common emitter amplifier

[sameer gupta]

please correct me if i am wrong... i m not able decide where R5 is to be connected in brd file...

[nidhi sharma]

sameer u can actually avoid using one pin out of JP1(1) & JP2(2)... as both are connected to ground..

also i think u have not taken any pin heads for input power supply.. 

add a 2pin pinhead for the vcc supply... +,-

this way, u have 2 input grounds... (1 from JP1/JP2 & 1 from vcc supply..) u can avoid 1 of these....

as for the brd file, try to make it in a lesser area.. approx 1/2 of the present one...

plus try using the 45deg bends for the connections(due to the reasons stated by rohit sir in class)..

hope u find it useful..

good effort..

[sameer gupta]

but in the class when we made the circuit consist of 2 led and
resistor there also we used Vcc but sir didnt use a pin head so i also
avoided it and also to take output from the amp we have to have pin
head otherwise how would we derive output from the circuit

[nidhi sharma]

i am not saying u remove the pin head... i'm just saying that if, say..

there are some 4-5 grounds(or any other points on same potential) in the schematic.. u need not have a pinhead for each one of these.. rather, u can have just 1 pinhead for all of these, but its equally good both ways.. my way, u just save a few pinheads..

as for the class, i think he was trying to teach us the very basics of designing a circuit.. introducing the concept of pinheads at that time might have confused some 70% of ppl...

also think for urself.. u'll have to somehow get the supply onto the board... pinhead is the way out..

[nidhi sharma]

also, the r5 will be connected to + of vcc of the pinhead that is to be added...

[sameer gupta]

u mean that i should attach another pin head whose 1 pin connected to
Vcc and other pin to gnd....

On Jan 4, 10:08 pm, nidhi sharma <latitud...@gmail.com> wrote:
> also, the r5 will be connected to + of vcc of the pinhead that is to be
> added...
>
>
>
>
>
>
>
> On Wed, Jan 4, 2012 at 10:34 PM, nidhi sharma <latitud...@gmail.com> wrote:
> > i am not saying u remove the pin head... i'm just saying that if, say..
> > there are some 4-5 grounds(or any other points on same potential) in the
> > schematic.. u need not have a pinhead for each one of these.. rather, u can
> > have just 1 pinhead for all of these, but its equally good both ways.. my
> > way, u just save a few pinheads..
> > as for the class, i think he was trying to teach us the very basics of
> > designing a circuit.. introducing the concept of pinheads at that time
> > might have confused some 70% of ppl...
> > also think for urself.. u'll have to somehow get the supply onto the
> > board... pinhead is the way out..
>

[nidhi sharma]

yes...

[sameer gupta]

and if we have to derive the output from any circuit then also we
should be using pin head??
how to add opamp.??

[nidhi sharma]

exactly...u take something external onto a pcb, or to derive something out of it, we must use a pinhead..

adding an opamp..

i recommend adding an ic instead... 

opamps availbl in lib are   LM741CN ,  LM358 , etc..