Search results for: 'transistor'
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- Transistors
- transistor checker
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- 3 1/2 Digital meter w hold & backlight$16.95
SKU: DVM850BL
Automatic Polarity function. Measures: DC current up to 10A, AC and DC voltage up to 600V, resistance up to 2Mohm. Diode, transistor and audible test. Learn More - Light/Dark Relay Switch Kit$12.95
SKU: QK79A
Light/Dark Relay Switch Kit using Transistors - WSL
Replacement FK403
Learn More - Two Stage FM Transmitter Kit$6.95
SKU: QK32
A powerful two stage FM transmitter kit with an RF transistor (PN3563 or ZTX320) in the output stage.
9V operation. On/off switch mounted on the circuit board. Learn More -
- 1 Channel Relay Card (with Toggle Mode)$7.95
SKU: MXA016
1 Channel Relay Card with toggle mode for use with MXA015 UHF TX/RX or MXA013 10 CH TX/RX
Fully Assembled & Tested Module
Learn More - Speed Controller Kit$25.00
SKU: QK67
Control the speed of any common DC motor rated up to 100V (5A) uses IRF630. Operates on 5V to 15V. Uses NE556 to pulse-width modulate a high current switching power transistor, TIP122. In this way motor torque is maintained. Adjustable speed control. Box mounted. Learn More - Light Alarm Kit$17.50
SKU: QK8
Detects the slightest light. Uses Darlington phototransistor MEL12 & 14011. Good introduction to several electronic building blocks especially NAND gate operation and how to get a piezo to sound loudly by using a choke coil. Learn More - 100 Watt Stereo Power Amplifier Kit$68.95
SKU: FK667
This kit is a class AB 100 watt stereo power amplifier Learn More - IC SENSOR PREC CENTIGRADE TEMP$12.25
SKU: LM35
Temperature Sensor, Temperature Range -40C to +110C, this is the TO 92 package. Learn More - 200 Watt Power Amplifier Module$99.99
SKU: VM100
Discrete design using Epitaxial Darlington transistors
DC supply circuit on board with LED indication
ideal for active speaker system or subwoofer, guitar amp, home theatre systems, instrument amp, etc.
Fully assembled and tested Learn More - 250mW Power Amplifier Kit$16.95
SKU: QK171
This project is a simple 2-transistor VHF power amplifier, with about 16dB gain, and requires no tuning or alignment procedures. Wideband techniques have been used in the design and the circuit is equipped with a "low-pass" filter to ensure good output spectral purity. Learn More - Oscillator Building Blocks Learning Kit$10.25
SKU: QK9
Demonstrates the three basic multivibrator oscillator circuits - the monostable, the bistable and the astable. Multivibrator circuits are everywhere in modern electronics. Uses LEDs to demonstrate each one. Full documentation enclosed. Learn More - USB PIC Programmer Module (Pre assembled)$78.95
SKU: QK150
USB 40 Pin PIC Programmer!DISCONTINUED Learn More
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- EEPROM Programmer Kit$4.95
SKU: QK151
PC parallel port programmer for 24xxx and 93xxx EEPROMs
Learn More - Opto isolated Relay card information$0.00
SKU: RLYINFO
Notes on the optically isolated relay cards. Learn More - Large LED Clock Kit$74.95
SKU: QK73
Big digital clock kit using 2.3" LED displays for the hours and minutes. It can operate in 12-hour or 24-hour mode. The software program including a time adjustment mode can control the clock from a few seconds a year. Learn More
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