Explore Ham, Alex O'loughlin, and more!

PY1AHD ALEX - Alexandre Grimberg - py1ahd

PY1AHD ALEX - Alexandre Grimberg - py1ahd

pwm - Google'da Ara

pwm - Google'da Ara

pwm - Google'da Ara

pwm - Google'da Ara

Longwire Match For SW Receivers. Most shortwave receivers use a 50-ohm coaxial input which is not directly suitable for the high impedance of a typical long-wire antenna. The problem is usually overcome by inserting a balun  Unfortunately, such a balun may be difficult to obtain, make yourself, or both. The circuit shown here is a transistorized, inductor-free equivalent of the wire balun.

Most shortwave receivers for use ‘in the shack’ have a input (usually a socket) which is not directly

hamradio preselector - Recherche Google

hamradio preselector - Recherche Google

preselector-for-sw-receivers-schematic1.gif 600 × 422 pixels

preselector-for-sw-receivers-schematic1.gif 600 × 422 pixels

iv3sbe rybakov 806 hf multiband antenna

Build a multi-band vertical antenna for HF

Basic UPS Power Supply - circuit diagrams, schematics, electronic projects

basic ups circuit and dc schematic design - 28 images - uninterrupted power supply circuit diagram power supply, home circuits simple inverter, simple dc to dc converter power supply circuits, to dc converter schematic dc to ac conver

PWM Motor Control

This is a circuit to control motor speed uses pulse width modulation (PWM). The PWM signal is generated by the ubiquitous 555 timer and output current amplified by a power transistor.

pwm - Google'da Ara

pwm - Google'da Ara

Pinterest
Search