Search found 10 matches
- Thu Nov 11, 2004 6:51 am
- Forum: General Discussion
- Topic: BSII Pulls For Cheap...
- Replies: 2
- Views: 2121
Re: BSII Pulls For Cheap...
Sorry, you know what happens when ya ass-u-me.... <p>check out : http://www.parallax.com/detail.asp?product_id=BS2-IC for full specs and photos.
- Tue Nov 09, 2004 6:05 pm
- Forum: Robotics
- Topic: Basic Stamp Pulls For Sale
- Replies: 0
- Views: 2918
Basic Stamp Pulls For Sale
First, I am not in the business of selling stuff.<p>I just don't want these to go to the great storage shelf in the sky!<p>I have pulled a small quanity (40) of fully functional and clean Parallax Basic Stamp II's (Green Board) from some industrial controllers while upgrading a customers project rec...
- Tue Nov 09, 2004 6:02 pm
- Forum: Robotics
- Topic: Power inverter
- Replies: 2
- Views: 4093
Re: Power inverter
Google for Vanner, Outback or Trace ( they have changed their name I think... ) They all make stackable 120 V 4kw units that can be configured to output 240 VAC at 8kw. You can also use a step-up transformer to accomplish the same.<p>Good luck!
- Tue Nov 09, 2004 5:52 pm
- Forum: General Discussion
- Topic: Lamp Current vs Voltage
- Replies: 40
- Views: 27756
Re: Lamp Current vs Voltage
Carbon is a Negitive Coefficent Conductor. I used to run carbon arc projectors for movies. When the arc is established, the carbon of course heats to white hot and the current in the circuit DROPS to a relitivly stable point. Some units used this to automaticly adjust the arc gap with a spring and s...
- Tue Nov 09, 2004 3:24 pm
- Forum: General Discussion
- Topic: Large power diodes and IGBT
- Replies: 8
- Views: 3555
Re: Large power diodes and IGBT
Find the components you need at one of the mfgrs then fill out their free sample request form on line. ON, Freescale, (formerly Motorola) IRC etc. all have sample programs with great response.
- Tue Nov 09, 2004 12:56 pm
- Forum: General Discussion
- Topic: encoder chip
- Replies: 5
- Views: 2868
Re: encoder chip
Think about a low end PIC or other MPU... They cost about $2 and don't need much in the way of support components.
- Tue Nov 09, 2004 12:52 pm
- Forum: General Discussion
- Topic: Timer Specs
- Replies: 4
- Views: 2617
Re: Timer Specs
I posted the same reply to the other Thread too...<p>Stuff a PIC in the circuit... A simple timing loop will allow you to delay from millisecs to months! one of the 8 pin flash versions like the 12F629 is around $1 in low quanities and needs only a power supply & filter cap for external parts. C...
- Tue Nov 09, 2004 12:36 pm
- Forum: General Discussion
- Topic: Long Duration Timer
- Replies: 3
- Views: 2301
Re: Long Duration Timer
Stuff a PIC in the circuit... A simple timing loop will allow you to delay from millisecs to months! one of the 8 pin flash versions like the 12F629 is around $1 in low quanities and needs only a power supply & filter cap for external parts. Check out www.melabs.com for a slick programming packa...
- Tue Nov 09, 2004 12:20 pm
- Forum: General Discussion
- Topic: Metal detecting
- Replies: 20
- Views: 9567
Re: Metal detecting
How'a'bout using a radar (M/W) door opener? they are available on the surplus market cheap and will respond to a small metalic object passing in front of the antenna. Set up the sensitivity to activate for the size/distance to/through the plastic pipe... (I used a similar system to detect nails in w...
- Tue Nov 09, 2004 12:09 pm
- Forum: General Discussion
- Topic: BSII Pulls For Cheap...
- Replies: 2
- Views: 2121
BSII Pulls For Cheap...
First, I am not in the business of selling stuff.<p>I just don't want these to go to the great storage shelf in the sky! <p>I have pulled a small quanity (40) of fully functional and clean Parallax Basic Stamp II's (Green Board) from some industrial controllers while upgrading a customers project re...