having a hard time finding these components

T

TheExperimenter

Guest
I desperately need these three items for a project, but I'm having a
hard time finding them. I had hoped to order all from a single source
to save shipping costs, but I don't know if that's feasible. A cross
reference with same pinouts might be helpful, but even having trouble
with that... and running short on time. Any parts source and/or good
cross reference would be welcomed. Thank you.

D40D5 NPN power tab transistor
2n2646 UJT
MCR 106-8 or C107D or 2n4444
 
TheExperimenter wrote:

------------------------
I desperately need these three items for a project, but I'm having a
hard time finding them. I had hoped to order all from a single source
to save shipping costs, but I don't know if that's feasible. A cross
reference with same pinouts might be helpful, but even having trouble
with that... and running short on time. Any parts source and/or good
cross reference would be welcomed. Thank you.

D40D5 NPN power tab transistor
2n2646 UJT
MCR 106-8 or C107D or 2n4444

** Please, try making something designed this century, not 50 years ago.

You are just making life hard for yourself.

I remember buying 2N4444s in 1970 for use in a PSU crowbar circuit.




...... Phil
 
Rick Cunthead wrote>

-----------------
D40D5 NPN power tab transistor
2n2646 UJT
MCR 106-8 or C107D or 2n4444



** Please, try making something designed this century, not 50 years ago.

You are just making life hard for yourself.

I remember buying 2N4444s in 1970 for use in a PSU crowbar circuit.

That was Phil's way of saying, "Tell us what you are trying to build and maybe we can help you build something better than uses currently available parts."

** Wrong NG for that, this is not any kind of kindergarten like you seem to think.

sci.elctronics basics is better for beginners.


...... Phil
 
On Friday, October 25, 2019 at 7:50:23 PM UTC-4, Phil Allison wrote:
TheExperimenter wrote:

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

I desperately need these three items for a project, but I'm having a
hard time finding them. I had hoped to order all from a single source
to save shipping costs, but I don't know if that's feasible. A cross
reference with same pinouts might be helpful, but even having trouble
with that... and running short on time. Any parts source and/or good
cross reference would be welcomed. Thank you.

D40D5 NPN power tab transistor
2n2646 UJT
MCR 106-8 or C107D or 2n4444



** Please, try making something designed this century, not 50 years ago.

You are just making life hard for yourself.

I remember buying 2N4444s in 1970 for use in a PSU crowbar circuit.

That was Phil's way of saying, "Tell us what you are trying to build and maybe we can help you build something better than uses currently available parts."

--

Rick C.

- Get 1,000 miles of free Supercharging
- Tesla referral code - https://ts.la/richard11209
 
On Friday, October 25, 2019 at 9:38:34 PM UTC-4, Phil Allison wrote:
Rick Cunthead wrote

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


D40D5 NPN power tab transistor
2n2646 UJT
MCR 106-8 or C107D or 2n4444



** Please, try making something designed this century, not 50 years ago.

You are just making life hard for yourself.

I remember buying 2N4444s in 1970 for use in a PSU crowbar circuit.

That was Phil's way of saying, "Tell us what you are trying to build and maybe we can help you build something better than uses currently available parts."


** Wrong NG for that, this is not any kind of kindergarten like you seem to think.

sci.elctronics basics is better for beginners.

See! I was right. This is Phil's way of saying he will be glad to help you find a better design. Isn't he a great guy?

--

Rick C.

+ Get 1,000 miles of free Supercharging
+ Tesla referral code - https://ts.la/richard11209
 
Am 26.10.2019 um 01:33 schrieb TheExperimenter:
I desperately need these three items for a project, but I'm having a
hard time finding them.  I had hoped to order all from a single source
to save shipping costs, but I don't know if that's feasible.  A cross
reference with same pinouts might be helpful, but even having trouble
with that... and running short on time.  Any parts source and/or good
cross reference would be welcomed.  Thank you.

