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Audio-test accessory isolates and matches loads - 16-Mar-06
Issue of EDN This low-cost, switchable, dual-impedance transformation
circuit comprises a single conventional transformer and two minimum-loss
pads.... [Design Idea by Richard M Kurzrok, RMK Consultants, Queens
Village, NY; Edited by Brad Thompson and Fran Granville]
Bipolar current-source maintains high output impedance at high frequencies
- 5-Dec-05 Issue of EDN Use line-receiver/amp ICs to build
high-frequency constant-current sources.... [Design Idea by Alex Birkett,
University College London, Hospital National Health Service, London, UK;
Edited by Brad Thompson and Fran Granville]
CMOS Logic Inverter Amplifier Characteristics - This chart shows some of the
measured characteristics of three different unbuffered CMOS logic gates, used as
voltage amplifiers. (added 12/04) …. [Designed by David A. Johnson]
Electric Field Disturbance Monitor - This schematic is the power supply and
front-end sections of the field monitor that is discussed in more detail at Electric
Field Disturbance Monitor. The system can detect human and animal motion by the
electric fields they disturb. ….
