GM328A Transistor Tester
GM328A is a multifunctional device for checking and automatic detection of NPN and PNP transistors, field—effect transistors, diodes, paired diodes, LEDs, zener diodes, thyristors, chokes, resistances, capacitors with automatic detection of terminal caps of all components.
Microcontroller: Atmega328;
Supply voltage: 6 — 12V DC;
Working current: 30mA;
Display: 1.8-inch diagonal, 160 x 128 pixels resolution, 16-bit color depth;
Resistance measurement range: 0.01 Ohm — 50mohm;
Measuring range capacity: 25 pF — 100 UF;
Inductance measurement range: 0.01 MH — 20 Gn;
Frequency measurement range: 1 Hz — 1 MHz;
Voltage measurement range (DC): 0.01V — 50 V;
Rectangular pulse generator with frequency: 1 Hz — 2000000 Hz;
10-bit PWM: 5V value with modulation from 0 to 99%;
Defines: ESR, RLC, pinout of thyristors, triacs;
Determines the parameters of the diodes: voltage drop, junction capacitance, pinout;
Determines the parameters of transistors: type (NPN, PNP, N-P channel MOSFET), thyristors, JFET, pinout and displays the presence of a protective diode;
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