What Type of Switch Can Control Both a CD Drive and a Cassette Player Motor?

  • Thread starter Thread starter saad ahmed khan
  • Start date Start date
  • Tags Tags
    Switch
AI Thread Summary
To control both a CD drive and a cassette player motor with separate power supplies, a Double Pole Double Throw Centre-Off switch is recommended. This switch allows for selecting between the CD drive and the motor, while also providing an off position. When turned one way, it connects one set of wires, and the other way connects the second set, with the middle position leaving no contact. A visual diagram was requested but not provided due to technical limitations. This type of switch effectively manages the power supply for both devices.
saad ahmed khan
Messages
46
Reaction score
0
hello every one
i was wondering what type of switch should i use if i wanted to use two items namely a cd drive and a cassette player motor. both of them are connected to two separate power supplies which means two positve wires and two negative wires. i want to use that type of selector switch which can select between the cd drive and the motor and one selection for off position.
can anybody advise and also send me a pic and wiring diagram of the switch if any.
thanks
 
Engineering news on Phys.org
You need a Double Pole Double Throw Centre-Off type. Turning it one way will connect wires A & B together. The other way will connect wires C & D. The middle position leaves no contact at all.
I'll get into Paint in a while here and do up a sketch.

edit: No I won't. W's machine, which I'm working on now, doesn't have it. It'll have to wait until I can do it on the Mac and transfer it over to post.
 
Last edited:
Very basic question. Consider a 3-terminal device with terminals say A,B,C. Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL) establish two relationships between the 3 currents entering the terminals and the 3 terminal's voltage pairs respectively. So we have 2 equations in 6 unknowns. To proceed further we need two more (independent) equations in order to solve the circuit the 3-terminal device is connected to (basically one treats such a device as an unbalanced two-port...
suppose you have two capacitors with a 0.1 Farad value and 12 VDC rating. label these as A and B. label the terminals of each as 1 and 2. you also have a voltmeter with a 40 volt linear range for DC. you also have a 9 volt DC power supply fed by mains. you charge each capacitor to 9 volts with terminal 1 being - (negative) and terminal 2 being + (positive). you connect the voltmeter to terminal A2 and to terminal B1. does it read any voltage? can - of one capacitor discharge + of the...
Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...
Back
Top