Jigsaw Puzzle solved !!

[Phil Allison]

** Hi again,

( apologies for the pun )

The sole reason for the odd behaviour of my trusty SCR speed controller with
the new jigsaw was due to the suppression cap fitted across the AC leads of
the saw - 220nF in this case but 22nF or 47nF was just as effective at
preventing operation.

Removing the cap produced normal speed control.

Investigation showed that with the cap in place, large bursts of ringing
voltage appears across the motor each time the SCR switches off - this
interferes with the operation of the diac firing circuit and hence the drill
will not run.

There is a very simple fix that allows the cap to remain: using a double
adaptor, connect a 100/150 watt lamp in parallel with the saw or other tool
fitted with such a suppression cap.

Damps the ringing and normal operation resumes.

See ABSE for schem of the controller - an EA design sold by DSE as a kit
long ago.



........ Phil

 

[Bob Parker]

Phil Allison wrote:

** Hi again,

( apologies for the pun )

The sole reason for the odd behaviour of my trusty SCR speed controller with
the new jigsaw was due to the suppression cap fitted across the AC leads of
the saw - 220nF in this case but 22nF or 47nF was just as effective at
preventing operation.

Removing the cap produced normal speed control.

Investigation showed that with the cap in place, large bursts of ringing
voltage appears across the motor each time the SCR switches off - this
interferes with the operation of the diac firing circuit and hence the drill
will not run.

There is a very simple fix that allows the cap to remain: using a double
adaptor, connect a 100/150 watt lamp in parallel with the saw or other tool
fitted with such a suppression cap.

Damps the ringing and normal operation resumes.

See ABSE for schem of the controller - an EA design sold by DSE as a kit
long ago.



....... Phil

Very simple fix. Better buy your lamps now, while they're still
available!


Bob

 

[TonyS]

Phil Allison wrote:

** Hi again,

( apologies for the pun )

The sole reason for the odd behaviour of my trusty SCR speed controller with
the new jigsaw was due to the suppression cap fitted across the AC leads of
the saw - 220nF in this case but 22nF or 47nF was just as effective at
preventing operation.

Removing the cap produced normal speed control.

Investigation showed that with the cap in place, large bursts of ringing
voltage appears across the motor each time the SCR switches off - this
interferes with the operation of the diac firing circuit and hence the drill
will not run.

There is a very simple fix that allows the cap to remain: using a double
adaptor, connect a 100/150 watt lamp in parallel with the saw or other tool
fitted with such a suppression cap.

Damps the ringing and normal operation resumes.

See ABSE for schem of the controller - an EA design sold by DSE as a kit
long ago.



....... Phil

Thanks for the follow-up Phil.

Tony

 

[who where]

wot, managed to get the toaster back together with no bits left over?
Congratulations!

 

[Phil Allison]

"Bob Parker"
Phil Allison

There is a very simple fix that allows the cap to remain: using a double
adaptor, connect a 100/150 watt lamp in parallel with the saw or other
tool fitted with such a suppression cap.

Damps the ringing and normal operation resumes.


Very simple fix. Better buy your lamps now, while they're still
available!

** I see you are not up with the latest offerings from the planet's best
friend - ie the lighting industry.

Available form K-Marts stores right now, 42 watt halogen bulbs that (
allegedly) put out the same light as a 60 watt normal bulb. Only 2.99 each.
Last up to 2000 hours.

http://www.comparestoreprices.co.uk/light-bulbs/osram-halogen-classic-a-60w-bayonet-cap.asp

Able to stay on sale after standard GLS bulbs have been banned.

This is scheduled to start in October THIS YEAR - with a total ban on
importation.

We live in interesting times........

Chinese pun, fully intended.




....... Phil

 

[ian field]

"Bob Parker" <bobp.deletethis@bluebottle.com> wrote in message
news:47ba5576$0$7238$afc38c87@news.optusnet.com.au...

Phil Allison wrote:
** Hi again,

( apologies for the pun )

The sole reason for the odd behaviour of my trusty SCR speed controller
with the new jigsaw was due to the suppression cap fitted across the AC
leads of the saw - 220nF in this case but 22nF or 47nF was just as
effective at preventing operation.

Removing the cap produced normal speed control.

Investigation showed that with the cap in place, large bursts of ringing
voltage appears across the motor each time the SCR switches off - this
interferes with the operation of the diac firing circuit and hence the
drill will not run.

There is a very simple fix that allows the cap to remain: using a double
adaptor, connect a 100/150 watt lamp in parallel with the saw or other
tool fitted with such a suppression cap.

Damps the ringing and normal operation resumes.

See ABSE for schem of the controller - an EA design sold by DSE as a
kit long ago.



