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ABOUT TECHNOLOGY AND ELECTRONICS-DIY
Tehnium magazine collection (2000 - 2006), explained in detail, with free download in digital format (.pdf).
Reading time: 4 minute Among the main topics presented in this issue, we list: Differential power supply of operational amplifiers; Adapter for sorting Zener diodes; Hafler DM200 amplifier; High-performance audio amplifier (30W); Insect removal; Electronic igniter; Aeroionizer; Old news: Nuvistoarele;
Reading time: 3 minute Among the main topics presented, we list: Voltage multipliers; Differential battery source; Switch controlled by parasitic signals; Double rectifier - double alternating; Time relay for ship models; Apparatus for regulating the intensity of electric current in single-phase welding transformers; Laser light barrier;
Reading time: 4 minute Among the main topics presented in this issue, we list: Filtration of rectified voltages; Charger for lead-acid batteries - sulfuric acid paste; Audio amplifier - Hi-Fi; Simplified calculation of toroidal transformers; Electric fences; Universal device for electric drilling machine; FM tuner;
Reading time: 5 minute Among the main topics presented in this issue, we list: Magnetic materials; AC rectification; Doubling the audio power; Mechanical stopwatch with electronic alarm; LM317 stabilized rectifier; MMC 22925/6/7/8; Digital frequency meter; Automatic hand dryer; Wired controlled static relay panel;
Reading time: 4 minute Among the main topics presented in this issue, we list: What would be useful to know about regression diodes for optimizing assembly performance; Automatic for water tanks; Speaker filters; Stereo digital potentiometer; Construction of plastic boxes; Modified FD4 antenna; Webra FMSI remote control station;
Reading time: 3 minute Among the main topics discussed in this issue, we list: SCSI (Small Computer System Interface); Hi-Fi audio preamps; Synchrodine receiver for 7 or 14 MHz; Maintaining soil moisture; Voltage regulating relay;
Reading time: 4 minute Among the main topics presented in this issue, we list: BIOS settings; Mobile phone alarm system; OR / 100/2 cathode ray tubes (B 10 S1) - Characteristics and use; Variable high voltage stabilizer; Christmas tree light sets; Drive - speed inverter; Use of quartz crystals in remote control stations; Frequency meter 30 MHz;
Reading time: 5 minute Among the main topics presented in this issue, we list: Voltage comparators - Applications in mini-automation; Electric motor with reciprocating motion; Cranial electronic simulator; Organ of lights or modulated light; Mechanics for electronics - Construction of tin boxes; Sound pressure of speakers; Hi-Fi amplifier with tone corrector; Electronic lightning; Sizing of single-phase transformers with powers up to 350W; Gradual light intensity; 5-channel Kraft transmitter;
Reading time: 4 minute Among the main topics discussed in this issue, we list: Mini-accumulators: operation-maintenance; Technical and practical considerations regarding the construction of TQWT type Hi-Fi acoustic enclosures; Sound chamber with coaxial speaker; High voltage source for laboratory; PC power supply; Digital clock; Electronic mixer for electric motors of two-propeller ship models;
Reading time: 4 minute Among the main topics presented in this issue, we list: Schmitt tipping circuit; Design of a Hi-Fi audio amplifier; Calibration of RLC measuring bridges; Automatic position holding system; Time relay with coupling delay; Bread oven automation equipment; Bread oven automation equipment; How do we build a 50g mule ?; Digital capacitance meter;