Schematics 1 (revised)
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A beginners book in electronics, ment for my You Tube viewers and everyone interested in electronics. Informative and useful to make a first start in electronics. Also useful for more experienced... More > people. With many schematics and illustrations (the content is extensively described in the preview on the Lulu website).This book is a revised version from a book under the same title, issued in 2008.< Less
two transistor sine wave oscillator 20 Hz - 19,2 KHz
eBook (PDF): $1.32
Schematic, layout and pictures from a two transistor (Wien bridge) sine wave oscillator (prototype) that works between 20 Hertz (15 Hertz) and 19,2 KHz. Easy to make, a real beginners project.... More > Including a schematic from the power supply and two schematics from 1 transistor amplifiers/buffers to which the generator can be connected. The circuit works on 12 Volt.< Less
3-7 Watt audio amplifier (TDA 1519 A or 2N3055 transistors) with tone control
eBook (PDF): $1.31
This document (20 pages, PDF file) describes a stereo amplifier, made with the TDA 1519 A Chip or with 2N3055 transistors (conventional amplifier with an output capacitor). Also the schematics from... More > two tone control units (a presence/loudness filter and a parallel T filter) are published. With these filters you can create the type of sound that you like in your audio system. The document refers to a series of video's on my Youtube channel (called: "developing a 6 (4) Watt stereo amplifier"), the circuit in this video is published here. The tone control/parallel T filter only works with 1 switch, so there is no separate control potentiometer for "low" and "high" frequencies. The amplifiers need a good quality loudspeaker box (with some bass boost) to show their good properties. The document does not supply a schematic for a power supply with which the amplifier can be connected to the grid (110-230 V - 50/60 Hz).< Less
2-10 MHz Shortwave receiver and 1 transistor VFO's
eBook (PDF): $4.28
Text: English. A book in which a schematic for a simple 5 transistor radio (excluded the audio amplifier) for Shortwave is published. Also a few VFO's are published to make this radio operational on... More > Shortwave. Please make the following corrections/adaptations to the text: a) page 17: the VFO signal is injected in the emitter from TS 2 b) page 25: the sentence "like the 2N2219" must be removed c) page 27: "medium power NPN transistor must be "medium power PNP transistor". On page 68 and 69: the BC 557 is a PNP (!) transistor, the arrow at the emitter is drawn in the wrong position (sorry, situation 10okt2015). All schematics are correct.< Less
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