....... Phil

Very simple fix. Better buy your lamps now, while they're still
available!


Bob

Maybe when the supply of lamps dries up, he could use a power resistor for
damping?

 

[Suzy]

Dear Phil

I have now read so many recent reasonable and helpful posts from you (quoted
by others) that I can only assume you are a reformed person! I'll now
un-killfile you!


"TonyS" <scarborofun@gmail.nspm.com> wrote in message
news:47ba5a74$0$30951$5a62ac22@per-qv1-newsreader-01.iinet.net.au...

Phil Allison wrote:
** Hi again,

( apologies for the pun )

The sole reason for the odd behaviour of my trusty SCR speed controller
with the new jigsaw was due to the suppression cap fitted across the AC
leads of the saw - 220nF in this case but 22nF or 47nF was just as
effective at preventing operation.

Removing the cap produced normal speed control.

Investigation showed that with the cap in place, large bursts of ringing
voltage appears across the motor each time the SCR switches off - this
interferes with the operation of the diac firing circuit and hence the
drill will not run.

There is a very simple fix that allows the cap to remain: using a double
adaptor, connect a 100/150 watt lamp in parallel with the saw or other
tool fitted with such a suppression cap.

Damps the ringing and normal operation resumes.

See ABSE for schem of the controller - an EA design sold by DSE as a
kit long ago.



....... Phil




Thanks for the follow-up Phil.

Tony

 

[ian field]

"Suzy" <not@valid> wrote in message news:47bb1e73@dnews.tpgi.com.au...

Dear Phil

I have now read so many recent reasonable and helpful posts from you
(quoted by others) that I can only assume you are a reformed person! I'll
now un-killfile you!

Go for it - he's often very entertaining.

 

[fritz]

ian field <dai.ode@ntlworld.com> wrote in message news:8gHuj.2568$Ef1.1888@newsfe6-win.ntli.net...

"Suzy" <not@valid> wrote in message news:47bb1e73@dnews.tpgi.com.au...
Dear Phil

I have now read so many recent reasonable and helpful posts from you
(quoted by others) that I can only assume you are a reformed person! I'll
now un-killfile you!

Go for it - he's often very entertaining.

He still verges on the psychotic though. The jury is out....
Why has Phil resorted to baseless abusive language so often in the past ?
A simple google group search will reveal his abusive nature.
Maybe he has reformed, I certainly hope so, he seems to have improved recently.
If you want to abuse people, go to aus.politics NOT aus.electronics !!!

 

[The Real Andy]

On Wed, 20 Feb 2008 05:22:41 +1100, "Suzy" <not@valid> wrote:

Dear Phil

I have now read so many recent reasonable and helpful posts from you (quoted
by others) that I can only assume you are a reformed person! I'll now
un-killfile you!

I rarley read this NG anymore, but you are so pathetic I am going to
killfile you.

 

[Jeßus]

Suzy wrote:

Dear Phil

I have now read so many recent reasonable and helpful posts from you (quoted
by others) that I can only assume you are a reformed person! I'll now
un-killfile you!

It's poor form to tell people you've filtered (or unfiltered) them -
just do it without any ceremony.

 

[L.A.T.]

"Jeßus" <power_sliding@yahoo.co.uk> wrote in message
news:fpq7ro$hid$1@stable.tornevall.net...

Suzy wrote:
Dear Phil

I have now read so many recent reasonable and helpful posts from you
(quoted by others) that I can only assume you are a reformed person!
I'll now un-killfile you!

It's poor form to tell people you've filtered (or unfiltered) them - just
do it without any ceremony.
Sez who?

 

[Jeßus]

L.A.T. wrote:

"Jeßus" <power_sliding@yahoo.co.uk> wrote in message
news:fpq7ro$hid$1@stable.tornevall.net...
Suzy wrote:
Dear Phil

I have now read so many recent reasonable and helpful posts from you
(quoted by others) that I can only assume you are a reformed person!
I'll now un-killfile you!
It's poor form to tell people you've filtered (or unfiltered) them - just
do it without any ceremony.
Sez who?

<PLONK>

 

[Suzy]

"Jeßus" <power_sliding@yahoo.co.uk> wrote in message
news:fpq7ro$hid$1@stable.tornevall.net...

Suzy wrote:
Dear Phil

I have now read so many recent reasonable and helpful posts from you
(quoted by others) that I can only assume you are a reformed person!
I'll now un-killfile you!

It's poor form to tell people you've filtered (or unfiltered) them - just
do it without any ceremony.

Hangs head and goes quietly to corner... Your dignified postings somehow
belie your occasional descent to that useless uk amateur radio group...

