Digital Circuits Tutorial

To design a Tube Headphone Amplifier we need a triode with uncommon characteristics: enough...

Diode Dl prevents negative spikes from occurring at the MOSFET gate, the 100 ohm resistor is a...

This circuit can be used to measure frequencies up to 40 MHz. To obtain the correct measured...

The battery-operated black light uses a U-shaped, unfiltered, black-light tube, which requires...

A simple FM transmitter links your home-entertainment arrangement to a carriageable radio that...

ART TPS2 is a starved tube mic preamp. One 12AX7 tube operating at about 50v plate voltage to add...

The ICL7665S Super CMOS Micropower Over/Under Voltage Detector contains two low power,...

Fig. 296 can use a control switch S El, E2 and E3 three lamp light off. E is suitable for the...