LM317T Voltage Regulator with Pass Transistor

This is demonstration video of homemade red laser. It uses high power LOC diode, LPC-815. I'm using an LM317T driver to supply 410ma to diode and delivering about 200-250mw (or more, don't know) with acrylic lens in axiz module. This laser cuts, melts, burns and more. And beam is great !!!



http://www.youtube.com/watch?v=3Aga4i3qXTw&hl=en

This video explains how to build a simple regulated power supply for a digital camera. It can be built to run on 120/110Vac or 220/240Vac. The voltage for the camera being used is 3.15-3.25VDC using the LM317 voltage regulator. Voltage calculator link: www.cpemma.co.uk



http://www.youtube.com/watch?v=DrXeof5rrnw&hl=en

Marine Diesel....with starter-generator. This Starter-Generator Combo unit is very simuliar to a golf-cart starter-generator. It's a Bosch Unit very much`like the ones used on early Harley-Davidson Gas powered 3 wheel golf carts. It came to me a mess. All the wires were twisted inside from miss handling of the main terminal. I restored the unit to like new condition and adapted a New Delco 12 volt Regulator to control it. A Ford Starter Relay works the "Start" side of the circuit. (Thats the bigger Red wire running behind the unit. This is a great addition to any small engine up to 20 hp not equipped with a starter or charging system. This little diesel has`a compression release to allow you to 'spin' the motor and use the heavy flywheel as help in starting an engine with 450-500 lbs compression as a diesel has. I can design these systems. Shop at 535 W Broadway Myrtle Beach SC 29577 843-455-8062



http://www.youtube.com/watch?v=Msz6HNB1-78&hl=en

This is the standard Ramsey TFM3 Tri-Field Meter, with my own custom additions to it. First is an LM317 voltage regulator circuit - I misspoke in the video - in fact it now runs on 9Volts (6 AAA batteries) regulated to about 5.5 Volts for proper power esp. in RF mode which tended to drain the battery too low. Next is an extending 1/4 wave antenna such as found commonly in an AM/FM radio - this was to enhance the RF pickup - which is broadband - as such it now picks up even footsteps across a rug, or you petting your dog or cat, and picks up my FM radio transmitter with no problem at all (which was an issue for some people I noted). And last I added a two-transistor sound generator circuit connected to ground and to resistor R30 which is the common input to the LM3914 IC chip in the unit. This video shows it picking up RF easily (probably my wireless network) and also an example of it picking up some RF when petting the cat. (Electrostatic action gives off RF.) Also shows the Electrostatic still works fine, and though I did not show it here, the Magnetic works fine too. Voltage Regulator: ( www.national.com ) Sound: ( www.instructables.com )



http://www.youtube.com/watch?v=5cG9Sl7Fnr4&hl=en

Police Siren Emulation. 12vdc input from battery, that's fed into a 555 timer which makes the BLUE LED Blink, I then have a 1k resistor from the output into the transistor which inverts the signal to switch the RED led on. I have a 2nd feed into an lm317t which knocks the voltage down to 2volts which gets fed into a CMOS Oscillator which is then boosted by a transistor which gets fed to the speaker to ground. End result is this...



http://www.youtube.com/watch?v=U08WilAcxGQ&hl=en

My new home-made mini power supply, with LCD meters for voltage and current. Weight : 1,5kg Type : Lineair Regulated Output Voltage : 1,3 - 29.4V @ 1,5A max. Regulator : LM317T Potentiometer : Vishay 10K 10Turn wirewound Transformer : sec. 24V 2,5A 60VA Casing : Aluminum With Steel Lid



http://www.youtube.com/watch?v=y2WGsA6CKIY&hl=en

Fuente voltaje variable con LM317T elektro-art.blogspot.com



http://www.youtube.com/watch?v=phMfvDEFlBI&hl=en