D40D5 NPN power tab transistor
2n2646 UJT
MCR 106-8 or C107D or 2n4444

https://www.ebay.de/sch/Business-Industrie/12576/i.html?_from=R40&_nkw=D40D5
https://www.ebay.de/sch/i.html?_odkw=MCR+106-8&_osacat=12576&_from=R40&_trksid=m570.l1313&_nkw=2n4444&_sacat=12576
https://www.ebay.de/sch/i.html?_odkw=D40D5&_osacat=12576&_from=R40&_trksid=m570.l1313&_nkw=MCR+106-8&_sacat=12576
https://www.ebay.de/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=2n2646&_sacat=0

HTH, peter
 
Rick Cunthead pooped:

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

See! I was right.


** Like hell you were.


FYI to all,

This idiot troll sounds like one of them aging, hippie morons.

Flowers in his hair, illegal drugs in his blood stream and a brain devoid of all insight.

Expects us to set up a kindergarten here, to suit him.

But does nothing to help the OP.

Bit of a worry, that.




..... Phil
 
PeterSchneider <PeterSchneider@gmail.cn> wrote:

Am 26.10.2019 um 01:33 schrieb TheExperimenter:
I desperately need these three items for a project, but I'm having a
hard time finding them.  I had hoped to order all from a single source
to save shipping costs, but I don't know if that's feasible.  A cross
reference with same pinouts might be helpful, but even having trouble
with that... and running short on time.  Any parts source and/or good
cross reference would be welcomed.  Thank you.

D40D5 NPN power tab transistor
2n2646 UJT
MCR 106-8 or C107D or 2n4444

https://www.ebay.de/sch/Business-Industrie/12576/i.html?_from=R40&_nkw=D4
0D5
https://www.ebay.de/sch/i.html?_odkw=MCR+106-8&_osacat=12576&_from=R40&_t
rksid=m570.l1313&_nkw=2n4444&_sacat=12576
https://www.ebay.de/sch/i.html?_odkw=D40D5&_osacat=12576&_from=R40&_trksi
d=m570.l1313&_nkw=MCR+106-8&_sacat=12576
https://www.ebay.de/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=2n2646&_
sacat=0

HTH, peter

For english, change www.ebay.de to www.ebay.com

https://www.ebay.com/sch/Business-Industrie/12576/i.html?_from=R40&_nkw=D40
D5

https://www.ebay.com/sch/i.html?_odkw=MCR+106-8&_osacat=12576&_from=R40&_tr
ksid=m570.l1313&_nkw=2n4444&_sacat=12576

https://www.ebay.com/sch/i.html?_odkw=D40D5&_osacat=12576&_from=R40&_trksid
=m570.l1313&_nkw=MCR+106-8&_sacat=12576

https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=2n2646&_s
acat=0
 
Phil Allison <pallison49@gmail.com> wrote in
news:d50ab16c-c80f-42af-92a7-5fdefaecbfbc@googlegroups.com:

Rick Cunthead pooped:

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


See! I was right.



** Like hell you were.


FYI to all,

This idiot troll sounds like one of them aging, hippie morons.

Flowers in his hair, illegal drugs in his blood stream and a brain
devoid of all insight.

Expects us to set up a kindergarten here, to suit him.

But does nothing to help the OP.

Bit of a worry, that.

Yeah, the whole fuckin' world is goin' to pot!

Maybe you should just go jump off a bridge!

It would solve all of your problems and the world would still
continue to turn. And sed would barely notice.

We got no more Music prodigy either, going 'round composing
symphonies and operas and such...

Nobody bitchin' about that.

Oh, NO! The world is going through an intellectual lull, and just
at the moment when we are starting to rely on computers doing all the
figuring for us! We are truly doomed!

Bwuahahahahahha!

I feel your pain, Phil. Sure...

Then, I light up, and think about anything but you.

What is with the twenty blank lines after every post?
 
On Saturday, October 26, 2019 at 5:56:13 AM UTC-4, Phil Allison wrote:
Rick Cunthead pooped:

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


See! I was right.



** Like hell you were.


FYI to all,

This idiot troll sounds like one of them aging, hippie morons.

Flowers in his hair, illegal drugs in his blood stream and a brain devoid of all insight.

Expects us to set up a kindergarten here, to suit him.

But does nothing to help the OP.

