# Semiconductors

Op-Amp - Orange, Dual Discrete, Low-Noise, 8-Pin DIP
The Dual Discrete op-amp is specially designed for audio and is among the most musical sounding dual discrete op-amps out there. It is available in DIP 8 format and can be used in any CD player, DAC, or preamplifier that currently runs DIP 8 based IC dual op-amp types. The overall soundstage and transient detail will be greatly improved when used in pretty much all audio equipment that it can physically be fitted to. It has a very low noise Jfet front end so it can run with input impedances above 1M Ohms if needed. It can replace the following, provided the equipment it’s being used in has 22mm of height clearance and 5mm side clearance (per side).
• OPA2604
• OPA2134
• TL072
• NE5532
• LM4562
• OP275
• OP285

Please check that the PSU can supply the extra current needed, especially if replacing more than one existing IC op-amp with our op-amp as with all discrete types, they do draw more current.
$55.00 Integrated Circuit - Marshall, TDA7293 amplifier 120V - 100W DMOS audio amplifier with mute/standby. The TDA7293 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier in Hi-Fi field applications, such as home stereo, self powered loudspeakers and Topclass TV. Thanks to the wide voltage range and to the high output current capability it is able to supply the highest power into both 4-Ω and 8-Ω loads.$11.95
Integrated Circuit - Fender®, Power Amp PC1188H
PC 1188H Power Amp - Fender The PC1188H is a monolithic integrated circuit and a power amplifier designed for Hi-Fi audio sets. The PC1188H can provide 20W (typical) to 8 ohms at 1% T.H.D. and +/- 22V supply voltage. Features:
• High output power
• Low distortion
• Wide frequency bandwidth
• A muting function which eliminates pop on noise and the thermal and the over current protection circuit
$9.50 Analog Switch IC - DG212CJ, for Marshall, Quad SPST, 16-Pin DIP DG212CJ, used in certain Marshall amplifiers. The DG212 are low cost quad single-pole single-throw analog switches for use in general purpose switching applications in communication, instrumentation and process control.$7.50
Audio Power Amplifier - LM386N-1, Low Voltage
LM386 Low Voltage Audio Power Amplifier The LM386 is a mono low voltage amplifier that can be used in a variety of applications. It can drive loads from 4 Ω to 32 Ω. The gain is internally set to 20 but it can be modified from 20 to 200 by placing a resistor and capacitor between pins 1 and 8. As this is an Op Amp it can be used in different configurations to fit in several applications. The internal gain setting resistor allows the LM386 to be used in a very low part count system. In addition a series resistor can be placed between pins 1 and 5 to modify the gain and frequency response for specific applications. These are found in many small audio amplifiers and even tiny pedal sized guitar amplifiers! There are tons of possibilities for this little Op Amp.
$1.25 Op-Amp - NE5532, Dual, Low-Noise, 8-Pin DIP This a high performance dual low noise operational amplifier. Compared to the standard dual operational amplifiers, such as the NJM1458, it shows better noise performance, improved output drive capability, and considerably higher small-signal and power bandwidths. it is compensated internally for voltage follower circuit. This makes the device especially suitable for application in high quality and professional audio equipment, instrumentation, control circuits, and telephone channel amplifiers Features: • Operating Voltage = ±3V$±22V • Small Signal Bandwidth = 10MHz typ. • Output Drive Capability = 600Ω,10Vrms typ. • Input Noise Voltage = 5nV/√Hz typ. • Power Bandwidth = 140kHz typ. • Slew Rate = 8V/µs typ. • Bipolar Technology$1.15 Op-Amp - TL074, Quad, Low-Noise, JFET Input, 14-Pin DIP Low noise JFET quad operational amplifier. Incorporates well matched, high-voltage JFET and bipolar transistors in a monolithic integrated circuit. Features high slew rates, low input bias and offset currents, and low offset voltage temperature coefficients. Features: • Wide common-mode and differential voltage range • Low input bias and offset current • Low noise en = 15 nV/HZ • Output short-circuit protection • High input impedance JFET input stage • Low harmonic distortion: 0.01% • Internal frequency compensation • Latch up free operation • High slew rate: 16 V/us (typical) $1.15 Op-Amp - BA4560, Dual, General Purpose, 8-Pin DIP The BA4560, is a dual operational amplifiers which achieves approximately twice the high output current of the BA4558, as well as featuring a higher slew rate of 4V / µs, a gain band width of 10MHz, and an improved frequency characteristic. 