General Electronics

Function Generator Sweep option

Some Function Generator has a Sweep option. What exactly does the Sweep do?? What is it good for? Tnx. D.

5 comments posted 21yrs

posted by davidqanta

5 comments posted 21yrs posted by davidqanta

400 Hz Servomotor

Hi to all NG! I need of your help; I have a lot of 400Hz Muirhead Servomotor-Tachometer generator mod. 15M81A, for 400H...

8 comments posted 21yrs

posted by "freeflyer(chiocciola)quipo(pu

8 comments posted 21yrs posted by "freeflyer(chiocciola)quipo(pu

Dongle casing

Hi, I'm looking for a very small case which fits a DB9 serial socket + dongle circuitry. Thanks...

2 comments posted 21yrs

posted by richard.hutchinson

2 comments posted 21yrs posted by richard.hutchinson

Universal logic modules vs NAND-like modules

Hi everyone, Is there a proper name to distinguish NAND-like universal modules from ordinary ones, that is, the ones fo...

0 comments posted 21yrs

posted by cferreira

0 comments posted 21yrs posted by cferreira

12 volts 8-60hz sine wave generator

Hi, How easy or hard it is to construct a kit that can produce 12 volts with variable sine wave frequency from 8Hz to 6...

1 comments posted 21yrs

posted by davidqanta

1 comments posted 21yrs posted by davidqanta

a simple inverter

A 3600rpm dc motor turning a disk swaps polarity of a 12 volt car battery at 60Hz using 4 brushes. Running this through...

2 comments posted 21yrs

posted by jon8338

2 comments posted 21yrs posted by jon8338

Current b4 and after load

Suppose you have 220 volts AC and a load such as an electric fan. Is the current before and after the load exactly 100%...

14 comments posted 21yrs

posted by davidqanta

14 comments posted 21yrs posted by davidqanta

Why is AC 60 Hz?

Hi, How is AC 60 Hz and not 30 Hz. What is so significant about 60 or 50Hz? Can't bulb or electric motors run at 20 Hz o...

17 comments posted 21yrs

posted by davidqanta

17 comments posted 21yrs posted by davidqanta

8 Hz Sine Wave

Hi, How can I create a 8Hz Sine Wave 220 volts signal. If I convert the AC 220 volts to DC. Will I still get 220 volts?...

4 comments posted 21yrs

posted by davidqanta

4 comments posted 21yrs posted by davidqanta

Ultrasonic phased array

Hello, i'm searching for an US phased array for an ultrasonic air sonar. Unfortunately I couldn't find any vendor of su...

1 comments posted 21yrs

posted by 98malaab

1 comments posted 21yrs posted by 98malaab

Homebuilt laser cutter pictures

Hi all, We have built a computer controlled C02 laser for cutting and engraving. Thought some of you may be interested...

3 comments posted 21yrs

posted by tony

3 comments posted 21yrs posted by tony

case grounded motor wiring

I am wiring a car windshield wiper motor directly to a car battery. The wiring diagram says +12v Terminal1 -12v case gr...

4 comments posted 21yrs

posted by palito

4 comments posted 21yrs posted by palito

AC or DC????????????

I recently acquired a beautiful antique doorbell from Russia, and there are absolutely no markings on the electromagnet...

3 comments posted 21yrs

posted by ksleep

3 comments posted 21yrs posted by ksleep

Focused homemade nitrogen laser?

I've seen the designs for low-cost home-built nitrogen lasers. But these were for unfocused beams. Is there a low-cost...

26 comments posted 21yrs

posted by rgregoryclark

26 comments posted 21yrs posted by rgregoryclark

100hz oscillator

HI all, I've been using the LTC1799 for >1khz squarewaves, very small, very stable and only 1 resistor needed! though t...

0 comments posted 21yrs

posted by exxos

0 comments posted 21yrs posted by exxos