Today's Message Index:
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1. 04:28 PM - Re: Re: Booster coil (Yak Pilot)
2. 04:39 PM - Re: Re: Booster coil (Yak Pilot)
Message 1
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| Subject: | Re: Booster coil |
The booster coil has two screw in connectors.- One for the main output vo
ltage which
takes a rather special piece that sits down in the socket and makes contact
with the
high voltage winding on the coil.- This piece looks very close to the "ci
garette" that is
installed in the mag itself for almost the same purpose.- This piece is h
eld on with a
screw on threaded cap.-
-
The input voltage to the boost coil is fed in on the END of the unit.- It
too has a threaded
on piece that is used to ground the shield, with a fitting that is almost e
xactly the same
as that which screws on to the OUTSIDE of the mag that Dennis was talking a
bout
earlier.- Just to be clear ... on that former subject..... one does not t
ake the mag apart
to get to ANYTHING inside the mag to connect the P Lead wire.-- The mag
stays
closed with the top screwed down.- You never go inside of it.- Instead
you have a
special piece that is soldered onto the end of the shielded P lead wire.-
This special
piece then slides into a HOLE on the back of the mag.- Again, you do not
take
anything apart to get at this.- This special phenolic piece slides in and
makes contact
with an internal piece of spring metal.- Then the CAP SCREW is tightened
down to
hold this piece in place.- The shield of the P lead is soldered to the CA
P SCREW
PIECE and is grounded when you tighten the connector down.- Doing this ri
ght is
CRITICAL to avoid severe radio noise.- I mean SEVERE.-
-
The boost coil is the same way.- The high voltage lead must be shielded a
nd the shield
grounded at the special connector.- Otherwise the boost coil starting wir
e will act as a
very nice antenna even when not starting, and your radios will be next to u
seless.-
-
To attach the actual power leads (as Dennis said: 24 vdc) to the coil, you
need to
split the case of the boost coil in half.- (remove the 4 screws on the si
de after un-
bending the locking tabs).-
-
Inside you will see a terminal-right next to a black knurled knob that is
used to
adjust the point gap on the buzzer that makes the thing work to begin with.
- That
is your GROUND connection.- As you are looking at the thing face on, with
that
terminal facing you, you will see the black adjustment knob on the left, th
en going
clockwise you will see the double-nutted terminal that is the GROUND.- Go
ing
further clockwise you will see a terminal that is stand alone.- It is hoo
ked to
nothing else electrically.- All by itself.- That is the main 28 vdc pow
er input
connection.- Going further around (about 5 o'clock now) you will see a nu
t
that connects to the buzzer leaf spring) .- Leave that alone.-
-
The unit does not get it's ground from the case.-
-
Best Regards,
-
Mark Bitterlich
-
p.s.- Be very careful if you don't have the right connection fittings and
you decide
to wire it up as best you can.- Especially the P lead on the mag.- I ha
ve seen
(personally) radio receiver front ends blown from the noise the mag can cre
ate
if the P lead shield is not right.-- Good luck.
-
--- On Fri, 1/1/10, A. Dennis Savarese <dsavarese0812@bellsouth.net> wrote:
From: A. Dennis Savarese <dsavarese0812@bellsouth.net>
Subject: Re: M14PEngines-List: Re: Booster coil
Booster coil - yes, I believe you are correct.- I just don't remember wit
hout looking at one.
Dennis
----- Original Message -----
From: HBaker
Sent: Friday, January 01, 2010 9:40 PM
Subject: M14PEngines-List: Re: Booster coil
ca>
OK, Thanks !
That makes sense now.- I'll take a closer look at this in the morning.
How about the booster coil ?- Power to the 2 nut stud and the case is alr
eady grounded ?
--------
Currently building a Murphy Moose - any help would be appreciated.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=279708#279708
http://www.mnbsp;----- via the Web href="http://forums.matronic
s.com">http://forums.matronics.com
_p;-------- generous bsp;-----------
-------- href="http://www.matronics.com/contribution">htt
p://www.matronics.com/c================
Message 2
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| Subject: | Re: Booster coil |
One last comment.- Since you are building a Moose, it is very likely that
you have
the engine in hand, (thus the questions) along with the Boost Coil, but you
do not
have the special Russian wiring pieces that connect to them.- Those piece
s are
typically part of the original Russian or Chinese wiring harness.- I sugg
est that you
try to get these very special piece/parts so that you can duplicate the ori
ginal set-up.
