire
Cable 3-wire
Tubing #20 PVC
Solder
512751
541023
616001
622017
622102
623007
629350
643450
664008
680001
680002
680003
720510
815820
870801
890020
9ST4
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