aplication of amplifier output relay delay

[silvarblade]

any one knows any application of amplifier output relay delay so i can demonstrate it .

 

[Optikon]

any one knows any application of amplifier output relay delay so i can demonstrate it .

This sentence doesn't make much sense. Can you try and explain again?

 

[silvarblade]

This sentence doesn't make much sense. Can you try and explain again?

you know how can i show its use. like should i use a fm radio or something to show what it does. or if any thing more interesting then please tell me.

 

[Nigel Goodwin]

I'm presuming you mean the speaker protection relay in some amplifiers?. It has two functions, one is to disconnect the speakers if the amplifier has a DC level on the output (as it would kill the speakers). Secondly, it delays connecting the speakers when you turn it on, so as to avoid any clicks or pops - it also disconnects the speakers when you turn the amp off as well, for the same reason.

 

[silvarblade]

I'm presuming you mean the speaker protection relay in some amplifiers?. It has two functions, one is to disconnect the speakers if the amplifier has a DC level on the output (as it would kill the speakers). Secondly, it delays connecting the speakers when you turn it on, so as to avoid any clicks or pops - it also disconnects the speakers when you turn the amp off as well, for the same reason.

hey are there any faults in this schematic. also the two resistors are not available in 0.25w so any substitutions??

 

[Optikon]

hey are there any faults in this schematic. also the two resistors are not available in 0.25w so any substitutions??

The resistors are standard values and are available in 0.25W! I dont know where you shop at but if they dont have these look elsewhere.

Or, you could always place 2 of double the value in parallel each rated at 0.125W

i.e. 2.2K (.25W) = 4.3K // 4.3K close enough for this application.

or two 1.1K in series each rate for 0.125W, you get the idea.

 

[ericgibbs]

hi silvarblade,

If you apply 24Vac to the circuit power terminals, the relay will take 5 seconds to operate and close the relay contacts.

If you have speakers connected as shown in the diagram they will be connected when the relays contacts close.

If you remove the 24Vac, the relay contacts will open immediately.

Why do you think the circuit will not work??

Check with Tomi Engdahl.

EricG

 

[silvarblade]

because the sun p alarm i made isn't working and it is from the same book although i did all the connections properly. can u verify that figure also please?

 

[silvarblade]

how am i supposed to connect the relay to the amplifier. i am using a radio circuit to show the output . connect the coil wires as shown what about the other three??

 

[silvarblade]

The resistors are standard values and are available in 0.25W! I dont know where you shop at but if they dont have these look elsewhere.

Or, you could always place 2 of double the value in parallel each rated at 0.125W

i.e. 2.2K (.25W) = 4.3K // 4.3K close enough for this application.

or two 1.1K in series each rate for 0.125W, you get the idea.

hey is that a dpdt relay or a spdt one?