tacho transister
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tacho transister
been looking at the diagram for it so i can built the unit up but looking through my bits and bobs i havent got an 2n2222
is there any others i can use ???
i have a
mps2907
pn2222a
but looking trough my transister book the pn2222a is a replacment for the 2n2222a so it looks like this one will do the job
am i right ???
cheers
is there any others i can use ???
i have a
mps2907
pn2222a
but looking trough my transister book the pn2222a is a replacment for the 2n2222a so it looks like this one will do the job
am i right ???
cheers
2.0 8v turbo 10.7 standing 1/4@136mph on m/s fastest mk2 astra 8vt in europe !!!
2.0 turbo tigra 10.1 standing 1/4 @ 145 mph with problems havent turned the boost up yet
2.0 turbo tigra 10.1 standing 1/4 @ 145 mph with problems havent turned the boost up yet
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Pretty much any old small signal npn transistor will do the job. So yes those should work.
James
James
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jsmcortina wrote:Pretty much any old small signal npn transistor will do the job. So yes those should work.
James
cheers james
thats one problem solved !!
2.0 8v turbo 10.7 standing 1/4@136mph on m/s fastest mk2 astra 8vt in europe !!!
2.0 turbo tigra 10.1 standing 1/4 @ 145 mph with problems havent turned the boost up yet
2.0 turbo tigra 10.1 standing 1/4 @ 145 mph with problems havent turned the boost up yet
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tacho transister
Well personally I cheated when wiring in my tach ckt.
Since I'm running MSnS-E and wheel triggered wasted spark,
I used the original ckt (for the single ingition coil) to
drive my tach. I soldered a resistor to the back of the
board, fro mthe V+ trace to the collector of the xstr and
then just jumpered it's base t othe proper processor pin.
If I had thought about it before hand, I would have used
that heat sink mounted IBGT xstr as the PWM drive for the
IAC vavle!
ptegler
On Thu, 22 Jun 2006 07:33:54 -0700
"screamer69" <screamer69@ntlworld.com> wrote:
>
> jsmcortina wrote:
> Pretty much any old small signal npn transistor will do
>the job. So yes those should work.
>
> James
> (end of quote)
>
>
>
> cheers james
>
> thats one problem solved !!v3 board running extra 29k
>megatune 225 2.0 8v vauxhall turbo
> _________________________________________________________
> This post is at:
> http://www.msefi.com/viewtopic.php?p=127023#127023
Paul Tegler
ptegler@cablespeed.com
Posted by email.
Since I'm running MSnS-E and wheel triggered wasted spark,
I used the original ckt (for the single ingition coil) to
drive my tach. I soldered a resistor to the back of the
board, fro mthe V+ trace to the collector of the xstr and
then just jumpered it's base t othe proper processor pin.
If I had thought about it before hand, I would have used
that heat sink mounted IBGT xstr as the PWM drive for the
IAC vavle!
ptegler
On Thu, 22 Jun 2006 07:33:54 -0700
"screamer69" <screamer69@ntlworld.com> wrote:
>
> jsmcortina wrote:
> Pretty much any old small signal npn transistor will do
>the job. So yes those should work.
>
> James
> (end of quote)
>
>
>
> cheers james
>
> thats one problem solved !!v3 board running extra 29k
>megatune 225 2.0 8v vauxhall turbo
> _________________________________________________________
> This post is at:
> http://www.msefi.com/viewtopic.php?p=127023#127023
Paul Tegler
ptegler@cablespeed.com
Posted by email.
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just to check
it says 1k on the pic is this right resistor should be brown ,black red ???
im crap when it comes to getting these right ( should have stayed in school as a kid might have lernt something lol )
it says 1k on the pic is this right resistor should be brown ,black red ???
im crap when it comes to getting these right ( should have stayed in school as a kid might have lernt something lol )
2.0 8v turbo 10.7 standing 1/4@136mph on m/s fastest mk2 astra 8vt in europe !!!
2.0 turbo tigra 10.1 standing 1/4 @ 145 mph with problems havent turned the boost up yet
2.0 turbo tigra 10.1 standing 1/4 @ 145 mph with problems havent turned the boost up yet
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Yes that is right. Check out the MS assembly guide as Lance has some good info on resistor colour codes.screamer69 wrote:just to check
it says 1k on the pic is this right resistor should be brown ,black red ???
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
-
- Experienced MS/Extra'er
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right the boards done im useing js0 for the output but as im not using stepper iac can i put js0 to iac2a to save on putting a plug on it as the m/s unit it taken out alot or will something go bang on me and the wireings already there for the iac unit but not used )
js10 is going to iac1b for the knockunit
many thanx
js10 is going to iac1b for the knockunit
many thanx
2.0 8v turbo 10.7 standing 1/4@136mph on m/s fastest mk2 astra 8vt in europe !!!
2.0 turbo tigra 10.1 standing 1/4 @ 145 mph with problems havent turned the boost up yet
2.0 turbo tigra 10.1 standing 1/4 @ 145 mph with problems havent turned the boost up yet
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Look at the traces from the DB37 to those IAC holes and you'll see that they don't go any further. They are safe to use.
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
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jsmcortina wrote:Look at the traces from the DB37 to those IAC holes and you'll see that they don't go any further. They are safe to use.
James
cheers i wasnt sure so i thought i would ask better toask than blow something up
i o u a pint if i ever meet you !!
thanx again james
2.0 8v turbo 10.7 standing 1/4@136mph on m/s fastest mk2 astra 8vt in europe !!!
2.0 turbo tigra 10.1 standing 1/4 @ 145 mph with problems havent turned the boost up yet
2.0 turbo tigra 10.1 standing 1/4 @ 145 mph with problems havent turned the boost up yet
-
- Experienced MS/Extra'er
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