5 Battery Powered MR2 - HIGH AMPS
We put a fluke DC Amp Meter in the trunk. Check out the Amps I'm pushing at 24 volts. [ go to Youtube.com ]
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20
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: 08/09/07 03:52
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Russian VFD-VU meter
I bought a bunch of them at eBay. They all need some work, there is one FET missing. I did not have a KP303B so I used a BF256C. The FET forms a constant current source that defines the 0-point of the vu meter. I think a BF245 would do also ... The spec sheet says that you need 6.3V AC current for heating of the VFD. I used a 5V DC and it works well. Besides the 5V you need +-15V dc regulated for the opamps and the logic chips. The +15V is also used for anode voltage of the VFD tube. [
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39
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: 14/01/08 21:10
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LEDs-buy.nl - Wireless V.U. Meter 15 LED's
You can order this kit at our webshop,
http://www.leds-buy.nl/wireless-meter-p-750.html
Specification
DC current: 150mA
Voltage: 9-12V
Number of LED's: 15
PCB dimentions (LxB): 53x88mm [
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24
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: 21/12/07 22:07
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Car mp3 fm transmitter/wireless Usb port china factory
Size: 10.6*4.2*2.9cm
Voltage: 12V DC
FM frequency: 7 FM channels (87.7,87.9,88.1,88.3,88.5,88.7,88.9MHz)
Channel switch: Press the CH key to switch preset channel
Audio source: USB flash disk or MP3 player
Transmitting distance: Up to 30
meters [
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Time
: 1 min
22
Added
: 30/12/07 16:27
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Drill Voltmeter
This is what happens when I charge my drill, it gets AC and DC at the battery! [
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21
Added
: 01/02/07 19:43
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