I am replacing an old TRIAC that is used for a solenoid driver driven by
a photo-flash (I have dozens of these in my classic rifle gallery) and I
can't find anything on line about this particular device.

I know it is 400V, 3A, and is in a TO-11 like metal can however what I
can't find is the Gate current. This is a sensitive gate TRIAC and I
suspect it is either a 3MA or a 10MA device, but would like a copy of
the original TECCOR specs to be sure that the replacement I am using is
close enough to the original for long term reliability. This is being
controlled by a device called a Vactrol - VTL2C3, and I have several
dozen of these controllers that eventually need upgrading.

So, if anyone has a TECCOR Electronics Inc. manual lying around from the
early 70s and can scan me the page(s) on the Q4003M3 that would be
great. I have found sheets online for other flavours of the Q4003
series, but just not the Mx version.

Thanks!

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."

In article ,
says...

I am replacing an old TRIAC that is used for a solenoid driver driven by
a photo-flash (I have dozens of these in my classic rifle gallery) and I
can't find anything on line about this particular device.

I know it is 400V, 3A, and is in a TO-11 like metal can however what I
can't find is the Gate current. This is a sensitive gate TRIAC and I
suspect it is either a 3MA or a 10MA device, but would like a copy of
the original TECCOR specs to be sure that the replacement I am using is
close enough to the original for long term reliability. This is being
controlled by a device called a Vactrol - VTL2C3, and I have several
dozen of these controllers that eventually need upgrading.

So, if anyone has a TECCOR Electronics Inc. manual lying around from the
early 70s and can scan me the page(s) on the Q4003M3 that would be
great. I have found sheets online for other flavours of the Q4003
series, but just not the Mx version.


Try this page.

http://www.datasheetarchive.jp/short...t/Q4003M3.html

On 2017/08/26 12:20 PM, Ralph Mowery wrote:
In article ,
says...

I am replacing an old TRIAC that is used for a solenoid driver driven by
a photo-flash (I have dozens of these in my classic rifle gallery) and I
can't find anything on line about this particular device.

I know it is 400V, 3A, and is in a TO-11 like metal can however what I
can't find is the Gate current. This is a sensitive gate TRIAC and I
suspect it is either a 3MA or a 10MA device, but would like a copy of
the original TECCOR specs to be sure that the replacement I am using is
close enough to the original for long term reliability. This is being
controlled by a device called a Vactrol - VTL2C3, and I have several
dozen of these controllers that eventually need upgrading.

So, if anyone has a TECCOR Electronics Inc. manual lying around from the
early 70s and can scan me the page(s) on the Q4003M3 that would be
great. I have found sheets online for other flavours of the Q4003
series, but just not the Mx version.


Try this page.

http://www.datasheetarchive.jp/short...t/Q4003M3.html



Ah, yes, I had previously found that page. I just trust the
manufacturers spec sheets more than a synopsis version. It is probably
accurate, but who knows?

Thanks,

John :-#)#

John Robertson wrote:
I am replacing an old TRIAC that is used for a solenoid driver driven
by a photo-flash (I have dozens of these in my classic rifle gallery)
and I can't find anything on line about this particular device.

I know it is 400V, 3A, and is in a TO-11 like metal can however what I
can't find is the Gate current. This is a sensitive gate TRIAC and I
suspect it is either a 3MA or a 10MA device, but would like a copy of
the original TECCOR specs to be sure that the replacement I am using
is close enough to the original for long term reliability. This is
being controlled by a device called a Vactrol - VTL2C3, and I have
several dozen of these controllers that eventually need upgrading.

So, if anyone has a TECCOR Electronics Inc. manual lying around from
the early 70s and can scan me the page(s) on the Q4003M3 that would be
great. I have found sheets online for other flavours of the Q4003
series, but just not the Mx version.

Thanks!

