Electronics Infoline Web

Broadband 5 MHz optical fiber receiver

simple broad band light detector that uses a very inexpensive IC and a PIN photodiode that is packaged for use with plastic optical fibers, bandwidth from 1KHz to over 5MHz

http://www.imagineeringezine.com/PDF-FILES/5mhzfbvr.pdf

Broadcast-Band RF Amplifier

The circuit has frequency response ranging from 100Hz to 3MHz; gain is about 30dB.

http://www.uoguelph.ca/~antoon/circ/broadcast.html

Buck-converter charger also provides system power

switching regulator provides the charge-voltage setpoint with current regulation, and second switching regulator provides 5V system power.

http://www.edn.com/archives/1997/052297/11di_04.htm

Buffer Hardware for xoscope

This circuit is a buffer between oscilloscope probes and sound card. It provides amplification and protection against high voltage input signals.

http://xoscope.sourceforge.net/hardware/hardware.html

Buffered Headphone Driver/Preamplifier

With a fast Motorola buffer as its only active circuitry, this design specifies the highest quality parts and careful construction to avoid signal coloration. The author includes instructions for substituting other buffer ICs.

http://headwize.com/projects/showfile.php?file=pawliw1_prj.htm