Features: It can be widely used to detect NPN and PNP transistor, capacitor, resistor, diode, triode, N-channel and P-channel MOSFET, IGBT, JFET, triac and battery etc. It can also be used to detect infrared wave forms. It also can detect zener diode and has the function of self-calibration. One button operation, automatically detect and shutdown, and you can press the multi-functional button to close the detector too. Put the pins of component in corresponding area, then dial the little handle and the detector will test it automatically, finally the results will display on the back light TFT screen clearly.
Specifications: Display: 1.8 inch TFT Screen (Colour) Diode Range: < 4.5V Zener Diode:Transistor Detect Area: 0.01-4.5V Zener Diode Detect Area: 0.01-30V Triac Range: IGT < 6mA Capacitance: 25pF-100mF Resistor: 0.01-50MΩ Inductance: 0.01mH-20H Battery: 0.1-4.5V Power: Rechargeable Lithium Battery Size: 8.8 x 8 x 2.8cm / 3.47 x 3.15 x 1.10in Weight: 105g Included: 1 x Multi-functional TFT Transistor tester 1 x Electronic component set 3 x Test hooks
“Arch” 424 is a voltage-controlled oscillator. This VCO’s frequency range is wide, Can be used as VCLFO. It can produce four waveforms simultaneously: square, sawtooth, triangle, PWM and sine wave (sawtooth shape is not perfect yet). The frequency or pitch of the VCO is determined by tuning (Pitch and Fine) knob, and by the voltage present at the CV inputs.
You can control the pulse width of the square wave either by hand, or by voltage control – Pulse Width Modulation or PWM.
If perfect pitch is required better VCO is recommended. For a perfect sawtooth this is not recommended.