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Parts List and Subtitutions

Below is a list of parts (some that have proven tough to find), and current availability...
(Use at your own risk!)


Board Description Index Reference Part Description Quantity Used Substitution 1
Substitution 2
Substitution 3
Power Supply (Board 3) CR3 Diode 1N821 1
1N821 Exact replacement
1N821A 'A' is apparently insignificant
?
Power Supply (Board 3) CR1,CR2 Diode 1N458 2
1N458A 'A' is apparently insignificant
? ?
Power Supply (Board 3) Q1 Transistor MPS-U55 1
MPSU55 Exact replacement!
NTE189
NTE189
Expensive
Power Supply (Board 3) Q2, Q5, Q10 Transistor TIS92 3
TIS92 Exact replacement
MPSA05 Per here
NTE123AP Per NTE xref
Power Supply (Board 3) Q3, Q4, Q6, Q12, Q17, Q18, Q15 Transistor 2N3392 7
2N3392 Exact Replacement!
NTE199 Per NTE xref
?
Power Supply (Board 3) Q7, Q8, Q9 Transistor 2N4058 3
2N4058 Exact Replacement!
NTE234 Per NTE xref
?
Power Supply (Board 3) Q11, Q16, Q19 Transistor TIS93 3
TIS93 Exact Replacement!
NTE159 Per NTE xref
2N3906 Per Moog Parts List (Q19 only?)
Power Supply (Board 3) Q13, Q14 Transistor TIS97 2
TIS97 Exact Replacement!
NTE199 Per NTE xref
?
Power Supply (Board 3) Q20 Transistor MPS-U05 1
MPS-U05 Exact replacement!
NTE188
NTE188
Per here
MJE3055T Per here
Rectifier (Board 5) CR1, CR2, CR3, CR4 Diode 1N4004 4
1N4004 Exact replacement
? ?
Front Panel S3 - S8 2 Pole 6 Position Rotary Switch 6
Switch Not sure about these
Switch Not sure about these
Switch Not sure about these
Oscillator (Board 1)
741 Op Amp 8
741 Exact Replacement
741 Exact Replacement
?
Oscillator (Board 1)
3046 / SG3821 Transistor Array 8
LM3046 Exact Replacement
CA3046 Exact Replacement
NTE912 Per NTE xref
Oscillator (Board 1)
2N3392 17
2N3392 Exact Replacement
? ?
Oscillator (Board 1)
2N3906 6
2N3906 Exact Replacement
? ?
Oscillator (Board 1)
E402 3
LS3954Acquired by contacting Linear Integrated Systems by phone. Per here
NTE461 Per here
LS841 Per here
Oscillator (Board 1)
2N4402 3
2N4402BU Exact Replacement
NTE159 Per NTE xref
?
Oscillator (Board 1)
Transistor 2N4058 10
2N4058 Exact Replacement!
NTE234 Per NTE xref
?
Dual Contour (Board 2)
1N34A 5
1N34A Exact Replacement!
NTE110MP Per NTE xref
?
Dual Contour (Board 2)
Diode 1N4004 5
1N4004 Exact replacement
? ?
Oscillator (Board 1)
1k Tempco Resistor 3
PT146 Per here
? ?
Dual Contour (Board 2)
Transistor 2N3392 17
2N3392 Exact Replacement!
NTE199 Per NTE xref
?
Dual Contour (Board 2)
Transistor TIS93 7
TIS93 Exact Replacement!
NTE159 Per NTE xref
?
Dual Contour (Board 2)
Transistor TIS92 2
TIS92 Exact replacement
MPSA05 Per here
NTE123AP Per NTE xref
Dual Contour (Board 2)
Transistor 2N4303 2
2N4303 Exact replacement
NTE133 Per NTE xref
NTE457 Per ECG xref to NTE xref
Dual Contour (Board 2)
Transistor 2N3415 2
2N3415 Exact replacement
NTE85 Per NTE xref
NTE289A Per ECG xref to NTE xref
Filter
Diode 1N4148 2
1N4148 Exact replacement
NTE519 Per NTE xref


Ĉ Capacitors.xls
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Optimized list of capacitors  22k v. 1 Nov 25, 2009, 12:17 AM J R
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  124k v. 1 Nov 15, 2009, 1:25 AM J R
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  117k v. 1 Nov 15, 2009, 1:26 AM J R
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  113k v. 1 Nov 15, 2009, 1:26 AM J R
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  89k v. 1 Nov 15, 2009, 1:26 AM J R
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  93k v. 1 Nov 15, 2009, 1:26 AM J R
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  105k v. 1 Nov 15, 2009, 1:27 AM J R
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  105k v. 1 Nov 15, 2009, 1:27 AM J R
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  110k v. 1 Nov 15, 2009, 1:27 AM J R
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  114k v. 1 Nov 15, 2009, 1:27 AM J R
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  80k v. 1 Nov 15, 2009, 1:27 AM J R
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  117k v. 1 Nov 15, 2009, 1:28 AM J R
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  111k v. 1 Nov 15, 2009, 1:28 AM J R
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  94k v. 1 Nov 15, 2009, 1:28 AM J R
Ĉ Resistors.xls
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Optimized List of resistors for all circuits (merges duplicate resistors that only differ by tolerance or power -- selecting lowest applicable tolerance and highest applicable power).  73k v. 1 Nov 24, 2009, 11:41 PM J R
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