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Basic Circuits 1/5

10 Stage Coilgun - Version 2
13/10/2023 | by: ELECTRONOOBS      
PCB tesla coil SSTC
Tutorial on how to make a powerful coilgun with 10 stages coils. High voltage capacirtors and Thyristor control with infrared IR detectors. Super fast bulllet.

Tesla Coil on PCB
09/08/2023 | by: ELECTRONOOBS      
PCB tesla coil SSTC
Shocking powerful tesla coil on a PCB with gold windings and Bluetooth music receiver. Full tutorial, schematic, part list and how to make it.

Ferrofluid 3D printed Bluetooth Speaker
09/08/2023 | by: ELECTRONOOBS      
analog video camera schematic tutorial
3D print the enclosure and use an electromagnet with a simple equalizer amplification circuit and move ferrofluit with the rythm of the Bluetooth music.

10A Bharger/Protection Module
09/08/2023 | by: ELECTRONOOBS      
analog video camera schematic tutorial
Charge a Li-ion or Li-Po battery with undervoltage and overvoltage protection but also 10A output current limit BMS for those project that require more than only 2A.

Homemade Full SINE Inverter
19/03/2023 | by: ELECTRONOOBS      
analog video camera schematic tutorial
How to make a full sinusoidal inverter using the EGS002 driver board. Supplied with 12V from a battery and output 230V AC at 50Hz with SINE wave and 500W.

Dual Rail Supply
29/01/2023 | by: ELECTRONOOBS      
analog video camera schematic tutorial
How to make a circuit for a Dual rail supply for negative voltage homemade DIY. Center tapped transfoirmer, dual boost converter, small dual rail IC and more...

Planar Speaker Flexible PCB - Prototype V2.1
07/01/2023 | by: ELECTRONOOBS      
analog video camera schematic tutorial
How to design and make a high quality HiFi planar speaker with a flexible PCB and planar magnets and later make some 3D printed headphones with these planar speakers.

Powerful AC Dimmer circuit TRIAC + potentiometer
17/07/2022 | by: ELECTRONOOBS      
analog video camera schematic tutorial
Very easy circuit of a TRIAC AC dimmer with a DIAC and a potentiometer control. See the schematic and the needed components and make a homemade powerful AC powerdimmer

Washing Machine Universal Motor - Control speed with AC and DC
17/07/2022 | by: ELECTRONOOBS      
analog video camera schematic tutorial
Took this Universal brushed motor from an old washing machine. See how to control and the wire connection for this motor with DC and AC and get a lot of power out of it.

Full Vacuum Tube Audio Amplifier 6W + 6W - Dose it sound good?
12/03/2022 | by: ELECTRONOOBS      
analog video camera schematic tutorial
This is a kit with the vacuum tubes, the transformers and all the needed resistors and capacitors to make a vacuum tube power audio amplifier. Check the schematic, the part list and how to assemble this circuit.

Vacuum Tube Radio PCB
05/02/2022 | by: ELECTRONOOBS      
analog video camera schematic tutorial
Homemade AM radio based on vacuum tubes and a regenerative coil configuration. It uses 2P2 tubes and it has low power output but it works and we can receive AM radio channels. Learn how it works, see the schematic and test it out.

All about Capacitors!
30/01/2022 | by: ELECTRONOOBS      
analog video camera schematic tutorial
How a capacitor works. How to measure the charge, voltage, distance and dielectric configurations. How permittivity affects the capacitance. Cool experiment.

Super High Voltage Magic Wand
15/01/2022 | by: ELECTRONOOBS      
analog video camera schematic tutorial
Homemade high voltage magic wand with HV generator and voltage multipllier. Creates static electricity and cool experiments.

Powerful Coilgun PCB + multiple stages
04/12/2021 | by: ELECTRONOOBS      
analog video camera schematic tutorial
Homemade coilgun with separate PCB for each stage. Big coils, huge high voltage capacitors and thyristor control for powerful magnetic field. Very high speed metal bullet detected with phototransistors.

Vacuum Tube Pre-Amplifier PCB
20/11/2021 | by: ELECTRONOOBS      
analog video camera schematic tutorial
Homemade Vacuum Tube Preamplifier PCB design with analog parts and through hole components. Audio amplifier board with volume control and cool look, purple color.

Metal Detector Circuit and PCB
30/10/2021 | by: ELECTRONOOBS      
analog video camera schematic tutorial
Metal detector circuit and schematic with colis on the PCB. Detect metals and ring a buzzer and LED. Homemade detector.

TL431 delay timer circuit
26/09/2021 | by: ELECTRONOOBS      
analog video camera schematic tutorial
How to make a delay timer with the TL431 and select the delay tiem with the capacitor and resistor. See the schematic and the results.

TL431 undervoltage protection
26/09/2021 | by: ELECTRONOOBS      
analog video camera schematic tutorial
How to make an under voltage protection circuit with the TL431 and select the cutoff value with a resistor. See the schematic and the results.

TL431 Current Limiter Circuit - Fixed Value
26/09/2021 | by: ELECTRONOOBS      
analog video camera schematic tutorial
How to make a current limiter with the TL431 and select any value with a resistor. See the schematic and the results.





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