mega328(GM328) Transistor Tester

  1. [Top][Home]
    Original Development Site:

    GM238 User Manual -PDF (local)
    GM328 DIY Kits
    -Digital LCD display for easy readings, can display measured data and graphics
    -Rotary switch control, a key measurement for convenient use
    -Main chip is the DIP, easy for electronic enthusiasts to DIY or update the main chip
    -Use 9V battery(not included), can also use DC power(DC 6.8-12V)
    -Automatic shutdown, shutdown current is only about 20nA
    -Automatically detects NPN and PNP transistors, FET, diodes, dual diode, thyristor, SCR,automatic identification of the transistor pinout.
    -Test NPN and PNP transistor common-emitter current amplification factor,
    the base-emitter threshold voltage, off the collector - emitter leakage current.
    -Support 2 resistors measurement, show its positive and negative, on-state voltage.
    -Resistance measurement maximum resolution 0.01Ω, can be measured up to 50MΩ.
    -Automatically test the pins of a component and show on the display.
    -Measure FET gate threshold voltage and gate capacitance.
    -For the following 2100Ω resistor while measuring its inductance measuring range from 0.01mH - 20H.
    -Can be used as signal generator and frequency meter: frequency range from 1Hz-2MHz
    and can generate 1%-99% PWM(pulse width modulation) signals
    Display: 160*128 LCD
    Power Supply :1 * 9V Battery(not included); DC 6.8-12V
    Current Approx. 30mA
    Resistance Measurement Max. 50MΩ
    Resistance Resolution 0.01Ω
    Capacitance Measurement 25pF~100mF
    Capacitance Resolution 1pF
    DC Voltage Measurement Up to 50V
    Screen Size Approx. 3.7 * 3cm / 1.45 * 1.18in
    PCB Size Approx. 7.8 * 6.2cm / 3.1 * 2.44in
    With optional Clear Case Cover:
    Dimensions: approx.83 x 83 x 30 mm


    Other References

    Instructables Writeup:


    Glenn Lyons VK4PK
    Ver:gnl20180615 - pre published v0.9