-
Mark
-
--- On Sat, 1/2/10, Yak Pilot <yakplt@yahoo.com> wrote:
From: Yak Pilot <yakplt@yahoo.com>
Subject: Re: M14PEngines-List: Re: Booster coil
The booster coil has two screw in connectors.- One for the main output vo
ltage which
takes a rather special piece that sits down in the socket and makes contact
with the
high voltage winding on the coil.- This piece looks very close to the "ci
garette" that is
installed in the mag itself for almost the same purpose.- This piece is h
eld on with a
screw on threaded cap.-
-
The input voltage to the boost coil is fed in on the END of the unit.- It
too has a threaded
on piece that is used to ground the shield, with a fitting that is almost e
xactly the same
as that which screws on to the OUTSIDE of the mag that Dennis was talking a
bout
earlier.- Just to be clear ... on that former subject..... one does not t
ake the mag apart
to get to ANYTHING inside the mag to connect the P Lead wire.-- The mag
stays
closed with the top screwed down.- You never go inside of it.- Instead
you have a
special piece that is soldered onto the end of the shielded P lead wire.-
This special
piece then slides into a HOLE on the back of the mag.- Again, you do not
take
anything apart to get at this.- This special phenolic piece slides in and
makes contact
with an internal piece of spring metal.- Then the CAP SCREW is tightened
down to
hold this piece in place.- The shield of the P lead is soldered to the CA
P SCREW
PIECE and is grounded when you tighten the connector down.- Doing this ri
ght is
CRITICAL to avoid severe radio noise.- I mean SEVERE.-
-
The boost coil is the same way.- The high voltage lead must be shielded a
nd the shield
grounded at the special connector.- Otherwise the boost coil starting wir
e will act as a
very nice antenna even when not starting, and your radios will be next to u
seless.-
-
To attach the actual power leads (as Dennis said: 24 vdc) to the coil, you
need to
split the case of the boost coil in half.- (remove the 4 screws on the si
de after un-
bending the locking tabs).-
-
Inside you will see a terminal-right next to a black knurled knob that is
used to
adjust the point gap on the buzzer that makes the thing work to begin with.
- That
is your GROUND connection.- As you are looking at the thing face on, with
that
terminal facing you, you will see the black adjustment knob on the left, th
en going
clockwise you will see the double-nutted terminal that is the GROUND.- Go
ing
further clockwise you will see a terminal that is stand alone.- It is hoo
ked to
nothing else electrically.- All by itself.- That is the main 28 vdc pow
er input
connection.- Going further around (about 5 o'clock now) you will see a nu
t
that connects to the buzzer leaf spring) .- Leave that alone.-
-
The unit does not get it's ground from the case.-
-
Best Regards,
-
Mark Bitterlich
-
p.s.- Be very careful if you don't have the right connection fittings and
you decide
to wire it up as best you can.- Especially the P lead on the mag.- I ha
ve seen
(personally) radio receiver front ends blown from the noise the mag can cre
ate
if the P lead shield is not right.-- Good luck.
-
--- On Fri, 1/1/10, A. Dennis Savarese <dsavarese0812@bellsouth.net> wrote:
From: A. Dennis Savarese <dsavarese0812@bellsouth.net>
Subject: Re: M14PEngines-List: Re: Booster coil
Booster coil - yes, I believe you are correct.- I just don't remember wit
hout looking at one.
Dennis
----- Original Message -----
From: HBaker
Sent: Friday, January 01, 2010 9:40 PM
Subject: M14PEngines-List: Re: Booster coil
ca>
OK, Thanks !
That makes sense now.- I'll take a closer look at this in the morning.
How about the booster coil ?- Power to the 2 nut stud and the case is alr
eady grounded ?
--------
Currently building a Murphy Moose - any help would be appreciated.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=279708#279708
http://www.mnbsp;----- via the Web href="http://forums.matronic
s.com">http://forums.matronics.com
_p;-------- generous bsp;-----------
-------- href="http://www.matronics.com/contribution">htt
p://www.matronics.com/c================
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ngines-List
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