Tube Head Pre-amp

55 years ago

This is a simple and low cost Tube Head Vacuum Tube pre-amp circuit designed bu PAiA electronics: Vcc - Pin…

Touch Alarm System

55 years ago

Touch alarm circuit is widely used for security, which is installed on the door. The advantages of this alarm is…

Orange 125MK3 Guitar Mods

55 years ago

This document contains schematic diagram of Orange 125MK3 including the guitar preamp section, feedback and power amplifier section. Preview: (more…)

100W Inverter 12VDC to 220VAC

55 years ago

The following diagram is an inverter circuit which will give you 220V AC 50Hz with maximum power output of 100W.…

Solid State Relay

55 years ago

This is the circuit diagram of solid state relay. In reality, it is not a relay after all. There's no…

LEDs Temperature Indicator

55 years ago

A well-known IC LM35 is chosen to be the temperature sensor in this circuit. Output voltage of LM35 will increase…

12V Lead-Acid Battery Monitor

55 years ago

This easy circuit makes it possible to monitor the charging process to a higher level. Final adjustsments are simple and…

Automatic 9V Battery Charger

55 years ago

This is the scheme diagram of automatic 9V battery charger circuit, the parts list provided below the schematic image. The…

Mesa Boogie Dual Rectifier

55 years ago

The following diagram is Mesa Boogie dual rectifier solo head schematic diagram. This is a tubed pre-amp and tubed amplifier…

Motion Filter Effect

55 years ago

This motion filter effect circuit will controls the initial frequency and controls how much the envelope follower responds to the…