Where can I source ...?

[budgie]

Have a 2W carbon 5M6 resistor that has gone high (as they do) and need to
replace it. Hah - you'd think it was rocking horse s##t. Tried the usual
suspects but they either:
.. don't have 2W at all
.. don't go above 1M in 2W
.. only have 2W in metal film and not sure about >1M

Any suggestions where I could source one?

TIA

 

[John Crighton]

On Fri, 31 Dec 2004 09:14:55 +0800, budgie <me@privacy.net> wrote:

Have a 2W carbon 5M6 resistor that has gone high (as they do) and need to
replace it. Hah - you'd think it was rocking horse s##t. Tried the usual
suspects but they either:
. don't have 2W at all
. don't go above 1M in 2W
. only have 2W in metal film and not sure about >1M

Any suggestions where I could source one?

TIA

Hello Budgie,
I looked in my junk boxes. I have several resistors marked
5.6M 5% Welwyn Panclimatic 021- 6824
mearuring 32 mm long by 9mm in diameter. You can have
them all if you like for free.

If you think that part is suitable send me an e-mail with your
address.

John G (Wot's Your Real Problem?) sent me some resistance
wire a while back, thanks John G.
So budgie, allow me to pass on his goodwill.

Regards,
John Crighton
Hornsby

 

[Mike Harding]

On Fri, 31 Dec 2004 09:14:55 +0800, budgie <me@privacy.net> wrote:

Have a 2W carbon 5M6 resistor that has gone high (as they do) and need to
replace it. Hah - you'd think it was rocking horse s##t. Tried the usual
suspects but they either:
. don't have 2W at all
. don't go above 1M in 2W
. only have 2W in metal film and not sure about >1M

Any suggestions where I could source one?

Not a clue!

How about 2 x 10M 1W in parallel? I've got one if
someone has a second?

Mike Harding

 

[Mike Harding]

On Fri, 31 Dec 2004 15:25:32 +1100, Mike Harding
<mike_harding@nixspam.fastmail.fm> wrote:

On Fri, 31 Dec 2004 09:14:55 +0800, budgie <me@privacy.net> wrote:

Have a 2W carbon 5M6 resistor that has gone high (as they do) and need to
replace it. Hah - you'd think it was rocking horse s##t. Tried the usual
suspects but they either:
. don't have 2W at all
. don't go above 1M in 2W
. only have 2W in metal film and not sure about >1M

Any suggestions where I could source one?

Not a clue!

How about 2 x 10M 1W in parallel? I've got one if
someone has a second?

Sorry, must be going colour blind - I have one
15M 1W carbon resistor.

Mike Harding

 

[Fred Ferd]

"budgie" <me@privacy.net> wrote in message
news:to99t0ts7j49chdtdn1i84sk63lr39s6im@4ax.com...

Have a 2W carbon 5M6 resistor that has gone high (as they do) and need to
replace it. Hah - you'd think it was rocking horse s##t. Tried the usual
suspects but they either:
. don't have 2W at all
. don't go above 1M in 2W
. only have 2W in metal film and not sure about >1M

Have you calculated the voltage requirement to get 2W consumed in 5M ?

Power P = VI.
current I=V/R

2= V^2/R
V = square root ( 10 M )
= 3156 volts.

Are you really using 3000 volts continuously ???

I really dont think its likely. The circuit may have had 2W just because
thats what was in the warehouse
when the circuit was designed. or because they wanted the large legs for
ease of assembly- whatever.


If its really 1000volts RMS or less, eg its duty cycle is 30 %, or
something,
then 1W will definitely do.

If 1W wont do , theres a circuit flaw that is destroying any resistor that
is put there.

 

[budgie]

On Fri, 31 Dec 2004 06:15:58 GMT, "Fred Ferd" <fred@ferd.com> wrote:

"budgie" <me@privacy.net> wrote in message
news:to99t0ts7j49chdtdn1i84sk63lr39s6im@4ax.com...
Have a 2W carbon 5M6 resistor that has gone high (as they do) and need to
replace it. Hah - you'd think it was rocking horse s##t. Tried the usual
suspects but they either:
. don't have 2W at all
. don't go above 1M in 2W
. only have 2W in metal film and not sure about >1M

Have you calculated the voltage requirement to get 2W consumed in 5M ?

Power P = VI.
current I=V/R

2= V^2/R
V = square root ( 10 M )
= 3156 volts.

Are you really using 3000 volts continuously ???

