Concentration test circuit
Saturday, November 20th, 2010This is the test concentration range, is ideal for a player to a game. Without a Net Amri alarm will be heard immediately. Operation of the circuit is to use Q1, Q2, R1, R2, R3, R4, C1 and C2 together astable multi vibrator is a rectangular waveform generator (Square Wave). It provides approximately 3 kHz [...]


