WL-7171 ignitron data sheet?

[Winfield Hill]

Does anyone know where I can find a
data sheet for a WL-7171 ignitron?

Thanks,
- Win

whill_at_picovolt-dot-com

 

[John Popelish]

Winfield Hill wrote:

Does anyone know where I can find a
data sheet for a WL-7171 ignitron?

There is another person who was looking for a data sheet on the
GL-7171 (similar, perhaps) since Jan 2002.

(3/4 down on:
http://www.tubecollectors.org/wanted.htm

Perhaps it would be worth an EMAIL to him to find out if he ever got
it.

--
John Popelish

 

[Winfield Hill]

John Popelish wrote...

Winfield Hill wrote:

Does anyone know where I can find a data
sheet for a WL-7171 ignitron?

There is another person who was looking for a data
sheet on the GL-7171 (similar, perhaps) since Jan 2002.

3/4 down on: http://www.tubecollectors.org/wanted.htm

Yes, I saw that one in my earlier Google search.
I took your suggestion and sent him an email.

Thanks,
- Win

whill_at_picovolt-dot-com

 

[James Meyer]

On 9 Dec 2003 08:44:38 -0800, Winfield Hill <Winfield_member@newsguy.com>
wroth:

Does anyone know where I can find a
data sheet for a WL-7171 ignitron?

Thanks,
- Win

whill_at_picovolt-dot-com

No. But I DO have 5 brand new 6012 thyratron tubes and I think I can
find the data sheets for them if that would do you any good.

Jim

 

[Winfield Hill]

James Meyer wrote...

Winfield Hill wroth:

Does anyone know where I can find a
data sheet for a WL-7171 ignitron?

No. But I DO have 5 brand new 6012 thyratron tubes and I think
I can find the data sheets for them if that would do you any good.

Thanks, Jim. Aren't thyratrons quite different from ignitrons?

John Popelish's suggestion that I contact Bob Weiss N2IXK via his
tubecollectors.org listing worked out well, and he's sending me a
copy of the datasheet. So I should be all set. Hmm, do you want
to compare datasheets?

Thanks,
- Win

whill_at_picovolt-dot-com

 

[James Meyer]

On 9 Dec 2003 18:51:14 -0800, Winfield Hill <Winfield_member@newsguy.com>
wroth:

James Meyer wrote...

Winfield Hill wroth:

Does anyone know where I can find a
data sheet for a WL-7171 ignitron?

No. But I DO have 5 brand new 6012 thyratron tubes and I think
I can find the data sheets for them if that would do you any good.

Thanks, Jim. Aren't thyratrons quite different from ignitrons?

John Popelish's suggestion that I contact Bob Weiss N2IXK via his
tubecollectors.org listing worked out well, and he's sending me a
copy of the datasheet. So I should be all set. Hmm, do you want
to compare datasheets?

Thanks,
- Win

whill_at_picovolt-dot-com

They're both gas filled "vacuum" tubes. They both resemble SCR's in
their operation and applications. The major difference is probably current and
stand-off voltage rating and overall dissipation capability.

Jim

 

[Chuck Simmons]

James Meyer wrote:

On 9 Dec 2003 18:51:14 -0800, Winfield Hill <Winfield_member@newsguy.com
wroth:

James Meyer wrote...

Winfield Hill wroth:

Does anyone know where I can find a
data sheet for a WL-7171 ignitron?

No. But I DO have 5 brand new 6012 thyratron tubes and I think
I can find the data sheets for them if that would do you any good.

Thanks, Jim. Aren't thyratrons quite different from ignitrons?

John Popelish's suggestion that I contact Bob Weiss N2IXK via his
tubecollectors.org listing worked out well, and he's sending me a
copy of the datasheet. So I should be all set. Hmm, do you want
to compare datasheets?

Thanks,
- Win

whill_at_picovolt-dot-com

They're both gas filled "vacuum" tubes. They both resemble SCR's in
their operation and applications. The major difference is probably current and
stand-off voltage rating and overall dissipation capability.

Jim

Not quite. Thyratrons are grid controlled. Ignitrons have an "igniter"
that touches a pool of mercury in the bottom of the tube. The igniter
can take considerable current to "fire."

Chuck

--
... The times have been,
That, when the brains were out,
the man would die. ... Macbeth
Chuck Simmons chrlsim@earthlink.net

 

[no_one]

That's right; the mercury ignitron can handle quite a bit of current. We
used them as the switch to dump 30,000 joules of energy from a capacitor
bank into a laser flash lamp about 20 years ago. Unfortunately I don't have
any data sheets.


"James Meyer" <jmeyer@nowhere.com> wrote in message
news:8b6etvsso6gino61voipocbsjd04ult9lq@4ax.com...

On 9 Dec 2003 18:51:14 -0800, Winfield Hill <Winfield_member@newsguy.com
wroth:

James Meyer wrote...

Winfield Hill wroth:

Does anyone know where I can find a
data sheet for a WL-7171 ignitron?

No. But I DO have 5 brand new 6012 thyratron tubes and I think
I can find the data sheets for them if that would do you any good.

Thanks, Jim. Aren't thyratrons quite different from ignitrons?

John Popelish's suggestion that I contact Bob Weiss N2IXK via his
tubecollectors.org listing worked out well, and he's sending me a
copy of the datasheet. So I should be all set. Hmm, do you want
to compare datasheets?

Thanks,
- Win

whill_at_picovolt-dot-com

They're both gas filled "vacuum" tubes. They both resemble SCR's in
their operation and applications. The major difference is probably
current and
stand-off voltage rating and overall dissipation capability.

Jim

 

[Jim Adney]

On 9 Dec 2003 08:44:38 -0800 Winfield Hill
<Winfield_member@newsguy.com> wrote:

Does anyone know where I can find a
data sheet for a WL-7171 ignitron?

There are Ignitron spec sheets on the Richardson Electronics web site.
Have you looked there? If they don't have it on line you may be able
to call them (ask for Norm Sch...) and see if he can provide it.

BTW, I's surprised to find that there are still others out there also
using Ignitrons. Right now I have an Ignitron dilemma. This seems like
a good time to ask about it.

I have ignitrons in a circuit that rings. There is a large reverse
diode around each Ignitron, but I need to do something to keep this
Ignitron forward conducting every time it is forward biased for about
70 mSec after it is triggered. These Ignitrons don't have hold
electrodes, so all I can do is use the trigger electrode.

I'd really like to keep a hold current flowing in the trigger for 70
mSec if that would do it, but opinions here are that this won't do
anything.

I have about 15 of these that I need to come up with a solution for,
and it has to be relatively inexpensive, say less than $5000 for all
15. I could use a precharged capacitor and a number of diodes around
the Ignitron to keep forward current flowing in it all the time once
triggered, but the high voltage/high current diode stacks would cost
tens of thousands of dollars.

Anyone ever solved a problem like this?

-
-----------------------------------------------
Jim Adney jadney@vwtype3.org
Madison, WI 53711 USA
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