On Nov 8, 5:14=A0pm, Bill Sloman <bill.slo...@ieee.org> wrote:
> On Nov 8, 4:26 pm, George Herold <gher...@teachspin.com> wrote:
>
>
>
>
>
> > On Nov 8, 4:27 am,BillSloman<bill.slo...@ieee.org> wrote:
>
> > > On Nov 8, 12:56 am, Klaus Kragelund <klausk...@hotmail.com> wrote:
>
> > > > Hi
>
> > > > I am looking for the original paper from 1954 that George Royer did=
on
> > > > his Royer converter circuit:
>
> > > > "Transistors as on-off switches in saturable-core circuits" in
> > > > Electrical Manufactoring
>
> > > > Anyone know where I can get this?
>
> > > Jim Williams did. From his AN-55
>
> > >http://cds.linear.com/docs/Application%20Note/an55fa.pdf
>
> > > Bright, Pittman and Royer, =93Transistors as On-Off
> > > Switches in Saturable Core Circuits,=94 Electrical
> > > Manufacturing, December 1954. Available from
> > > Technomic Publishing, Lancaster, PA.
>
> > Bill, didn't you (or someone else) have a copy of this paper? =A0I thin=
k
> > someone sent me a pdf via email (upon request).
> > I can't seem to 'unearth' it at the moment... about time to do a desk
> > cleaning/ filing.
>
> The original Baxandall paper on sine-wave transistor inverters is on
> my web-site
>
> > I've finally got around to making a .pdf of Peter Baxanadall's 1959
> > paper on Transistor Sine-Wave LC oscillators - Baxandall, P.J, Proc
> > I.E.E 106, B, 748 (1959) - available on my web-site at
>
> >http://home.planet.nl/~sloma000/0344_001_Baxandal.pdf
>
> but it was published five years later than the Royer paper, which
> concerns itself with square-wave inverters, and didn't much impress me
> when I read it, back in 1970.
>
> --
> Bill Sloman, Nijmegen- Hide quoted text -
>
> - Show quoted text -
Thanks, That's was I was thinking about.
George H.
Reply by Joerg●November 8, 20112011-11-08
Klaus Kragelund wrote:
> On 8 Nov., 10:27, Bill Sloman <bill.slo...@ieee.org> wrote:
>> On Nov 8, 12:56 am, Klaus Kragelund <klausk...@hotmail.com> wrote:
>>
>>> Hi
>>> I am looking for the original paper from 1954 that George Royer did on
>>> his Royer converter circuit:
>>> "Transistors as on-off switches in saturable-core circuits" in
>>> Electrical Manufactoring
>>> Anyone know where I can get this?
>> Jim Williams did. From his AN-55
>>
>> http://cds.linear.com/docs/Application%20Note/an55fa.pdf
>>
>> Bright, Pittman and Royer, �Transistors as On-Off
>> Switches in Saturable Core Circuits,� Electrical
>> Manufacturing, December 1954. Available from
>> Technomic Publishing, Lancaster, PA.
>>
>
> Thanks. I was hoping for a link on the internet, getting this from the
> overseas source is through my local library and may end up to be a
> hurdle :-)
>
If you are signed up with the local university library or know someone
who is, they can often get you a copy much faster than a city library.
Some of the really old stuff is only on microfiche but the copy fees are
usually modest.
--
Regards, Joerg
http://www.analogconsultants.com/
Reply by Bill Sloman●November 8, 20112011-11-08
On Nov 8, 4:26 pm, George Herold <gher...@teachspin.com> wrote:
> On Nov 8, 4:27 am,BillSloman<bill.slo...@ieee.org> wrote:
>
> > On Nov 8, 12:56 am, Klaus Kragelund <klausk...@hotmail.com> wrote:
>
> > > Hi
>
> > > I am looking for the original paper from 1954 that George Royer did o=
n
> > > his Royer converter circuit:
>
> > > "Transistors as on-off switches in saturable-core circuits" in
> > > Electrical Manufactoring
>
> > > Anyone know where I can get this?
>
> > Jim Williams did. From his AN-55
>
> >http://cds.linear.com/docs/Application%20Note/an55fa.pdf
>
> > Bright, Pittman and Royer, =93Transistors as On-Off
> > Switches in Saturable Core Circuits,=94 Electrical
> > Manufacturing, December 1954. Available from
> > Technomic Publishing, Lancaster, PA.
>
> Bill, didn't you (or someone else) have a copy of this paper? I think
> someone sent me a pdf via email (upon request).
> I can't seem to 'unearth' it at the moment... about time to do a desk
> cleaning/ filing.
