system operation

[Munky]

how those this system operate? i have difficulries to understand how it works.  :-[

please reply as soon as possible.....Thank you

[ante]

Hi Munky,

Have you got the values for the parts too, it might help. It looks like a “vox” or similar but I’m not sure!

[Munky]

sorry, i don't have the values for the components.....by the way what do you mean its like a "vox"?

[logan_dslasher]

hi Munky!

In telecommunication, a vox (short for 'voice operated switch') is a switch that operates when sound over a certain threshold is detected. It is usually used to turn on a transmitter or recorder when someone speaks. It is used instead of a push-to-talk button on transmitters or to save storage space on recording devices. The circuitry usually includes a delay that leaves the circuit activated when the sound stops. This keeps the circuit from turning off during short pauses in speech.
en.wikipedia.org/wiki/Vox

am i right, Ante?

[SM2GXN]

Hi logan_dslasher!

You are perfectly right, couldn't be said better  ;D

[logan_dslasher]

SM2GXN,

credit goes to wikipedia!  ehehe  ;D

[audioguru]

I think the circuit is a "clap switch". It switches on the relay when you clap your hands a few times that are determined by the flip-flops.

[SM2GXN]

Audioguru you are probably right, there is no trip or holdtime to adjust but wikipedia was right about the vox  ;D

[ante]

That’s probably true but still the values for the parts will help to find out exactly what this circuit does! ;)

[Munky]

Hi Ante!.... ihave the value for the components....

Resistors
R1------------ 8.2 K (grey-red-red)
R2, R5, R7-- 10 K (brown-black-orange)
R3, R8------- 6.8 K (blue-grey-red)
R4------------ 180 K (brown-grey-yellow)
R6------------ 100  (brown-black-brown)
R10, R11---- 100 K (brown-black-yellow)
R12, R9------ 1 K (brown-black-red)




Diode
D1------------    #1N4001 (Rectifier)




Capacitors
C1------------- 0.022 µF (#223n)
C3,C4--------- 0.01 µF (#103n)


Electrolytic capacitors
C2-------------- 1 µF (10V min)
C5-------------- 10 µF (10V min)
C6-------------- 330 µF (10V min)



Transistor
Q1--------------    General purpose NPN type



Miscellaneous
LED1----------- Light-emitting diode, 3 or 5mm
MIC------------- Condenser microphone
IC1-------------- 8-pin, dual op-amp IC (#358 or 1458)
IC2-------------- 14-pin dual D-flip flop, CMOS IC (#4013)

[ante]

OK, here it is!

[Munky]

i know the value of this each components, but the trouble is i don't know how this circuit operates or how this system work?

i think this circuit is "sound actuated device" like you said...i can't sims to understand how it works actually, but i know it is a device which work by sound actuated.