John :-#)#


The Teccor triac part numbering scheme says that the "M" is for a
non-isolated TO-218 package. You could just substitute another package type
such as the "F" or "R" package and get the same triac in a slightly
different package.
Looks like the "M" package was discontinued for triacs years ago,

Dave M

On 2017/08/26 7:52 PM, Dave M wrote:
John Robertson wrote:
I am replacing an old TRIAC that is used for a solenoid driver driven
by a photo-flash (I have dozens of these in my classic rifle gallery)
and I can't find anything on line about this particular device.

I know it is 400V, 3A, and is in a TO-11 like metal can however what I
can't find is the Gate current. This is a sensitive gate TRIAC and I
suspect it is either a 3MA or a 10MA device, but would like a copy of
the original TECCOR specs to be sure that the replacement I am using
is close enough to the original for long term reliability. This is
being controlled by a device called a Vactrol - VTL2C3, and I have
several dozen of these controllers that eventually need upgrading.

So, if anyone has a TECCOR Electronics Inc. manual lying around from
the early 70s and can scan me the page(s) on the Q4003M3 that would be
great. I have found sheets online for other flavours of the Q4003
series, but just not the Mx version.

Thanks!

John :-#)#


The Teccor triac part numbering scheme says that the "M" is for a
non-isolated TO-218 package. You could just substitute another package type
such as the "F" or "R" package and get the same triac in a slightly
different package.
Looks like the "M" package was discontinued for triacs years ago,

Dave M



Yes, I have tried already a few other sensitive gate TRIACs (2N6073 is
close) in place of this one, but none seem to work the same way even
when they appear to have similar ratings. The TRIAC is controlled by a
LED/Photo-resistor (Vactrol) instead of a LED/Opto DIAC or similar.
Appears to be using Quadrant II control where the Vactrol enables the
TRIAC via a 12K resistor to M1 where M2 is connected to the load. M1 is
tied to the power return/neutral (white) side of the 115VAC power. Here
is the PDF circuit:

http://www.flippers.com/pdfs/Vactrol...lled_TRIAC.pdf

I have tried subbing a MOC3020 LED-OptoTriac but that didn't work
reliably. Basically this circuit works by a CDS cell on the input that
reacts to a photoflash strobe in my rifles at the gallery. Problem is
this is 1970s tech and they are gradually failing. Recapping helped, but
now the opto-couplers are breaking down and my transistor theory is too
weak to change this one-shot monostable timer output to trigger
something more up to date in TRIAC drivers.

I just need to sit down and spend a couple of hours on this project.

Thanks,

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."

Hi,

Electronic Surplus in Ohio has a version available in a different
package. I don't know it this helps or not but:

http://www.electronicsurplus.com/cat...?cat=0&q=Q4003

I've found them to be a reliable vendor.

Regards,
Tim



On 8/26/2017 10:46 AM, John Robertson wrote:
I am replacing an old TRIAC that is used for a solenoid driver driven by
a photo-flash (I have dozens of these in my classic rifle gallery) and I
can't find anything on line about this particular device.

I know it is 400V, 3A, and is in a TO-11 like metal can however what I
can't find is the Gate current. This is a sensitive gate TRIAC and I
suspect it is either a 3MA or a 10MA device, but would like a copy of
the original TECCOR specs to be sure that the replacement I am using is
close enough to the original for long term reliability. This is being
controlled by a device called a Vactrol - VTL2C3, and I have several
dozen of these controllers that eventually need upgrading.

So, if anyone has a TECCOR Electronics Inc. manual lying around from the
early 70s and can scan me the page(s) on the Q4003M3 that would be
great. I have found sheets online for other flavours of the Q4003
series, but just not the Mx version.

Thanks!

