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You realize that a schematic has nothing to do with the placement of the parts, right?Help me to create a new circuit were the power switch is on the right side and the push switch ( with 12 pins ) is on the left side
Not sure what your problem is?
In transmit, you have to look at the circuit with the 'arrows' connected to the points marked 'T' and for receive you look at the circuit with the 'arrows' connected to the points marked 'R'.
It may be a useful exercise for you to print out two copies of the schematic and physcially erase the non-connected parts of the circuits when the switch is in either the 'T' or 'R' position.
But simply, in R (receive) Q1 operates as an oscillator/mixer in a 'direct conversion' way with Q2,3 and 4 as the main audio amplification - outputting to the loudspeaker.
In transmit (T), Q1 oscillates using the 27MHz crystal, the RF is fed to Q2/3 and the speaker is used as a microphone via Q2 to modulate the RF.
Are you talking about the position of the components in the scematic, or the position in the circuit when built?
Bob
The circuit, as drawn, is pefectly understandable given that it is drawn in the 'conventional' sense - positive rail at the top, ground rail at the bottom and elemental parts of the design from left-to-right.
Individually the various sections are also drawn conventionally - the oscillator, the amplifier.
It is perfectly 'understandable' to anyone with the proper training and understanding of schematics.
I (we) don't understand what your problem really is? As far as the schematic is concerned, it couldn't be simpler....
The component positions on the pcb tend to follow their placement in the schematic except where circuits might cause self-inductance/interference between sections, in which case they are eihter 'screened' of they are placed at a distance that minimises the effects.
For circuits that are already constructed, the manufacturer normally provides the parts placement diagram and component designation overlay. If you are intending to draw your own (i.e reverse engineer) then you have to do that yourself.
Are you talking about the position of the components in the scematic, or the position in the circuit when built?
Bob
Are you asking us to design a printed circuit board for you?I wanted to know the components position in real world,
Are you asking us to design a printed circuit board for you?
The 12 pins are all used.
I'm confuse specially for the 12 pins push switch. and wether all the pins (of the 12 pins) will be used.
The schematic doesn't show the 'common' terminal for the four change-over contacts so there really are 12 pins.what 12 pin switch ??
the TX/RX uses a 8 pin switch
The schematic doesn't show the 'common' terminal for the four change-over contacts so there really are 12 pins.