[Led display Digital Voltmeter question]

if the input is 5.6v will it read 5.6 or only 5????

[Kenwood KDC-C800 Wiring Diagram]

Can I somehow plug just some pins to conect a Diskman in the CD Changer slot, this way the radio will "read" the Diskman to the speakers???

[Kenwood KDC-C800 Wiring Diagram]

Does anyone have the wiring diagram for the 13-pin cable of the KDC-C800 Kenwood CD Changer ???

Tks,
Christiano.

[Adjustable Strobe Light]

I found these options:

http://www.hut.fi/Misc/Electronics/circuits/strobo_12v.html 12V stroboscope

http://www.aaroncake.net/circuits/inverter.htm 12VDC to 120VAC inverter

[Adjustable Strobe Light]

http://www.electronics-lab.com/projects/motor_light/005/

This project is designed for 120V, but I intend to use it in my car.
What happens if I use the 12V battery?

Is it a good idea to make the 12V become 120V???
If it is, how can I make it?

Tks in advance,
Christiano.

[22 Watt Amplifier]

That's why I love smart people... eheheh...

I'll biuld a FM transmitter...

Is there anyone that you recommend??

I've found this one...:
http://www.electronics-lab.com/projects/rf/023/index.html
Is it good???

Tks in advance,
Christiano.

[22 Watt Amplifier]

I don't have another amplifier for the speakers.... Only the stereo...

I was going to plug the output of the device directly on the wires that go to the speakers.

[22 Watt Amplifier]

Did someone build this??

Does it work well???

How loud can 22 Watt get??? Enough to increase a discman output into an auto's speakers (Two 200W, 4 Ohms Pioneer, on the back)?

If not, which device should I build???

http://www.electronics-lab.com/projects/audio/006/index.html

[Inductor]

I'm trying to build the damn TV Signal Amplifier but it came without some important information... Like the lenght of the Inductor or its inductance...

I am assuming that its lenght is 0.72 cm. ( Number I came through an insane proportion of sizes from an image of the circuit that I'm trying)
This way, using Quantum's equation: (8^2 * 0.05^2) / 0.0072, resulting ~22

I will assume too, that the distance among turns is 0.

[Inductor]

I just can't find an specific inductor...
It only says that it must have:
Diam: 5 mm
Wire: 0,5 mm
Turns: 8

What should be it's inductance??? How can I calculate it???

Can I replace it somehow?? With some resistor, another inductor, ow something??

Does the distance between turns affects the component???

Tks,
Christiano.

[TV Signal Amplifier - Part II]

Just for the record...

The HOT is the inner copper cable
and the SHIELD is the outer silver twisted wires,

right???

[TV Signal Amplifier - Part II]

http://www.electronics-lab.com/projects/rf/003/


TV Signal comes by a coaxial cable, this way, there are 2 wires...

The signal from the antenna is applied to the input of the circuit and through C5 is fed to the base of the transistor.

I can see where the C5 is, but where is the d**n input??
Is it the nr. 4 and 5???

And what about the output???? Is it the nr. 1, 2, 3 or 6???

This schematic is well drawn, but without some important information...

Tks in advance,
Christiano.

[TV Signal Amplifier]

As we can read in the image above, there is only on Trasistor (TR), but, at the schematic page smrtkit lists 3 transistors (BFR90, BFR91, BFW92).

I'm a newbie in electronics, and although I notice they are diferent, I can't understand what is this diference...

Datasheets:
BFR90
BFR91
BFw92