Electronics Infoline Web

Directinal Coupler Theoretical Information

http://www.ee.bilkent.edu.tr/~microwave/programs/magnetic/dcoupler/theory.htm

Directional & Non (Bi) Directional Test Points

difference between them

http://www.shol.com/kuggie/cttip/nondirectional.html

Directional Coupler

theoretical information and a on-line design/analysis tool

http://www.ee.bilkent.edu.tr/~microwave/programs/magnetic/dcoupler/dcoupler.htm

Discrete LDO Regulator

The discrete LDO design presented here came about because of the need for an LDO (low drop-out regulator) for 5V designs. There are better performing LDO parts, but they tend to be either single sourced or expensive. This one can be made from common compo

http://www.eclectic-web.co.uk/mike/ldo.htm

Discrete Multivibrator Schematic

astable multivibrator using discrete parts

http://www.repairfaq.org/REPAIR/F_samschem.html#SAMSCHEM_040

Distortion meter

http://www.intio.or.jp/jf10zl/hizumi.htm

Divide by 'N' counter

Simple circuit using 161s

http://www.wenzel.com/pdffiles/161divdr.pdf

Divide By 1.5 Counter

Two inexpensive ICs divide a TTL clock signal by 1.5. By following the circuit with another flip/flop you could also generate a divide by three function.

http://www.imagineeringezine.com/PDF-FILES/divider1.pdf