Hello guys I wanna to know what is that symbol! Can help anyone? What is that and why it is used? Thanks

 

Without some context, it could be many things. My guess is a SPDT switch.

 

Hello guys I wanna to know what is that symbol! Can help anyone? What is that and why it is used? Thanks

Im guessing it is a switch - Transmit / Receive (T / R)

 

It doesn't seem to appear on any standard symbol sheet, may be a one-off?
As requested, any context?

Max.

 

This symbols in this photo maybe will help! And what is that neg?

 

This symbols in this photo maybe will help!

4PDT switch. It's drawn like it has center off, but that wouldn't make sense.

 

This symbols in this photo maybe will help! And what is that neg?

The T/R is transmit and receive.

The switches are all activated by the same push button (typically the "key" on the microphone). So it is double pole (T and R) and quadruple pole (see four different segments switched).

The NEG means negative of the electret microphone. The negative lead is connected to the metal case and you can flip it over to easily see a little trace of copper connecting that leg to the case.

 

Hello,

It is a 4 fold switch.
This page of our refrence will show it in the lower right corner:
http://www.allaboutcircuits.com/textbook/reference/chpt-9/switches-hand-actuated/

Bertus

 

Might be Tip(T) and Ring(R) as in an audio jack....

 

Thanks to all guys for your tips I hope so I will find a way how to thank you

 

The circuit looks like an intercom to me. That says that it is a switch selecting either talk (T) or listen (R). I also think it has a center off position neither transmitting or receiving when not activated.

 

what is that symbol!

tap opener, in a bar.

 

I think that all symbols & abbreviations that are not in common usage should be defined the first time they are used in a presentation. AC, DC OK, PWM, depends on audience, PPM, PAM, define.

 

That circuit is from walkie talkie (transmitter circuit I guess) 27MHz

 

That circuit is from walkie talkie (transmitter circuit I guess) 27MHz

Transmits and receive circuit.

 

Wow and transmitter and receiver? Wow how it can be possible?

 

So basically a S.P.D.T. with centre off?
Max.

 

1 - barrel
2 - ring
3 - tip

Without some context, it could be many things. My guess is a SPDT switch.

Old phone plug, Ring and Tip. the third is Barrel (ground).

 

View attachment 117468

1 - barrel
2 - ring
3 - tip



Old phone plug, Ring and Tip. the third is Barrel (ground).

Uuuum I mean the circuit symbols that I marked! This circuit is from walkie talkie 27MHz. This is a jack cable and I think it have not any sense to this theme! But I will keep your tip in my mind cause I'm student (but I know the basics on electronic subject)

 

Oooooh I confused from all this tips XD! I can not recognize the symbol, although I know almost all the symbols from outside and shuffle. What symbol is that? It is SPDT, it is 4pdt, it is some kind of this switches? I don't know! I confused XD! Some accurate answers? Maybe?

P.S. sorry for so much questions, I put you in a very difficult position. Honestly I would not like that, I just wanted to know what the hell is that symbol! That all! Please forgive me!

Your Faithfully
PaulEngineer