Hackaday (unofficial) December 16, 2023 9:00am Inside Electronic Gain Control #classichacks #electronicgaincontrol #jfet #opamp #hackaday posted by pod_feeder_v2 Inside Electronic Gain Control Normally, if you want to control the gain of an amplifier, you’ll use a variable resistor. You know, like a volume control. But what if you want to control the amplifier’s gain with a v…
Hackaday (unofficial) February 11, 2023 4:00am JFET Stands in For Triode in This Infinite Impedance Detector #radiohacks #am #demodulation #detector #if #jfet #rf #thermionicemission #triode #hackaday posted by pod_feeder_v2 JFET Stands In For Triode In This Infinite Impedance Detector An “Infinite Impedance Detector” might sound a little like something that [Zaphod Beeblebrox] would use to zip around the galaxy. It’s not, of course, but it is an interesting and…
Hackaday (unofficial) June 3, 2022 6:00am Practical Transistors: JFETs #mischacks #jfet #mosfet #transistor #hackaday posted by pod_feeder_v2 Practical Transistors: JFETs Transistors come in different flavors. Tubes used an electric field to regulate current flow, and researchers wanted to find something that worked the same way without the drawbacks like vacuum and…