 

[Suzy]

"Jeßus" <power_sliding@yahoo.co.uk> wrote in message
news:fpqc97$o74$1@stable.tornevall.net...

L.A.T. wrote:
"Jeßus" <power_sliding@yahoo.co.uk> wrote in message
news:fpq7ro$hid$1@stable.tornevall.net...
Suzy wrote:
Dear Phil

I have now read so many recent reasonable and helpful posts from you
(quoted by others) that I can only assume you are a reformed person!
I'll now un-killfile you!
It's poor form to tell people you've filtered (or unfiltered) them -
just do it without any ceremony.
Sez who?

PLONK

Isn't that a bit hard?

 

[Jeßus]

Suzy wrote:

"Jeßus" <power_sliding@yahoo.co.uk> wrote in message
news:fpqc97$o74$1@stable.tornevall.net...
L.A.T. wrote:
"Jeßus" <power_sliding@yahoo.co.uk> wrote in message
news:fpq7ro$hid$1@stable.tornevall.net...
Suzy wrote:
Dear Phil

I have now read so many recent reasonable and helpful posts from you
(quoted by others) that I can only assume you are a reformed person!
I'll now un-killfile you!
It's poor form to tell people you've filtered (or unfiltered) them -
just do it without any ceremony.
Sez who?
PLONK

Isn't that a bit hard?

Not really, it is only fortified wine.
The Grappa from the Italian bloke down the road on the other hand...

 

[Jeßus]

Suzy wrote:

"Jeßus" <power_sliding@yahoo.co.uk> wrote in message
news:fpq7ro$hid$1@stable.tornevall.net...
Suzy wrote:
Dear Phil

I have now read so many recent reasonable and helpful posts from you
(quoted by others) that I can only assume you are a reformed person!
I'll now un-killfile you!
It's poor form to tell people you've filtered (or unfiltered) them - just
do it without any ceremony.

Hangs head and goes quietly to corner... Your dignified postings somehow
belie your occasional descent to that useless uk amateur radio group...

Don't worry Suzy, I'm rarely very serious about most things you'll find
on Usenet... As for the UK Amateur group, the only time you'll see me in
there is due to someone crossposting

 

[Phil Allison]

"Jeßus"
Suzy wrote:

PLONK

Isn't that a bit hard?

Not really, it is only fortified wine.
The Grappa from the Italian bloke down the road on the other hand...

** LOL -

put that evil stuff in you petrol tank and the car WILL RUN on it !!



......... Phil

 

[Jeßus]

Phil Allison wrote:

"Jeßus"
Suzy wrote:

PLONK
Isn't that a bit hard?
Not really, it is only fortified wine.
The Grappa from the Italian bloke down the road on the other hand...



** LOL -

put that evil stuff in you petrol tank and the car WILL RUN on it !!

Well...
I haven't been able to buy Shell Optimax for a week or more - and today
there's no bloody BP Ultimate - so perhaps I should! Anything has got to
be better than that 95RON garbage that passes for petrol here in
Australia...

 

[Jeßus]

fritz wrote:

ian field <dai.ode@ntlworld.com> wrote in message news:8gHuj.2568$Ef1.1888@newsfe6-win.ntli.net...
"Suzy" <not@valid> wrote in message news:47bb1e73@dnews.tpgi.com.au...
Dear Phil

I have now read so many recent reasonable and helpful posts from you
(quoted by others) that I can only assume you are a reformed person! I'll
now un-killfile you!
Go for it - he's often very entertaining.

He still verges on the psychotic though. The jury is out....
Why has Phil resorted to baseless abusive language so often in the past ?
A simple google group search will reveal his abusive nature.
Maybe he has reformed, I certainly hope so, he seems to have improved recently.
If you want to abuse people, go to aus.politics NOT aus.electronics !!!

You spoke too soon:
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From: "Phil Allison" <philallison@tpg.com.au>
Newsgroups: aus.legal,aus.cars
Subject: Re: Is it legal to dump furnature in street?
Date: Sun, 24 Feb 2008 14:20:26 +1100
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"Benson"
<snip>

Why can't you just get it picked up? If your costs in getting it picked
up are worth more than the furniture, then just let it get dumped on the
road.

Sounds like a very uncaring friend

** Flatmate does not = friend - you PITA fuckwit.

who would threaten to do this to someone who is ill in hospital.

** Ever had to share accommodation with someone who is in and out of a
PSYCHIATRIC hospital ?

Got any idea what a nightmare that is ?

BTW rhetorical question,

self obsessed autistic cuntheads like " Benson" have

NO FUCKING IDEA !!

...... Phil

-----------------------------------------------------

Good onya Phil