Figure 1 Parts List The circuit has been designed for transistors to determine whether the pin is emitter, base or collector as well as the type if NPN...
Old transistors can make excellent regulators. Simply use one as a Zener to control the base cur-rent to another transistor (Fig. 68-35A). If the pass ...
Circuit performs and function first, then or function. For integrated-circuit construction, few isolated lands ore needed.-P. M. Thompson, Logic Princi...
The circuitshown in the chart usestime relay KT, pulse transistor JJSB1, time relay,and ithas normally open, normally closed contacts with adjustable t...
This article describes the One transistor FM receiver CIRCUIT (2N4416). The content is very simple, very helpful. Components in this article can help y...
It has been interesting analyzing these radios. You have to give the Japanese credit for even making a radio that can drive a speaker with only 2 trans...
This is simpledc voltageVariable regulator Circuit. I use the transistor 2SC1061 or H1061. It used for control current up to 1 Amp. The circuit use tra...
The picture shows the arithmetic product wave detector circuit composed of dual-electrode transistor. The action of the circuit likes a amplifier. But ...
Tests transistors and diodes for polarity Circuit diagram: Parts: R1,R2,R3,R10____10K 1/4W ResistorsR4,R5,R6_______100K 1/4W ResistorsR7,R8,R9________2...
Number of pulses generated each time switch St is operated increases linearly from 0 to 140 as battery voltage is increased from 11 to 35 v. Charge tra...
Shown is a schematic of a typical transistor AM radio. This circuit uses npn transistors. The circuit is generic; therefore, no specific values are giv...
This circuit designs to upward for divide by the frequency of a signal input , give down left just the half then to export come to the way output. Beca...
This is a Stereo VU Booster circuit. In this circuit,? shown in the schematic diagram, transistor FCS9014 is used. Actually you can use almost any type...
Use of complementary transistors virtually eliminates undesired offset voltages through cancelling action. Germanium transistors may be used in place o...
The relaxion oscillating circuit which is composed of uijunction transistor is showed as the picture (a).The initial voltage of capacitor is set to 0.T...
Sensors This metal detector circuit electronic project is an very simple circuit that is based on common electronic parts . This metal detector circuit...
Before touching the main topic of the invention history of the phototransistors, it is important to have a basic understanding on what phototransistors...
In the circuit, VT2 and VT3 are the multi-resonance oscillator circuit which is coupled by emitters, VT4 and VT5 compose the constant current circuit, ...
In the circuit, the adjustable prestage is composed of transistor AF279, and the natural oscillation mixer stage consists of transistor AF280. The powe...
The circuit below requires a double pole, double throw relay in conjunction with a single transistor to allow toggling the relay with a momentary push ...
Introduction to MOSFET-Metal Oxide Semiconductor Field Effect Transistor, MOSFET-Schematic symbol Metal-oxide-semiconductor field-effect transistor (MO...
Transistor DDC123JH, DDC123JH-7, DDC124EH-7, DDC143EH-7 internal circuit diagram is shown as below....
This is a circuit diagram Capacitance meter, where the circuits use transistors rather than the logic gate. On this circuit using a pnp transistor, you...
More than one phototransitor can be connected to a single voltage comparator. This would allow transistors to be placed along a section of track to ind...
This is simple circuit that illustrates the function of the programmable unijunction transistor. It may be quickly wired on a proto-board.PUT Flasher S...
Noise figure is 3 db and video bandwidth about 6 Mc. Used with uvicon camera tube for ultraviolent telescope，-R. N. Riggs, Ultraviolet Space Telescop...
Transistors Ql and Q2 are connected as a free running multivibrator. The output, at the emitter of Q2, drives the base of the common emitter amplifier ...
Falloff in beta with increasing collector current is displayed on auxiliary cro over range of 0 to 200 ma, for constant collector voltages up to 8 v.-R...
For integrated circuits, 100.ohm resistor in base lead of each transistor reduces waste curl rent, increases fan-out, and gives logic swing of 1 v.-A. ...
This article describes the LM317 Regulator With Pass Transistor (1N4002). The principle is very simple, very practical. The circuit components can help...
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