Most amplifier and oscillator circuits were originally designed during the vacuum-tube era, and they have been converted to transistors and ICs with modifications that relate primarily to the ...

Abstract: The response of circuits containing vacuum tubes with any number of electrodes due to ... by obtaining first and second order effects in typical three-electrode tube circuits. In a previous ...

R. E. Proc. of 1919, page 187. The use of the theory is illustrated by application to a simple modulator circuit. The numerical calculations in this case indicate that neglecting the effects of ...

it’s easy to point to instances where one could have just used a simple timer chip instead. Definitely not in the meme category, though, is this overkill vacuum tube 555 timer. It comes to us ...

Perhaps nothing added quite so much to the charm of vacuum tube circuits from back in the heyday of the vacuum tube as did the “Magic Eye” indicating tube. With the ghostly green glow of its ...