>"The circuit that used the negative resistance/noninverting gainbehavior of pentodes was called the "phantastron". It was widely used in radar and scopes and timing circuits." I wish my Uncle was alive so I could ask about that. He used to work on RADAR in the air force. Electronics was his MOS (?) and later he was a tech specialist with IBM.
Negative resistance with BJTs
Started by ●August 22, 2018
Reply by ●August 24, 20182018-08-24
Reply by ●August 24, 20182018-08-24
On Friday, August 24, 2018 at 6:42:13 PM UTC-4, Tom Del Rosso wrote:> George Herold wrote: > > > > Hey speaking of trouble shooting, I found a new one (for me) > > today. 74HC14 was being powered by it's input pulses. > > (I forgot to hook up the 5V rail.) > > That's in every edition of AoE!Well there you go, I don't learn something unless I step in it. No matter how many times you tell me. George H.
Reply by ●August 24, 20182018-08-24
On Fri, 24 Aug 2018 18:47:59 -0400, "Tom Del Rosso" <fizzbintuesday@that-google-mail-domain.com> wrote:>Phil Hobbs wrote: >> >> "Troubleshooting Analog Circuits", i.e. the good one. His other two >> are junk--I bought "Analog Circuits (World Class Designs)" and >> chucked it out within a day or two, and his book on driving "How to >> drive into accidents and how not to" is a turgid mess. Ironically >> Pease died by crashing a horribly unsafe car (a '69 Beetle) into a >> tree on the way to Jim Williams's wake. :( > >I gave that book to a non-driver as a gift. I never had the heart to >tell her... > >IIRC it was after he left the wake. > >Wasn't he assumed to have had a heart attack since no other cars were >involved?Drunk as a skunk.
Reply by ●August 24, 20182018-08-24
jurb6006@gmail.com wrote:>> "The circuit that used the negative resistance/noninverting gain > behavior of pentodes was called the "phantastron". It was widely used > in radar and scopes and timing circuits." > > I wish my Uncle was alive so I could ask about that. He used to work > on RADAR in the air force. Electronics was his MOS (?) and later he > was a tech specialist with IBM.I believe MOS is the correct term for Military Occupational Specialty.
Reply by ●August 25, 20182018-08-25
On 08/24/2018 06:47 PM, Tom Del Rosso wrote:> Phil Hobbs wrote: >> >> "Troubleshooting Analog Circuits", i.e. the good one. His other two >> are junk--I bought "Analog Circuits (World Class Designs)" and >> chucked it out within a day or two, and his book on driving "How to >> drive into accidents and how not to" is a turgid mess. Ironically >> Pease died by crashing a horribly unsafe car (a '69 Beetle) into a >> tree on the way to Jim Williams's wake. :( > > I gave that book to a non-driver as a gift. I never had the heart to > tell her... > > IIRC it was after he left the wake. > > Wasn't he assumed to have had a heart attack since no other cars were > involved?Could be. Lots of folks survive heart attacks, though. 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
Reply by ●August 25, 20182018-08-25
Phil Hobbs wrote:> On 08/24/2018 06:47 PM, Tom Del Rosso wrote: >> >> Wasn't he assumed to have had a heart attack since no other cars were >> involved? > > Could be. Lots of folks survive heart attacks, though.Sure but you can't help it if it comes while you're driving. I knew a guy who died that way, who might have survived if it happened in the office.
Reply by ●August 25, 20182018-08-25
In article <a491od9bv51j0j20o714jmm9aoojdk9ou5@4ax.com>, <krw@notreal.com> wrote:>On Fri, 24 Aug 2018 18:47:59 -0400, "Tom Del Rosso">>IIRC it was after he left the wake. >> >>Wasn't he assumed to have had a heart attack since no other cars were >>involved? > >Drunk as a skunk.And you know this, how? None of the articles I've ever seen, or have been able to find, identified the cause of the accident. Some reports said the CHP was investigating but I have been unable to find any public report on their actual findings. It appears that in California, one must be an "interested party" in the legal sense to be able to receive a copy of a police report concerning an accident. So, krw, are you speaking from direct knowledge, some authoritative reference that others can see, rumor, or personal opinion?
Reply by ●August 25, 20182018-08-25
On 08/25/2018 09:38 AM, Tom Del Rosso wrote:> Phil Hobbs wrote: >> On 08/24/2018 06:47 PM, Tom Del Rosso wrote: >>> >>> Wasn't he assumed to have had a heart attack since no other cars were >>> involved? >> >> Could be. Lots of folks survive heart attacks, though. > > Sure but you can't help it if it comes while you're driving. I knew a > guy who died that way, who might have survived if it happened in the > office.Or in a car with air bags, crumple zones, and a rigid passenger compartment--IOW anything made in the previous 15 years or so. The old Beetle was a deathtrap. 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
Reply by ●August 25, 20182018-08-25
Phil Hobbs wrote:> On 08/25/2018 09:38 AM, Tom Del Rosso wrote: >> Phil Hobbs wrote: >>> On 08/24/2018 06:47 PM, Tom Del Rosso wrote: >>>> >>>> Wasn't he assumed to have had a heart attack since no other cars >>>> were involved? >>> >>> Could be. Lots of folks survive heart attacks, though. >> >> Sure but you can't help it if it comes while you're driving. I knew >> a guy who died that way, who might have survived if it happened in >> the office. > > > Or in a car with air bags, crumple zones, and a rigid passenger > compartment--IOW anything made in the previous 15 years or so. The > old Beetle was a deathtrap.The guy I knew had a new car. But in any case it doesn't mean Pease wasn't qualified to write a book on driving. He was just too much in love with that car.
Reply by ●August 25, 20182018-08-25
On Sat, 25 Aug 2018 07:01:42 -0700, dplatt@coop.radagast.org (Dave Platt) wrote:>In article <a491od9bv51j0j20o714jmm9aoojdk9ou5@4ax.com>, > <krw@notreal.com> wrote: >>On Fri, 24 Aug 2018 18:47:59 -0400, "Tom Del Rosso" > >>>IIRC it was after he left the wake. >>> >>>Wasn't he assumed to have had a heart attack since no other cars were >>>involved? >> >>Drunk as a skunk. > >And you know this, how?People in the know. He was a well known drunk.> >None of the articles I've ever seen, or have been able to find, >identified the cause of the accident. Some reports said the CHP was >investigating but I have been unable to find any public report on >their actual findings. It appears that in California, one must be an >"interested party" in the legal sense to be able to receive a copy of >a police report concerning an accident. > >So, krw, are you speaking from direct knowledge, some authoritative >reference that others can see, rumor, or personal opinion?
