1 Hz signal generator ----- Signal Generator

1 Hz signal generator, Signal Generator Keywords: 1Hz signal generator 1 Hz signal generator I designed a frequency meter; to use a 1Hz signal generator, see the "Electronic News" "A method of extracting second pulses from quartz watch,", "The signal is obtained from both ends of the coil on June 13, 2004. And the coil solder in the watch is too small; it is difficult to operate, I will change it into the second signal from its power supply current, and the 100K ohm resistor R1 is obtained from both ends of the 100K ohm resistor R1 connected in series (equivalent to the 100K ohm resistor R1 in series with the 1.5V power supply The A, B is 2, and then the Q1, Q2 is enlarged by R2 and DWL, and then output from the collector. The parallel power supply of R3 and DW2 is 1.5V supply power supply, with three diodes to replace the regulator tube in series, and its stability is not too high, so its both ends must be connected in parallel C1. The R4 is the collector load of the Dalin Tube, and R5 is a bias current resistance, and C2 is a decoupling filter capacitor. After connecting Q1, Q2 into the Darrendton tube, its input impedance becomes very high, can be used instead of the junction field effect tube, and the gain ratio is high. Quartz watches choose an old one (some table pointers will not be gone, but still oscillate). The entire circuit is small, and a transparent plastic vase cap can be loaded into a diameter of 30 mm (see Figure 2).

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