John :-#)#

John Robertson wrote:
On 2017/08/26 7:52 PM, Dave M wrote:
John Robertson wrote:
I am replacing an old TRIAC that is used for a solenoid driver
driven by a photo-flash (I have dozens of these in my classic rifle
gallery) and I can't find anything on line about this particular
device. I know it is 400V, 3A, and is in a TO-11 like metal can however
what I can't find is the Gate current. This is a sensitive gate
TRIAC and I suspect it is either a 3MA or a 10MA device, but would
like a copy of the original TECCOR specs to be sure that the
replacement I am using is close enough to the original for long
term reliability. This is being controlled by a device called a
Vactrol - VTL2C3, and I have several dozen of these controllers
that eventually need upgrading. So, if anyone has a TECCOR Electronics
Inc. manual lying around from
the early 70s and can scan me the page(s) on the Q4003M3 that would
be great. I have found sheets online for other flavours of the Q4003
series, but just not the Mx version.

Thanks!

John :-#)#


The Teccor triac part numbering scheme says that the "M" is for a
non-isolated TO-218 package. You could just substitute another
package type such as the "F" or "R" package and get the same triac
in a slightly different package.
Looks like the "M" package was discontinued for triacs years ago,

Dave M



Yes, I have tried already a few other sensitive gate TRIACs (2N6073 is
close) in place of this one, but none seem to work the same way even
when they appear to have similar ratings. The TRIAC is controlled by a
LED/Photo-resistor (Vactrol) instead of a LED/Opto DIAC or similar.
Appears to be using Quadrant II control where the Vactrol enables the
TRIAC via a 12K resistor to M1 where M2 is connected to the load. M1
is tied to the power return/neutral (white) side of the 115VAC power.
Here is the PDF circuit:

http://www.flippers.com/pdfs/Vactrol...lled_TRIAC.pdf

I have tried subbing a MOC3020 LED-OptoTriac but that didn't work
reliably. Basically this circuit works by a CDS cell on the input that
reacts to a photoflash strobe in my rifles at the gallery. Problem is
this is 1970s tech and they are gradually failing. Recapping helped,
but now the opto-couplers are breaking down and my transistor theory
is too weak to change this one-shot monostable timer output to trigger
something more up to date in TRIAC drivers.

I just need to sit down and spend a couple of hours on this project.

Thanks,

John :-#)#


Seems like a triggered one-shot 555 timer circuit would be a natural
solution to this problem. Circuit values are easily calculated for the
required delay, and the 555 can drive the triac directly or through an
optocoupler.

What's the normal ON time for the existing circuit? Do you use only the
photocell input or in conjunction with the reed switch input?

Dave M

Dave M wrote:
John Robertson wrote:
On 2017/08/26 7:52 PM, Dave M wrote:
John Robertson wrote:
I am replacing an old TRIAC that is used for a solenoid driver
driven by a photo-flash (I have dozens of these in my classic rifle
gallery) and I can't find anything on line about this particular
device. I know it is 400V, 3A, and is in a TO-11 like metal can
however what I can't find is the Gate current. This is a sensitive
gate TRIAC and I suspect it is either a 3MA or a 10MA device, but would
like a copy of the original TECCOR specs to be sure that the
replacement I am using is close enough to the original for long
term reliability. This is being controlled by a device called a
Vactrol - VTL2C3, and I have several dozen of these controllers
that eventually need upgrading. So, if anyone has a TECCOR
Electronics Inc. manual lying around from
the early 70s and can scan me the page(s) on the Q4003M3 that would
be great. I have found sheets online for other flavours of the
Q4003 series, but just not the Mx version.

Thanks!

John :-#)#


I just need to sit down and spend a couple of hours on this project.

Thanks,

John :-#)#


Seems like a triggered one-shot 555 timer circuit would be a natural
solution to this problem. Circuit values are easily calculated for
the required delay, and the 555 can drive the triac directly or
through an optocoupler.

What's the normal ON time for the existing circuit? Do you use only
the photocell input or in conjunction with the reed switch input?

Dave M

This is a basic circuit for a 555 monostable. Circuit values easily
determined from one-shot requirements.


Please view in a fixed-width font such as Courier.