8-pin DIP package.$0.95 Op-Amp - LM741, Single, 8-Pin DIP LM741 single opamp in an 8-pin DIP package. The LM741 has been used in classic guitar pedals such as the Distortion Plus. The LM741 series are general purpose operational amplifiers which feature improved performance over industry standards like the LM709. They are direct, plug-in replacements for the 709C, LM201, MC1439 and 748 in most applications. The amplifiers offer many features which make their application nearly foolproof: overload protection on the input and output, no latch-up when the common mode range is exceeded, as well as freedom from oscillations. $0.79 Integrated Circuit - PT2399, Echo / Delay PT2399 echo/delay chip used in many DIY and commercial pedals. The PT2399 is in a DIP 16 package. Minimal external components are required for use and delay time is set with resistance.$0.78 Op-Amp - 4558, Dual, 8-Pin DIP Dual Operational Amplifier. The 4558 integrated circuit is a dual high-gain operational amplifier internally compensated and constructed on a single silicon chip using an advanced epitaxial process. Combining the features of the NJM741 with the close parameter matching and tracking of a dual device on a monolithic chip results in unique performance characteristics. Excellent channel separation allows the use of the dual device in single NJM741 operational amplifier applications providing density. It is especially well suited for applications in differential-in, differential-out as well as in potentiometric amplifiers and where gain and phase matched channels are mandatory. Features: • Operating Voltage (±4V$±18V)
• High Voltage Gain (100dB typ.)
• High Input Resistance (5MΩ typ.)
• Bipolar Technology
$0.75 Op-Amp - TL072, Dual, Low-Noise, JFET Input, 8-Pin DIP The TL072 is a high speed JFET input dual operational amplifier incorporating well matched, high voltage JFET and bipolar transistors in a monolithic integrated circuit. The device features high slew rates, low input bias and offset current, and low offset voltage temperature coefficient.$0.70
Op-Amp - LF353, Dual, Wide-Bandwidth, JFET Input, 8-Pin DIP
Dual wide-bandwidth LF353 opamps in an 8-pin DIP package. The LF353 offers a high input impedance and 3MHz bandwidth.
This LF353 device is a low-cost, high-speed, JFET input operational amplifier with very low input offset voltage. It requires low supply current yet maintains a large gain-bandwidth product and a fast slew rate. In addition, the matched high-voltage JFET input provides very low input bias and offset currents.
$0.34 Op-Amp - TL062, Dual, Low-Power, JFET Input, 8-Pin DIP Dual low power opamps in an 8-pin DIP package. The TL062 offers a high input impedance and 1MHz bandwidth.$0.28
Op-Amp - TL082, Dual, Wide-Bandwidth, JFET Input, 8-Pin DIP
Dual wide-bandwidth TL082 opamps in an 8-pin DIP package. The TL082 offers a high input impedance and 4MHz bandwidth.
$0.21 Op-Amp - LM324, Quad, Low-Power, 14-Pin DIP Quad low-power opamps in an 14-pin DIP package. The LM324 offers a 1MHz bandwidth and can be powered from a single supply.$0.18
IC Socket - Dual Leaf, For Dip Packages, 7.62" Row Spacing
IC sockets can be soldered into PCBs, stripboard, or padboard and the IC can then be inserted into it instead of soldering the IC directly to the board. IC sockets are optional, but using one allows you to easily swap out ICs (e.g. to compare various op amps in a working circuit), easily replace ICs if one fails, and protects the IC from excess heat when soldering.
Starting at \$0.15
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