Where can one get parts these days?...

[neo5...@gmail.com]

I suspect if a real source is around, no one wants to tell, but I am having a hard time trying to get simple passive components. Melf resistors, Pulse resistant resistors stuff like that.
Are there any places selling basic components besides E-Bay?

Thanks

Don

 

[John S]

On 4/22/2022 10:02 AM, neo5...@gmail.com wrote:

I suspect if a real source is around, no one wants to tell, but I am having a hard time trying to get simple passive components. Melf resistors, Pulse resistant resistors stuff like that.
Are there any places selling basic components besides E-Bay?

Thanks

Don

Mouser
Digikey

If you can\'t find it in one of those two places, then you don\'t need it.

 

[server]

On Fri, 22 Apr 2022 10:04:57 -0500, John S <Sophi.2@invalid.org>
wrote:

On 4/22/2022 10:02 AM, neo5...@gmail.com wrote:
I suspect if a real source is around, no one wants to tell, but I am having a hard time trying to get simple passive components. Melf resistors, Pulse resistant resistors stuff like that.
Are there any places selling basic components besides E-Bay?

Thanks

Don

Mouser
Digikey

If you can\'t find it in one of those two places, then you don\'t need it.

There is a surprising variety of parts from Amazon and even WalMart.



--

I yam what I yam - Popeye

 

[Lasse Langwadt Christensen]

fredag den 22. april 2022 kl. 17.02.10 UTC+2 skrev neo5...@gmail.com:

I suspect if a real source is around, no one wants to tell, but I am having a hard time trying to get simple passive components. Melf resistors, Pulse resistant resistors stuff like that.
Are there any places selling basic components besides E-Bay?

lcsc.com

 

[John Robertson]

On 2022/04/22 8:04 a.m., John S wrote:

On 4/22/2022 10:02 AM, neo5...@gmail.com wrote:
I suspect if a real source is around, no one wants to tell, but I am
having a hard time trying to get simple passive components. Melf
resistors, Pulse resistant resistors stuff like that.
Are there any places selling basic components besides E-Bay?

Thanks

Don

Mouser
Digikey

If you can\'t find it in one of those two places, then you don\'t need it.

Unless you are into restoring classic (pre-1990) equipment that is...

John :-#)#

--
(Please post followups or tech inquiries to the USENET newsgroup)
John\'s Jukes Ltd.
MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
(604)872-5757 (Pinballs, Jukes, Video Games)
www.flippers.com
\"Old pinballers never die, they just flip out.\"

 

[Klaus Kragelund]

22.04.22 19:02, Lasse Langwadt Christensen wrote:

fredag den 22. april 2022 kl. 17.02.10 UTC+2 skrev neo5...@gmail.com:
I suspect if a real source is around, no one wants to tell, but I am having a hard time trying to get simple passive components. Melf resistors, Pulse resistant resistors stuff like that.
Are there any places selling basic components besides E-Bay?

lcsc.com
Schhh. You are destroying the last reserve

--
Klaus

 

[rbowman]

On 04/22/2022 09:02 AM, neo5...@gmail.com wrote:

I suspect if a real source is around, no one wants to tell, but I am having a hard time trying to get simple passive components. Melf resistors, Pulse resistant resistors stuff like that.
Are there any places selling basic components besides E-Bay?

Thanks

Don

https://www.newark.com/
https://www.digikey.com/
https://www.allelectronics.com/

You didn\'t mention where you are. Newark has a UK warehouse but I don\'t
know how much they stock. DigiKey runs more toward digital devices as
you might guess. All Electronics is a bit strange. I think they\'re the
OddLots of the electronics world but sometimes you get lucky and find
something useful at a good price.

 

[John Doe]

rbowman wrote:

https://www.newark.com/
https://www.digikey.com/
https://www.allelectronics.com/

You didn\'t mention where you are. Newark has a UK warehouse but I don\'t
know how much they stock. DigiKey runs more toward digital devices as
you might guess. All Electronics is a bit strange. I think they\'re the
OddLots of the electronics world but sometimes you get lucky and find
something useful at a good price.

Is Mouser Electronics not in the ballpark?

 

[server]

rbowman <bowman@montana.com> wrote in
news:jcmf7vF227cU1@mid.individual.net:

On 04/22/2022 09:02 AM, neo5...@gmail.com wrote:
I suspect if a real source is around, no one wants to tell, but I
am having a hard time trying to get simple passive components.
Melf resistors, Pulse resistant resistors stuff like that. Are
there any places selling basic components besides E-Bay?

Thanks

Don

https://www.newark.com/
https://www.digikey.com/
https://www.allelectronics.com/

You didn\'t mention where you are. Newark has a UK warehouse but I
don\'t know how much they stock. DigiKey runs more toward digital
devices as you might guess. All Electronics is a bit strange. I
think they\'re the OddLots of the electronics world but sometimes
you get lucky and find something useful at a good price.

