General Construction Notes

Component Datasheets

A variety of components are used in the various modules on this website.
Wherever possible designs utilise readily available components that can be easily
sourced or substitued by a number of alternative units.

The table below links to datasheets of most of the semiconductor components and,
where applicable, lists suitable alternatives.

Part #
Description
Alternatives
TL082
Dual BIFET Operational Amplifier
CA3140
BiMOS Operational Amplifier with MOSFET inputs and BiPolar outputs
CA3080
Operational Transconductance Amplifier (OTA)
LM311
Comparator
MAT-02
Dual-matched transistors used in VCO and VCF designs
LS312, LM394, EN2016, SSM2110
2N4856
N-channel JFET Transistor
6N138
Opto-isolator recommended for MIDI-IN circuits
MC1496
Balanced Modulator/Demodulator
uA726
Temperature controlled Differential pair
LF356H
JFET Operational Amplifier
4053
Triple 2-way CMOS switch
4002
Dual Quad-input NOR gate
2N3906
General PNP transistor
2N3904
General NPN transistor
741
Operational Amplifier
CA4136
Quad Operational Amplifier
LM324
Quad Operational Amplifier
LM723
Voltage Regulator
ICL8038
Precision Waveform Generator/Voltage Controlled Oscillator
AY-5-1013
UART - Universal Asynchronous Receiver-Transmitter
AM29F010
1 Megabit (131,072 x 8 Bit) CMOS, Sector Erase Flash Memory
4019
Quad AND-OR Select Gate
40174
Hex D-Type Flip-Flop
40103
8-Bit Binary - 8-Stage Presettable Synchronous Down Counter
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