Product description
simple little kit with three animated LEDs. The LEDs are controlled by a phase shift oscillator, which despite the complicated name, is quite simple. The oscillator works by amplifying the small noise inherent in all transistors. Each step or transistor, inverts and further amplifies the noise. After the last step, the signal is fed back into the first transistor. The feedback makes the oscillation steady and with a frequency set by the resistors and capacitors connected to each transistor. An LED is connected to the collector of each transistor in the oscillator. The kit is suitable as a first solder practice or as a demonstration of transistors, self-amplification and oscillators.
* Supply voltage: ~3 - 9VDC
* Dimensions: 36 x 28mm