Schematic of 120 VDC power supply with regulation. You will need 50-150V of B+ (or plate voltage, because it is connected to the plate of the tube via R2) and about 1 mA to power this preamplifier.

Centravis noted that Ferrari recently released a limited edition of the new F80 sports car, boasting an engine power of 1,200 ...

Form-A-Tube, developed by Centennial Professor of Civil Engineering at the University of Arizona, Mo Ehsani, PhD, PE, SE., allows contractors to instantly construct forms for shoring up pilings ...