\"Stackpole\" makes hi rel carbon comp resistors with pulse tolerant
resistive media formulations.

 

[rbowman]

On 04/24/2022 08:32 PM, John Doe wrote:

rbowman wrote:

https://www.newark.com/
https://www.digikey.com/
https://www.allelectronics.com/

You didn\'t mention where you are. Newark has a UK warehouse but I don\'t
know how much they stock. DigiKey runs more toward digital devices as
you might guess. All Electronics is a bit strange. I think they\'re the
OddLots of the electronics world but sometimes you get lucky and find
something useful at a good price.

Is Mouser Electronics not in the ballpark?

Definitely.

 

[rbowman]

On 04/24/2022 08:53 PM, DecadentLinuxUserNumeroUno@decadence.org wrote:

rbowman <bowman@montana.com> wrote in
news:jcmf7vF227cU1@mid.individual.net:

On 04/22/2022 09:02 AM, neo5...@gmail.com wrote:
I suspect if a real source is around, no one wants to tell, but I
am having a hard time trying to get simple passive components.
Melf resistors, Pulse resistant resistors stuff like that. Are
there any places selling basic components besides E-Bay?

Thanks

Don

https://www.newark.com/
https://www.digikey.com/
https://www.allelectronics.com/

You didn\'t mention where you are. Newark has a UK warehouse but I
don\'t know how much they stock. DigiKey runs more toward digital
devices as you might guess. All Electronics is a bit strange. I
think they\'re the OddLots of the electronics world but sometimes
you get lucky and find something useful at a good price.



\"Stackpole\" makes hi rel carbon comp resistors with pulse tolerant
resistive media formulations.

Yeah, but the question was where to buy them.

https://www.arrow.com/en

Another one I forgot about.

 

[server]

On Fri, 22 Apr 2022 08:02:05 -0700 (PDT), \"neo5...@gmail.com\"
<neo5bass@gmail.com> wrote:

I suspect if a real source is around, no one wants to tell, but I am having a hard time trying to get simple passive components. Melf resistors, Pulse resistant resistors stuff like that.
Are there any places selling basic components besides E-Bay?

Thanks

Don

Why melfs?

The x-chapters (H+H) have some great data on resistor overload.



--

I yam what I yam - Popeye

 

[Phil Hobbs]

jlarkin@highlandsniptechnology.com wrote:

On Fri, 22 Apr 2022 10:04:57 -0500, John S <Sophi.2@invalid.org
wrote:

On 4/22/2022 10:02 AM, neo5...@gmail.com wrote:
I suspect if a real source is around, no one wants to tell, but I am having a hard time trying to get simple passive components. Melf resistors, Pulse resistant resistors stuff like that.
Are there any places selling basic components besides E-Bay?

Thanks

Don

Mouser
Digikey

If you can\'t find it in one of those two places, then you don\'t need it.

There is a surprising variety of parts from Amazon and even WalMart.

A plug for the metasearch engines: octopart.com, findchips.com,
oemstrade.com.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com

 

[Tabby]

On Monday, 25 April 2022 at 14:58:45 UTC+1, jla...@highlandsniptechnology.com wrote:

On Fri, 22 Apr 2022 08:02:05 -0700 (PDT), \"neo5...@gmail.com\"
neo5...@gmail.com> wrote:

I suspect if a real source is around, no one wants to tell, but I am having a hard time trying to get simple passive components. Melf resistors, Pulse resistant resistors stuff like that.
Are there any places selling basic components besides E-Bay?

Thanks

Don
Why melfs?

The x-chapters (H+H) have some great data on resistor overload.

always hated how milf resistors roll off the board if not glued.

 

[server]

On Tue, 26 Apr 2022 06:12:36 -0700 (PDT), Tabby <tabbypurr@gmail.com>
wrote:

On Monday, 25 April 2022 at 14:58:45 UTC+1, jla...@highlandsniptechnology.com wrote:
On Fri, 22 Apr 2022 08:02:05 -0700 (PDT), \"neo5...@gmail.com\"
neo5...@gmail.com> wrote:

I suspect if a real source is around, no one wants to tell, but I am having a hard time trying to get simple passive components. Melf resistors, Pulse resistant resistors stuff like that.
Are there any places selling basic components besides E-Bay?

Thanks

Don
Why melfs?

The x-chapters (H+H) have some great data on resistor overload.

always hated how milf resistors roll off the board if not glued.

Pick-and-place machines don\'t like them either.

Silly concept.