The original Baxandall paper on sine-wave transistor inverters is on
my web-site
> I've finally got around to making a .pdf of Peter Baxanadall's 1959
> paper on Transistor Sine-Wave LC oscillators - Baxandall, P.J, Proc
> I.E.E 106, B, 748 (1959) - available on my web-site at
>
> http://home.planet.nl/~sloma000/0344_001_Baxandal.pdf
but it was published five years later than the Royer paper, which
concerns itself with square-wave inverters, and didn't much impress me
when I read it, back in 1970.
--
Bill Sloman, Nijmegen
Reply by Klaus Kragelund●November 8, 20112011-11-08
On 8 Nov., 10:27, Bill Sloman <bill.slo...@ieee.org> wrote:
> On Nov 8, 12:56=A0am, Klaus Kragelund <klausk...@hotmail.com> wrote:
>
> > Hi
>
> > I am looking for the original paper from 1954 that George Royer did on
> > his Royer converter circuit:
>
> > "Transistors as on-off switches in saturable-core circuits" in
> > Electrical Manufactoring
>
> > Anyone know where I can get this?
>
> Jim Williams did. From his AN-55
>
> http://cds.linear.com/docs/Application%20Note/an55fa.pdf
>
> Bright, Pittman and Royer, =93Transistors as On-Off
> Switches in Saturable Core Circuits,=94 Electrical
> Manufacturing, December 1954. Available from
> Technomic Publishing, Lancaster, PA.
>
Thanks. I was hoping for a link on the internet, getting this from the
overseas source is through my local library and may end up to be a
hurdle :-)
Regards
Klaus
Reply by George Herold●November 8, 20112011-11-08
On Nov 8, 4:27=A0am, Bill Sloman <bill.slo...@ieee.org> wrote:
> On Nov 8, 12:56=A0am, Klaus Kragelund <klausk...@hotmail.com> wrote:
>
> > Hi
>
> > I am looking for the original paper from 1954 that George Royer did on
> > his Royer converter circuit:
>
> > "Transistors as on-off switches in saturable-core circuits" in
> > Electrical Manufactoring
>
> > Anyone know where I can get this?
>
> Jim Williams did. From his AN-55
>
> http://cds.linear.com/docs/Application%20Note/an55fa.pdf
>
> Bright, Pittman and Royer, =93Transistors as On-Off
> Switches in Saturable Core Circuits,=94 Electrical
> Manufacturing, December 1954. Available from
> Technomic Publishing, Lancaster, PA.
>
> --
> Bill Sloman, Nijmegen
Bill, didn't you (or someone else) have a copy of this paper? I think
someone sent me a pdf via email (upon request).
I can't seem to 'unearth' it at the moment... about time to do a desk
cleaning/ filing.
George H.
Reply by Jim Thompson●November 8, 20112011-11-08
On Mon, 07 Nov 2011 22:15:38 -0500, Spehro Pefhany
<speffSNIP@interlogDOTyou.knowwhat> wrote:
>On Mon, 07 Nov 2011 17:37:42 -0700, the renowned Jim Thompson
><To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>
>>On Mon, 07 Nov 2011 19:10:40 -0500, Spehro Pefhany
>><speffSNIP@interlogDOTyou.knowwhat> wrote:
>>
>>>On Mon, 07 Nov 2011 16:59:51 -0700, the renowned Jim Thompson
>>><To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>>
>>>>On Mon, 7 Nov 2011 15:56:24 -0800 (PST), Klaus Kragelund
>>>><klauskvik@hotmail.com> wrote:
>>>>
>>>>>Hi
>>>>>
>>>>>I am looking for the original paper from 1954 that George Royer did on
>>>>>his Royer converter circuit:
>>>>>
>>>>>"Transistors as on-off switches in saturable-core circuits" in
>>>>>Electrical Manufactoring
>>>>>
>>>>>Anyone know where I can get this?
>>>>>
>>>>>Regards
>>>>>
>>>>>Klaus
>>>>
>>>>1954? There weren't a lot of transistors around in 1954... only
>>>>Geranium junk, surface-barrier and point contact ;-)
>>>>
>>>> ...Jim Thompson
>>>
>>>Royer used the Westinghouse 2N74, apparently.
>>>
>>>
>>>Best regards,
>>>Spehro Pefhany
>>
>>Trying to remember... one of those pinch-seal TO-5's? I used to have
>>an ancient GE manual, but the silverfish ate it :-(
>>
>> ...Jim Thompson
>
>It's before my time, Jim. I don't have anything listed that has fewer
>than 3 digits after the '2N'.
>
>Here's a photo of one:
>http://homepages.nildram.co.uk/~wylie/2Nseries/2N74.jpg
My! My! I never saw one of those. (But I was only 14 at the time ;-)
My first transistors were CK722 and CK760 in 1956, when my father
became a Raytheon wholesaler.
