2-Hour Digital Countdown Timer with LED Display (Fully Assembled)

A countdown digital timer which can be set to any time interval from 1 minute to 1 hour and 59 minutes. Once it has been set, it starts counting down until it reaches zero at which time the relay will be activated to turn on or off any equipment. It features a PC board mounted 4-digit 7-segment LED display. Relay: 3A @ 110V AC. Supply voltage: 12V AC C.T. @ 300mA.

Includes 52 page Training Manual 14 Transistors and 5 Diodes.

This small amplifier is constructed around the TDA1521 IC, with a maximum delivery capacity at 4 Ohm of 2 x 15 Wrms, or 2 x 10Wrms at 8 Ohm.