+Vcc
|
|
| AC
+--------------+---------------+-------+ +--
| | | | |
| | | +-+-+ |
+-+-+ +-+-+ | | | +---+
| | | | | | | | |
| | | | | |R3 | | |MT1
|R1 | | | | | | | +-+-+
| | |R2 | | | | +--------+ | | |
| | | | +----+ +-+-+ | | | | |
| | | | | | +---+ +--+ | |Triac
+-+-+ +-+-+ +----+----+---+ | | | |
| | | 4 8 | | Opto | +-+G |
| | | | | Triac | | +-+-+
+--------------------+2 | | Driver | | |MT2
| | | | | | | |
| | | +-------+ +--+ |
| | | | | | |
| | | | +--------+ +--
+-+-+ +-----+6 | Load
| | | | NE555 |
| | | | |
| |Photo +-----+7 |
| |Cell | | |
| | | | |
+-+-+ | | |
| +-+-+ | |
| | | | |
--+-- | | | 5 1 |
Gnd |C1 | +----+-----+--+
| | | |
| | +-+-+ |
+-+-+ | | |
| |C2 | |
| | | |
--+-- | | |
Gnd +-+-+ |
| |
| |
+-----+
|
|
--+--
Gnd

Dave M

Dave M wrote:
Dave M wrote:
John Robertson wrote:
On 2017/08/26 7:52 PM, Dave M wrote:
John Robertson wrote:
I am replacing an old TRIAC that is used for a solenoid driver
driven by a photo-flash (I have dozens of these in my classic
rifle gallery) and I can't find anything on line about this
particular device. I know it is 400V, 3A, and is in a TO-11 like
metal can however what I can't find is the Gate current. This is
a sensitive gate TRIAC and I suspect it is either a 3MA or a 10MA
device, but would like a copy of the original TECCOR specs to be
sure that the replacement I am using is close enough to the
original for long
term reliability. This is being controlled by a device called a
Vactrol - VTL2C3, and I have several dozen of these controllers
that eventually need upgrading. So, if anyone has a TECCOR
Electronics Inc. manual lying around from
the early 70s and can scan me the page(s) on the Q4003M3 that
would
be great. I have found sheets online for other flavours of the
Q4003 series, but just not the Mx version.

Thanks!

John :-#)#


I just need to sit down and spend a couple of hours on this project.

Thanks,

John :-#)#


Seems like a triggered one-shot 555 timer circuit would be a natural
solution to this problem. Circuit values are easily calculated for
the required delay, and the 555 can drive the triac directly or
through an optocoupler.

What's the normal ON time for the existing circuit? Do you use only
the photocell input or in conjunction with the reed switch input?

Dave M

This is a basic circuit for a 555 monostable. Circuit values easily
determined from one-shot requirements.




Oopsie!!
Got the 555 output connected the wrong way to the opto driver. Here's the way it should be:

Please view in a fixed-width font such as Courier.

+Vcc
|
|
|
+---------+---------------+----------------+
| | | |
| | | +-+-+
+-+-+ +-+-+ | | |
| | | | | | | AC
| | | | | |R4 | +--
|R1 | | | | | | |
| | |R2 | | | | |
| | | | +----+ +-+-+ +--------+ +---+
| | | | | | | | | | |
+-+-+ +-+-+ +----+----+---+ +---+ +--+ |MT1
| | | 4 8 | | | +-+-+
| | | | | Opto | | |
+---------------+2 | | Triac | | |
| | | | | Driver | | |Triac
| | | | | | | |
| | | | +--+ +----+G |
| | | | | | | +-+-+
+-+-+ +-----+6 | | +--------+ |MT2
| | | | NE555 | | MOC3022 |
| | | | | | |
| |Photo +-----+7 | | |
| |Cell | | | +----+ +--
| | | | | |C Load
+-+-+ | | | /
| +-+-+ | | +-------+ B |/
| | | | 3+--+ R3 +----+ 2N3904
--+-- | | | 5 1 | +-------+ |\
Gnd |C1 | +----+-----+--+ \
| | | | |E
| | +-+-+ | |
+-+-+ | | | --+--
| |C2 | | Gnd
| | | |
--+-- | | |
Gnd +-+-+ |
| |
| |
+-----+
|
|
--+--
Gnd


