Get some parts on Saturday and Mon - Fri,
in my area:
HSC Electronic Supply, (408) 732-1573
Link
Map
Anchor Electronics, (408) 727-3693
Link
Map
Jameco Electronics, No walk-in on Saturday, (650) 592-8097
Link
Map
Jameco's
Feb 2010, Num 101 Catalog PDF (~20 meg) is useful to view before searching
their site.
T & T Machining, Open Saturday when needed, (408) 452-7595
Link
Map
Grounding Techniques - A few old (~1983) application notes from Analog Devices that I recently ran across, again. (2meg Acrobat PDF file)
KODAK WRATTEN Gelatin Filter - This is a source of these useful items (Color Filters).
Linear Amplifier - Operating Manual -
Frequency Response DC – 30kHz +0.1 – 0.5dB Phase
Response +/- 8.3 degrees (10Hz - 10kHz)
Unit to Unit Phase Error +/- 0.1 degrees at 60Hz
Maximum continuous output power 6600 watts rms
Output offset current Less than 10 milliamperes dc
Input Balanced with ground: three terminal barrier block connector 20k
ohm differential. Unbalanced: BNC connector, 10k ohm single ended.
Gain 20 volts/volt (voltage mode) 20 amperes/volt (current
mode)
Residual Noise DC - 30kHz Less than 75 microvolts, DC - 100kHz Less than
1 millivolt
Slew Rate 41 volts per microsecond
Manual with
Schematics.zip
Excalibur RPN Bernazzani
This calculator has been very useful to me.
| Note: To avoid MicroSoft XP's problems with a web sources incoming Help File (.chm), send this downloaded zip to an SD Card ect.. Next, Copy Paste from the SD Card to your hard drive. You may need to eject the Card and reload it before the hard drive step. |
Take one for yourself.. RPN Calculator by David Bernazzani.
CD SHREDDER
- As
I was cleaning up my office, I decided it was time to throw out the old backup
CDs. I needed to remove the old data and I had about 100 CDs to get rid of. How
should I do this?
Use a Microwave Oven ! - An interesting smoke and a spark show
occurs, but
I have not hurt my Micro Wave Oven. I spread out the CDs, 10 to 20+, and run the oven for
about 5 to 10 seconds. Ventilate the area of the microwave, and don't breathe
the smoke.
Note: This works on DVDs as well.
Time Clock - A friend helped me find a program named: Trax Time and for about $40USD it can be registered. This program works very well, and I have used it for many years. The program logs time spent on various projects and allows one to report the output in several useful formats. Web Site of Trax Time.