I really dont think its likely. The circuit may have had 2W just because
thats what was in the warehouse
when the circuit was designed. or because they wanted the large legs for
ease of assembly- whatever.


If its really 1000volts RMS or less, eg its duty cycle is 30 %, or
something,
then 1W will definitely do.

If 1W wont do , theres a circuit flaw that is destroying any resistor that
is put there.

It's in the focus divider and the original is 2W. I'm not in the habit of
lowering ratings when the manufacturere chose to use a particular size.

But gee thanks for the ohms law refresher ;-)

 

[budgie]

On Fri, 31 Dec 2004 03:43:23 GMT, john_c@tpg.com.au (John Crighton) wrote:

On Fri, 31 Dec 2004 09:14:55 +0800, budgie <me@privacy.net> wrote:

Have a 2W carbon 5M6 resistor that has gone high (as they do) and need to
replace it. Hah - you'd think it was rocking horse s##t. Tried the usual
suspects but they either:
. don't have 2W at all
. don't go above 1M in 2W
. only have 2W in metal film and not sure about >1M

Any suggestions where I could source one?

TIA

Hello Budgie,
I looked in my junk boxes. I have several resistors marked
5.6M 5% Welwyn Panclimatic 021- 6824
mearuring 32 mm long by 9mm in diameter. You can have
them all if you like for free.

Thanks for the offer John, but yours is a tad too large to fit.

 

[budgie]

On Fri, 31 Dec 2004 15:28:06 +1100, Mike Harding
<mike_harding@nixspam.fastmail.fm> wrote:

On Fri, 31 Dec 2004 15:25:32 +1100, Mike Harding
mike_harding@nixspam.fastmail.fm> wrote:

On Fri, 31 Dec 2004 09:14:55 +0800, budgie <me@privacy.net> wrote:

Have a 2W carbon 5M6 resistor that has gone high (as they do) and need to
replace it. Hah - you'd think it was rocking horse s##t. Tried the usual
suspects but they either:
. don't have 2W at all
. don't go above 1M in 2W
. only have 2W in metal film and not sure about >1M

Any suggestions where I could source one?

Not a clue!

How about 2 x 10M 1W in parallel? I've got one if
someone has a second?

I'm actually leaning that way. Seems that once you reach 1M they don't stock
them any bigger than 1W.

Sorry, must be going colour blind - I have one
15M 1W carbon resistor.

No probs, I can source the 1W size fairly readily.

 

[Brian Goldsmith]

"budgie" <me@privacy.net> wrote

Have a 2W carbon 5M6 resistor that has gone high (as they do) and need to
replace it. Hah - you'd think it was rocking horse s##t. Tried the usual
suspects but they either:
.. don't have 2W at all
.. don't go above 1M in 2W
.. only have 2W in metal film and not sure about >1M

Any suggestions where I could source one?

***** WES components have 10 meg 1 watt high voltage focus resistors,you
could parallel two of them.Alternatively they have 5M1 1 watt as
standard,will certainly work in your case.

Brian Goldsmith.

 

[Fred Ferd]

It's in the focus divider and the original is 2W.

Ah, the focus circuit will be you will need 2W.

I'm not in the habit of
lowering ratings when the manufacturere chose to use a particular size.

Of course not, unless you were sure the rating was 2W for some other
reasom,

but yeah, focus circuit has a reasonably high voltage.

 

[budgie]

On Sat, 01 Jan 2005 12:08:33 GMT, "Fred Ferd" <fred@ferd.com> wrote:

It's in the focus divider and the original is 2W.

Ah, the focus circuit will be you will need 2W.
as I said

I'm not in the habit of
lowering ratings when the manufacturere chose to use a particular size.

Of course not, unless you were sure the rating was 2W for some other
reasom,

I work on the rationale that if the manufacturer put 2W in there, it was with
sound reason, ergo I don't lower it unless I reckon I know better. Usually I
don't.

but yeah, focus circuit has a reasonably high voltage.

yep

 

[Phil Allison]

"budgie"

It's in the focus divider and the original is 2W.

** That job requires a SPECIAL high voltage rated resistor - standard
ones will not last.

WES sell them - so do Farnell in One






............ Phil

 

[budgie]

On Sun, 2 Jan 2005 15:26:23 +1100, "Phil Allison" <philallison@tpg.com.au>
wrote:

"budgie"


It's in the focus divider and the original is 2W.


** That job requires a SPECIAL high voltage rated resistor - standard
ones will not last.

WES sell them

WES sell them - but not in 5M6.