Bit of a worry, that.

Sorry if I worry you. I get the impression you are worried about a lot of things though, so I guess it's no big deal.

bye

--

Rick C.

-- Get 2,000 miles of free Supercharging
-- Tesla referral code - https://ts.la/richard11209
 
Steve Wilson <no@spam.com> wrote:
PeterSchneider <PeterSchneider@gmail.cn> wrote:

Am 26.10.2019 um 01:33 schrieb TheExperimenter:
I desperately need these three items for a project, but I'm having a
hard time finding them.?? I had hoped to order all from a single source
to save shipping costs, but I don't know if that's feasible.?? A cross
reference with same pinouts might be helpful, but even having trouble
with that... and running short on time.?? Any parts source and/or good
cross reference would be welcomed.?? Thank you.

D40D5 NPN power tab transistor
2n2646 UJT
MCR 106-8 or C107D or 2n4444

https://www.ebay.de/sch/Business-Industrie/12576/i.html?_from=R40&_nkw=D40D5
https://www.ebay.de/sch/i.html?_odkw=MCR+106-8&_osacat=12576&_from=R40&_trksid=m570.l1313&_nkw=2n4444&_sacat=12576
https://www.ebay.de/sch/i.html?_odkw=D40D5&_osacat=12576&_from=R40&_trksid=m570.l1313&_nkw=MCR+106-8&_sacat=12576
https://www.ebay.de/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=2n2646&_sacat=0

HTH, peter

For english, change www.ebay.de to www.ebay.com

https://www.ebay.com/sch/Business-Industrie/12576/i.html?_from=R40&_nkw=D40D5

https://www.ebay.com/sch/i.html?_odkw=MCR+106-8&_osacat=12576&_from=R40&_trksid=m570.l1313&_nkw=2n4444&_sacat=12576

https://www.ebay.com/sch/i.html?_odkw=D40D5&_osacat=12576&_from=R40&_trksid=m570.l1313&_nkw=MCR+106-8&_sacat=12576

https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=2n2646&_sacat=0

English
https://www.ebay.com/sch/i.html?_nkw=2n2646+ujt

German
https://www.ebay.de/sch/i.html?_nkw=2n2646+ujt

Thank you, 73,

--
Don Kuenz KB7RPU
There was a young lady named Bright Whose speed was far faster than light;
She set out one day In a relative way And returned on the previous night.
 
On Friday, October 25, 2019 at 4:33:23 PM UTC-7, TheExperimenter wrote:
I desperately need these three items for a project, but I'm having a
hard time finding them.

D40D5 NPN power tab transistor
... an old GE part, 60V, 1A NPN, with LOTS of available just-as-good replacements
I'd consider TIP31C

2n24646
a metal-case UJT; there's still 2N6027 in production, in a plastic case

> MCR 106-8 or C107D or 2n4444
a 400V 4A SCR, plastic; not used much, there are more flexible power options
nowadays, but MCR72-8 is still around (TO-220 instead of TO-202 case)
 
On 10/26/19 1:45 PM, whit3rd wrote:
D40D5 NPN power tab transistor
... an old GE part, 60V, 1A NPN, with LOTS of available just-as-good replacements
I'd consider TIP31C

Briefly checking over your suggestions and plugging them in, they seem
like possible good options, but I lack the ability to find out if they'd
be direct substitutions, or would I have to make circuit changes, swap
leads. I don't mind swapping leads if I had to, but circuit changes I
wouldn't be able to make. Any more info on these would be welcome,
including where I might be able to plug in and get results for as many
equivalent cross references as possible. Thanks!

2n24646
a metal-case UJT; there's still 2N6027 in production, in a plastic case

MCR 106-8 or C107D or 2n4444
a 400V 4A SCR, plastic; not used much, there are more flexible power options
nowadays, but MCR72-8 is still around (TO-220 instead of TO-202 case)
 
On 10/26/19 2:53 PM, Winfield Hill wrote:
TheExperimenter wrote...

Briefly checking over your suggestions and plugging them in,
they seem like possible good options, but I lack the ability ...

