Elektor Electronics 304 Circuits Pdf !!hot!! Page
A simple two-transistor circuit controlling two motors and two LDRs. The robot chases a flashlight. It is the perfect first robotics project without a microcontroller.
Before downloading a random PDF from a suspicious website (risking malware), check Elektor's official "Vintage" or "Archive" section. Support the publishers who funded this research 40 years ago. elektor electronics 304 circuits pdf
| Vintage Part in PDF | Modern Equivalent | Notes | | :--- | :--- | :--- | | | 2N3904 or BC547 | Almost identical NPN signal transistor. | | BC177 / BC179 | 2N3906 or BC557 | PNP complementary pair. | | 741 Op-Amp | 741 (still made) or TL081 | TL081 is better (FET input). | | LM301 Op-Amp | LM301 or LM741 | Check the compensation pin; usually just ignore it. | | TDA2002 Audio Amp | TDA2003 or LM1875 | Check pinout; many are pin-compatible. | | Germanium Diodes (AA119) | 1N4148 or BAT42 | Schottky is fine for low-frequency detection. | | BZY88 Zener diodes | Any modern Zener (400mW or 1W) | Match the voltage (e.g., 5V1, 12V). | A simple two-transistor circuit controlling two motors and
If you are a vintage electronics enthusiast, a student of electrical engineering, or a hobbyist looking to learn fundamental circuit design, you have likely stumbled upon references to the compilation. Before downloading a random PDF from a suspicious
Elektor used European symbols. A resistor is a box, not a zigzag line. Capacitors are parallel lines. Pay attention to the —they are usually explicitly labeled.