As such, their job responsibilities involved assigning prices for the company’s famed transformers, which often cost over ... Mullen was referring to a Friden mechanical calculator, a precursor to the ...

The Inverting Op-Amp Voltage and Gain Calculator is a powerful tool designed to help engineers, students, and hobbyists accurately compute the output voltage and gain of an inverting operational ...

Luckily, [Terry] at D-Lab Electronics has a few suggestions on budget-friendly transformers, and even shows off a nice three-tube audio amp using them. The reason transformers were and still are ...

The power amps, though, are where this build really shines. For the sub, [Gregory] built a wonderful monoblock tube amp, able to push nearly 300 watts into a subwoofer. The other channels for this ...