Here\'s an instrument with a strange mix of melfs and normal parts.

https://www.dropbox.com/sh/zx1zj4a3uxfvw18/AABzb61Kobc0-6NS9Co8MRTXa?dl=0



--

Anybody can count to one.

- Robert Widlar

 

[server]

Tabby <tabbypurr@gmail.com> wrote in
news:fad3b7e4-fb8b-48e5-909d-0caa638ea577n@googlegroups.com:

On Monday, 25 April 2022 at 14:58:45 UTC+1,
jla...@highlandsniptechnology.com wrote:
On Fri, 22 Apr 2022 08:02:05 -0700 (PDT), \"neo5...@gmail.com\"
neo5...@gmail.com> wrote:

I suspect if a real source is around, no one wants to tell, but
I am having a hard time trying to get simple passive components.
Melf resistors, Pulse resistant resistors stuff like that. Are
there any places selling basic components besides E-Bay?

Thanks

Don
Why melfs?

The x-chapters (H+H) have some great data on resistor overload.

always hated how milf resistors roll off the board if not glued.

I am sure that even a soldered milf resistor could heat up and
reflow its solder and get knocked loose too.

It is easy enough to fashion the leads of an axial leaded carbon
comp resositor to attach to a pair of SMD pads. I have done so, in
fact. Even done so with HV feedback resistors Protruding lead ends
and HV potentials do not always mix well.

We \"bump soldered\" a lot of parts in the HV sections of our
designs. After soldering normally perform quick additions of more
solder to form a bead of solder at the node. Cannot do it too slow
or it wicks into the hole just as normal. Makes for a less noisy
output as well. Corona isn\'t just a glowing halo.

 

[server]

jlarkin@highlandsniptechnology.com wrote in
news:cmuf6hl3nff5nmv89ocilj0kdbjnujc8gj@4ax.com:

Pick-and-place machines don\'t like them either.

Depends on the pick head used. D\'Oh!

> Silly concept.

Brainless assessor. Silly assessment. Par for the course for you,
Johnny.

They were to replicate the design and features of glass encapsulated,
hermetically sealed components like diodes and such.

 

[John Larkin]

On Tue, 26 Apr 2022 20:50:58 -0000 (UTC),
DecadentLinuxUserNumeroUno@decadence.org wrote:

jlarkin@highlandsniptechnology.com wrote in
news:cmuf6hl3nff5nmv89ocilj0kdbjnujc8gj@4ax.com:

Pick-and-place machines don\'t like them either.

Depends on the pick head used. D\'Oh!

Silly concept.

Brainless assessor. Silly assessment. Par for the course for you,
Johnny.

Do you design with melfs? Why?

They were to replicate the design and features of glass encapsulated,
hermetically sealed components like diodes and such.

Why?

--

If a man will begin with certainties, he shall end with doubts,
but if he will be content to begin with doubts he shall end in certainties.
Francis Bacon

 

[whit3rd]

On Tuesday, April 26, 2022 at 2:13:58 PM UTC-7, John Larkin wrote:

On Tue, 26 Apr 2022 20:50:58 -0000 (UTC),
DecadentLinux...@decadence.org wrote:

Do you design with melfs? Why?

They were to replicate the design and features of glass encapsulated,
hermetically sealed components like diodes and such.

Why?

The glass package is thermally better than epoxies (or used to be)
and extremely well sealed against contaminants. Classic diode test: run
ten or twenty amps through a 1N4007 until you hear a \'pow\' and see smoke.
Then put it on a curve tracer. It still works normally (underneath the epoxy,
the package was plug-sealed glass). The epoxy is burnt and cracked, though.

 

[Clive Arthur]

On 25/04/2022 14:58, jlarkin@highlandsniptechnology.com wrote:

On Fri, 22 Apr 2022 08:02:05 -0700 (PDT), \"neo5...@gmail.com\"
neo5bass@gmail.com> wrote:

I suspect if a real source is around, no one wants to tell, but I am having a hard time trying to get simple passive components. Melf resistors, Pulse resistant resistors stuff like that.
Are there any places selling basic components besides E-Bay?

Thanks

Don

Why melfs?

The x-chapters (H+H) have some great data on resistor overload.

MELFs dissipate more for a given footprint and can take a bigger solder
fillet which holds them in place better under high vibration,
particularly when the solder\'s weakened at high temperatures, and if
potted, there\'s more body for the potting to hold.

They\'re also much prettier.

Personally, I find them easier to handle if I have to replace one
because there\'s more to grip, but that\'s a trivial concern.

But they have been noticeably harder to obtain for a few years.

Q. Were MELFs originally made that way because they\'re essentially
leaded parts without the leads? [It goes full circle - chop open a
leaded dipped ceramic capacitor and you\'ll often find inside a surface
mount part with leads soldered/welded on.]

--
Cheers
Clive