It would be a good idea if you were to post a schematic,
then others could evaluate the viability of substitutes.

Unfortunately, the exact schematic does not appear online and is
copyrighted. However, it appeared in Radio Electronics Magazine
September 1986, p. 42 stun gun. A similar one adapted from the article
is here, but does not use the same components:

http://www.learningelectronics.net/VA3AVR/circ/hv/stungun/stungun.html

I built the gun from the kit in 1994, but my wife used it a month ago
and burned it out while scaring off a would be attacker.

I originally contacted the firm that made it, but have not heard back
after several weeks, so I went parts looking myself. I don't trust the
ones with the puny "400 KV" modules that seem to be front and center
now. This one really worked and was tested scientifically at the time
which is why I'd like to get the replacement components.
 
TheExperimenter wrote...
Briefly checking over your suggestions and plugging them in,
they seem like possible good options, but I lack the ability ...

It would be a good idea if you were to post a schematic,
then others could evaluate the viability of substitutes.


--
Thanks,
- Win
 
On 2019-10-26, TheExperimenter <theexp8712@noaol.net> wrote:

I originally contacted the firm that made it, but have not heard back
after several weeks, so I went parts looking myself. I don't trust the
ones with the puny "400 KV" modules that seem to be front and center
now. This one really worked and was tested scientifically at the time
which is why I'd like to get the replacement components.

"400kV" tested by Big Clive.
https://www.youtube.com/watch?v=iDJp2tHmEQo

--
When I tried casting out nines I made a hash of it.
 
On 10/26/19 4:05 PM, Jasen Betts wrote:

"400kV" tested by Big Clive.
https://www.youtube.com/watch?v=iDJp2tHmEQo

I have seen that video. I do have one of the modules. It uses about 12
watts of power on the input side, not sure how much output. Up to 3/4"
sparks on a good day so maybe 15-20 Kv tops. No, it isn't going to
paralyze anyone. Might cause pain but that's about it. The one I'm
trying to repair though is a different story. 2" sparks between
terminals, pokes holes in a water filled styrofoam cup almost instantly.
The transformers are still good, but two of the solid state components
bad which is why I was searching for replacements. I hope folks can
help. Trying to find the originals would be too costly.
 
Rick Cunthead Contest Shifter IDIOT wrote:

--------------------------------------
See! I was right.



** Like hell you were.


FYI to all,

This idiot troll sounds like one of them aging, hippie morons.

Flowers in his hair, illegal drugs in his blood stream and a brain devoid of all insight.

Expects us to set up a kindergarten here, to suit him.

But does nothing to help the OP.

Bit of a worry, that.

Sorry if I worry you.

** False conclusion, just like every one this liar makes.


I get the impression ..

** No you don't.

You get nothing at all, cos you're anencephalic.



..... Phil
 
On 10/26/19 4:49 PM, Phil Allison wrote:


** Unfortunately that is an ILLEGAL weapon in many coutries -
including Australia.  So I'm out.

Sorry you feel that way, but I understand.  Where I live in the US, they
are not illegal.

FYI:

This post fits perfectly my description of the vast majority of usenet
inquiries about home projects:

Its either stupid, dangerous or illegal - sometimes all three.

By the way, it was for possible responses like yours which is why I was
hesitant to post further information, but Winfield Hill suggested it, so
I reluctantly decided to do so. If anyone else has to bow out due to
the possible legal issues, I'll fully understand. That being said, I do
see plenty of electronic devices far more dangerous than this that
people are working on all the time (hobby x-ray machines, for example),
yet I see a lot of information freely offered to such ventures.
 
On 10/26/19 4:49 PM, Phil Allison wrote:
** Unfortunately that is an ILLEGAL weapon in many coutries - including Australia. So I'm out.

Sorry you feel that way, but I understand. Where I live in the US, they
are not illegal.

FYI:

This post fits perfectly my description of the vast majority of usenet inquiries about home projects:

Its either stupid, dangerous or illegal - sometimes all three.

Not this I don't quite concur, but you are welcome to your opinion. I
am not here to argue, just to procure the necessary replacement parts
and/or their equivalents.


..... Phil
 

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