(re-plonk!)

 

[Phil Allison]

"budgie" = pathetic fuckhead

"Phil Allison"

It's in the focus divider and the original is 2W.


** That job requires a SPECIAL high voltage rated resistor - standard
ones will not last.

WES sell them

WES sell them - but not in 5M6.

(re-plonk!)

** The WES cat. says they have them in 5.1 Mohms ( could easily be a
typo for 5.6 - call them) ) - ie within the needed tolerance - you
asinine FUCKHEAD !!!





................ Phil

 

[Franc Zabkar]

On Fri, 31 Dec 2004 14:25:36 +0800, budgie <me@privacy.net> put finger
to keyboard and composed:

On Fri, 31 Dec 2004 15:28:06 +1100, Mike Harding
mike_harding@nixspam.fastmail.fm> wrote:

On Fri, 31 Dec 2004 15:25:32 +1100, Mike Harding
mike_harding@nixspam.fastmail.fm> wrote:

On Fri, 31 Dec 2004 09:14:55 +0800, budgie <me@privacy.net> wrote:

Have a 2W carbon 5M6 resistor that has gone high (as they do) and need to
replace it. Hah - you'd think it was rocking horse s##t. Tried the usual
suspects but they either:
. don't have 2W at all
. don't go above 1M in 2W
. only have 2W in metal film and not sure about >1M

Any suggestions where I could source one?

Not a clue!

How about 2 x 10M 1W in parallel? I've got one if
someone has a second?


I'm actually leaning that way. Seems that once you reach 1M they don't stock
them any bigger than 1W.

If the application permits, I'd use a WES 1FCR3.3M 1W high voltage
focus resistor in series with a 1FCR2.2M. This *may* improve the
reliability.


- Franc Zabkar
--
Please remove one 's' from my address when replying by email.

 

[budgie]

On Mon, 03 Jan 2005 17:22:49 +1100, Franc Zabkar <fzabkar@optussnet.com.au>
wrote:

On Fri, 31 Dec 2004 14:25:36 +0800, budgie <me@privacy.net> put finger
to keyboard and composed:

On Fri, 31 Dec 2004 15:28:06 +1100, Mike Harding
mike_harding@nixspam.fastmail.fm> wrote:

On Fri, 31 Dec 2004 15:25:32 +1100, Mike Harding
mike_harding@nixspam.fastmail.fm> wrote:

On Fri, 31 Dec 2004 09:14:55 +0800, budgie <me@privacy.net> wrote:

Have a 2W carbon 5M6 resistor that has gone high (as they do) and need to
replace it. Hah - you'd think it was rocking horse s##t. Tried the usual
suspects but they either:
. don't have 2W at all
. don't go above 1M in 2W
. only have 2W in metal film and not sure about >1M

Any suggestions where I could source one?

Not a clue!

How about 2 x 10M 1W in parallel? I've got one if
someone has a second?


I'm actually leaning that way. Seems that once you reach 1M they don't stock
them any bigger than 1W.

If the application permits, I'd use a WES 1FCR3.3M 1W high voltage
focus resistor in series with a 1FCR2.2M. This *may* improve the
reliability.

That's the way I have been leaning. Would need the exact dimensions of the
focus resistors though to be sure it would be a reasonable fit - this is in a
fairly tight space.

 

[Brian Goldsmith]

"budgie" <me@privacy.net> wrote


That's the way I have been leaning. Would need the exact dimensions of the
focus resistors though to be sure it would be a reasonable fit - this is in
a
fairly tight space.

**** For pities sake,the bloody thing costs 90 effing
cents!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Not a tight space but a TIGHT ARSE!!!!!!!!!!!!!!!!!!!!!!!!!!!

Brian Goldsmith.

 

[budgie]

On Tue, 04 Jan 2005 09:51:15 GMT, "Brian Goldsmith"
<brian.goldsmith@nospam.echo1.com.au> wrote:

"budgie" <me@privacy.net> wrote


That's the way I have been leaning. Would need the exact dimensions of the
focus resistors though to be sure it would be a reasonable fit - this is in
a
fairly tight space.

**** For pities sake,the bloody thing costs 90 effing
cents!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Not a tight space but a TIGHT ARSE!!!!!!!!!!!!!!!!!!!!!!!!!!!

What's your problem, grumpy? Got a dose of the Phyllis-itis?

It's ten bucks by the time it gets to Perth.

Back in your cave.