electronics

Amazon.com: Edirol R-09HR High-Resolution WAVE/MP3 Recorder

Based on the reviews, this is the much improved version of the R-09. $310.00

  | Jun 8, 2009

Amazon.com: Zoom H2 Handy Portable Stereo Recorder

Very good reviews. Similar in features to the Edirol but is half the price, $155.00

  | Jun 8, 2009

5 to 30 Minute Timer

  | Feb 18, 2009

Automatically Repeating Interval-Timer Circuit

This timer is for longer intervals - up to 24 hours.

  | Feb 18, 2009

Ramsey Electronics - Velleman 1A Power Supply Kit

LM317 Adjustable output, $12.95, no heatsink, $10 shipping

  | Feb 16, 2008

Circuit Specialists - KIT 60 - 3 Terminal 78xx Regulated Power Supply Kit

$12 + $11 shipping, no PayPal

  | Feb 16, 2008

Electronic Project Kits - 78xx Regulated Power Supply

$10 + $9 shipping, no PayPal

  | Feb 16, 2008

Digital Intervalometer

Homemade kit using (2) 555 timers, a relay, and a 7808 for power regulation.

  | Feb 10, 2008

Universal Voltage Regulator Kit

kit using a 7808 for 8V output.

  | Feb 10, 2008

Parts Express:Velleman 1A 1.5V-35V Power Supply Kit

Uses a LM317, kit is $12.90 plus $9 shipping, no PayPal

  | Feb 10, 2008

Kit 60 - Regulated Power Supply

User supplies a standard 3 pin voltage regulator from 5 volts (using a 7805) to 24 volts (7824). Large heatsink included. $11 BUT $14 for shipping!

  | Feb 10, 2008

Kit 60 - 3 Terminal 78xx Regulated Power Supply

Another site with the same kit. $11 BUT $11 for shipping and $200 minimum order outside of Canada!

  | Feb 10, 2008

Strobo controller

  | Feb 9, 2008

Simple 5V power supply

A schematic for using a 7805 for 5V or a 7808 for 8V.

  | Feb 9, 2008