Dave M

On 2017/08/27 1:03 PM, Dave M wrote:
John Robertson wrote:
On 2017/08/26 7:52 PM, Dave M wrote:
John Robertson wrote:
I am replacing an old TRIAC that is used for a solenoid driver
driven by a photo-flash (I have dozens of these in my classic rifle
gallery) and I can't find anything on line about this particular
device. I know it is 400V, 3A, and is in a TO-11 like metal can however
what I can't find is the Gate current. This is a sensitive gate
TRIAC and I suspect it is either a 3MA or a 10MA device, but would
like a copy of the original TECCOR specs to be sure that the
replacement I am using is close enough to the original for long
term reliability. This is being controlled by a device called a
Vactrol - VTL2C3, and I have several dozen of these controllers
that eventually need upgrading. So, if anyone has a TECCOR Electronics
Inc. manual lying around from
the early 70s and can scan me the page(s) on the Q4003M3 that would
be great. I have found sheets online for other flavours of the Q4003
series, but just not the Mx version.

Thanks!

John :-#)#


The Teccor triac part numbering scheme says that the "M" is for a
non-isolated TO-218 package. You could just substitute another
package type such as the "F" or "R" package and get the same triac
in a slightly different package.
Looks like the "M" package was discontinued for triacs years ago,

Dave M



Yes, I have tried already a few other sensitive gate TRIACs (2N6073 is
close) in place of this one, but none seem to work the same way even
when they appear to have similar ratings. The TRIAC is controlled by a
LED/Photo-resistor (Vactrol) instead of a LED/Opto DIAC or similar.
Appears to be using Quadrant II control where the Vactrol enables the
TRIAC via a 12K resistor to M1 where M2 is connected to the load. M1
is tied to the power return/neutral (white) side of the 115VAC power.
Here is the PDF circuit:

http://www.flippers.com/pdfs/Vactrol...lled_TRIAC.pdf

I have tried subbing a MOC3020 LED-OptoTriac but that didn't work
reliably. Basically this circuit works by a CDS cell on the input that
reacts to a photoflash strobe in my rifles at the gallery. Problem is
this is 1970s tech and they are gradually failing. Recapping helped,
but now the opto-couplers are breaking down and my transistor theory
is too weak to change this one-shot monostable timer output to trigger
something more up to date in TRIAC drivers.

I just need to sit down and spend a couple of hours on this project.

Thanks,

John :-#)#


Seems like a triggered one-shot 555 timer circuit would be a natural
solution to this problem. Circuit values are easily calculated for the
required delay, and the 555 can drive the triac directly or through an
optocoupler.

What's the normal ON time for the existing circuit? Do you use only the
photocell input or in conjunction with the reed switch input?

Dave M



Hi Dave,

Yes, a 555 timer would be a more reliable timer for a replacement
circuit. The time is anywhere from 1 to five seconds depending on the
operation required, which is easy with the 555. And yes, turning the
TRIAC on/off rapidly with a reed switch is sometimes needed.

Not sure if the 555 can be reliably triggered via a CDS cell using a
strobe flash when there are varying light levels - day/night, and flood
lamps - which is the current situation.

Easy enough to test though I may just give up and go with some sort of
Arduino replacement system where I can have several devices run by a few
Arduinos (I have 60 of these boxes you see) and this would reduce or
eliminate false positives that I get when there is a bright flash that
lights up the entire area - right now everything fires off if someone
takes a flash photo with a camera, but are not set off with a flash
photo using a cell phone - LED flashes don't effect CDS cells much it seems.

Thanks,

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."