...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Reply by Bill Sloman●November 8, 20112011-11-08
On Nov 8, 12:56=A0am, Klaus Kragelund <klausk...@hotmail.com> wrote:
> Hi
>
> I am looking for the original paper from 1954 that George Royer did on
> his Royer converter circuit:
>
> "Transistors as on-off switches in saturable-core circuits" in
> Electrical Manufactoring
>
> Anyone know where I can get this?
Jim Williams did. From his AN-55
http://cds.linear.com/docs/Application%20Note/an55fa.pdf
Bright, Pittman and Royer, =93Transistors as On-Off
Switches in Saturable Core Circuits,=94 Electrical
Manufacturing, December 1954. Available from
Technomic Publishing, Lancaster, PA.
--
Bill Sloman, Nijmegen
Reply by Spehro Pefhany●November 7, 20112011-11-07
On Mon, 07 Nov 2011 17:37:42 -0700, the renowned Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>On Mon, 07 Nov 2011 19:10:40 -0500, Spehro Pefhany
><speffSNIP@interlogDOTyou.knowwhat> wrote:
>
>>On Mon, 07 Nov 2011 16:59:51 -0700, the renowned Jim Thompson
>><To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>
>>>On Mon, 7 Nov 2011 15:56:24 -0800 (PST), Klaus Kragelund
>>><klauskvik@hotmail.com> wrote:
>>>
>>>>Hi
>>>>
>>>>I am looking for the original paper from 1954 that George Royer did on
>>>>his Royer converter circuit:
>>>>
>>>>"Transistors as on-off switches in saturable-core circuits" in
>>>>Electrical Manufactoring
>>>>
>>>>Anyone know where I can get this?
>>>>
>>>>Regards
>>>>
>>>>Klaus
>>>
>>>1954? There weren't a lot of transistors around in 1954... only
>>>Geranium junk, surface-barrier and point contact ;-)
>>>
>>> ...Jim Thompson
>>
>>Royer used the Westinghouse 2N74, apparently.
>>
>>
>>Best regards,
>>Spehro Pefhany
>
>Trying to remember... one of those pinch-seal TO-5's? I used to have
>an ancient GE manual, but the silverfish ate it :-(
>
> ...Jim Thompson
"Jim Thompson" <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote
in message news:54ugb7t4hhkhqd6lh9ssnnms8e8u7pbquv@4ax.com...
> On Mon, 07 Nov 2011 19:10:40 -0500, Spehro Pefhany
> <speffSNIP@interlogDOTyou.knowwhat> wrote:
>
>>On Mon, 07 Nov 2011 16:59:51 -0700, the renowned Jim Thompson
>><To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>
>>>On Mon, 7 Nov 2011 15:56:24 -0800 (PST), Klaus Kragelund
>>><klauskvik@hotmail.com> wrote:
>>>
>>>>Hi
>>>>
>>>>I am looking for the original paper from 1954 that George Royer did
>>>>on
>>>>his Royer converter circuit:
>>>>
>>>>"Transistors as on-off switches in saturable-core circuits" in
>>>>Electrical Manufactoring
>>>>
>>>>Anyone know where I can get this?
>>>>
>>>>Regards
>>>>
>>>>Klaus
>>>
>>>1954? There weren't a lot of transistors around in 1954... only
>>>Geranium junk, surface-barrier and point contact ;-)
>>>
>>> ...Jim Thompson
>>
>>Royer used the Westinghouse 2N74, apparently.
>>
>>
>>Best regards,
>>Spehro Pefhany
>
> Trying to remember... one of those pinch-seal TO-5's? I used to have
> an ancient GE manual, but the silverfish ate it :-(
>
> ...Jim Thompson
It's listed in the 1958 GE manual I have.
Cheers
Reply by VWWall●November 7, 20112011-11-07
Jim Thompson wrote:
> On Mon, 7 Nov 2011 15:56:24 -0800 (PST), Klaus Kragelund
> <klauskvik@hotmail.com> wrote:
>
>> Hi
>>
>> I am looking for the original paper from 1954 that George Royer did on
>> his Royer converter circuit:
>>
>> "Transistors as on-off switches in saturable-core circuits" in
>> Electrical Manufactoring
>>
>> Anyone know where I can get this?
>>
>> Regards
>>
>> Klaus
>
> 1954? There weren't a lot of transistors around in 1954... only
> Geranium junk, surface-barrier and point contact ;-)
>
> ...Jim Thompson
In 1951-1952, at North American, we built an entire solid-state airborne
radar. Only the magnetron was a vacuum tube, and it was pulsed by a
magnetic core pulse generator, on which I have a patent. The display
did use a standard CRT.
Most of the transistors were from Texas Instruments and were used in low
power RF and video circuits.
--
Virg Wall