Post 16 made on Wednesday December 22, 2004 at 09:53 |
automan1 Founding Member |
Joined: Posts: | April 2002 393 |
|
|
" Doesn't transistors just decrease/increase voltage from one thing to another?" No.
To use a relay, get a SPDT or DPDT relay, with a coil appropriate for the voltage supplied.
To use a transistor, use any PNP with the appropriate V, I and P ratings. If the supply is AC, you'll need to rectify and filter this and apply it, through a resistor, to the base. When current is supplied to the base, the collector emitter remains high impedance, when the base voltage drops, the collector emitter 'shorts' (transistor turns on) to activate your load.
|
|
Please read the following: Unsolicited commercial advertisements are absolutely not permitted on this forum. Other private buy & sell messages should be posted to our
Marketplace. For information on how to advertise your service or product
click here. Remote Central reserves the right to remove or modify any post that is deemed inappropriate.