Originally published in 2017. PDP-1 at Lawrence Livermore National Laboratory As you might have gathered from my projects, I am a bit of computer and electronics history buff. I’m old enough to actually remember using an 8-bit Heathkit H-89 computer...
Most of my project will relate to Ham Radio. However some may take a detour to evaluate other ideas in the electronics arena. I'm proud of posting one of my first projects, the Carbon Fiber Arrow Antenna. It wasn't intended as a pun on arrow antennas...
The HP 8647A is an excellent signal generator with a lousy power supply. Here is how to use an Artesyn LPT-103-M and an XP-Power EML30US36 to replace the dead original. CAREFULLY use a jeweler's screwdriver & magnifying glass to set the XP-Power to 38...
As parts of the passive components, resistors are components that are designed to impede or restrict the flow of electric current. Resistors are non-polar components, meaning they do not have polarity. However, there is a convention for reading resistor...
The LRS-150-24 power supply can operate from a 100–120 volt or 200–240 volt AC network. The manufacturer states it provides an output current of up to 6.5 amperes at 24 volts. The supply measures 5¾ × 3¾ × 1¼ inches (145 ×...
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