gray_wolf wrote: =================> > >> > >> Good question! I'm wondering what the OP would do if he knew all > >> about tubes? Build a HiFi amp? Guitar amp? > >> > > Good question, yes. > > So far the OP hasn't made clear what he wants to do. In the > > absence of such clarification, > > > The thought just occurred that to me that perhaps he has no electronic > experience at all >** David Eather is regular, long time poster. The likely scenario is that his Q was posted in order to advise another somewhere on the www. So he cannot supply the actual need or context and has not responded to folk here. If posters do that sort of thing - I wish they would fucking well say so. ..... Phil
Is there a good book for learning about valves/tubes?
Started by ●August 9, 2020
Reply by ●August 12, 20202020-08-12
Reply by ●August 13, 20202020-08-13
On 8/13/2020 1:20 AM, John Larkin wrote:> On Wed, 12 Aug 2020 21:15:52 +0300, Tauno Voipio > <tauno.voipio@notused.fi.invalid> wrote: > >> On 10.8.20 0.06, david eather wrote: >>> suggestions please >>> TIA >> >> For transmitting use: The Care and Feeding of Power Grid Tubes, >> by Eimac, if you can get hold of one. (I'll keep mine). > > Has anyone mentioned the RCA receiving and transmitting tube manuals? > > They had a good PMT manual too. >I posted that somewhere up above in the thread. The RCA tube and transistor manuals were among my first books on electronics.
Reply by ●August 13, 20202020-08-13
On Tuesday, August 11, 2020 at 4:39:27 AM UTC-7, Tim Williams wrote:> "Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message > news:rgsipb$17mk$1@gioia.aioe.org... > > EMP-proof serial computer, definitely. ;) > > Y'know, I wonder what kind of performance one of those could do, given > modern architectural and electronic knowledge. > > A clock frequency somewhat under a MHz seems reasonable...Oh, gigahertz makes just as much sense, with Nuvistor technology and some 3D printing of electrodes. Some of the old serial-CPU gizmos with delay lines were relatively capable (HP 9100A comes to mind) and a delay-line memory is wonderfully parts-count minimal. <https://en.wikipedia.org/wiki/Hewlett-Packard_9100A>
Reply by ●August 13, 20202020-08-13
On 2020-08-12 21:52, Michael Terrell wrote:> On Wednesday, August 12, 2020 at 2:15:56 PM UTC-4, Tauno Voipio > wrote: >> On 10.8.20 0.06, david eather wrote: >>> suggestions please TIA >> >> For transmitting use: The Care and Feeding of Power Grid Tubes, by >> Eimac, if you can get hold of one. (I'll keep mine). > > > I'd like to see the datasheets on the EEV Klystrons that were used in > a Comark UHF TV transmitter that I maintained. 65KW output, per tube. > It's bee over 30 years, so I don't remember their type number. It was > the last Comark built with Klystrons. The next transmitter used > Klystrodes, instead. Higher efficiency, less cooling required and > lower electric bills. >I didn't know about Klystrodes--pretty cool devices actually. 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 13, 20202020-08-13
On 13/08/20 08:14, whit3rd wrote:> On Tuesday, August 11, 2020 at 4:39:27 AM UTC-7, Tim Williams wrote: >> "Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message >> news:rgsipb$17mk$1@gioia.aioe.org... >>> EMP-proof serial computer, definitely. ;) >> >> Y'know, I wonder what kind of performance one of those could do, given >> modern architectural and electronic knowledge. >> >> A clock frequency somewhat under a MHz seems reasonable... > > > Oh, gigahertz makes just as much sense, with Nuvistor technology and some 3D > printing of electrodes. Some of the old serial-CPU gizmos with delay lines > were relatively capable (HP 9100A comes to mind) and a delay-line memory > is wonderfully parts-count minimal. > > <https://en.wikipedia.org/wiki/Hewlett-Packard_9100A> >If you want to minimise active devices, you could copy the old techniques of using magnetic components in logic gates. http://www.cs.man.ac.uk/CCS/res/res03.htm#e I'm sure Peter Onion would be only too happy to discuss in detail. The full schematics are available at TNMoC
Reply by ●August 13, 20202020-08-13
On Thu, 13 Aug 2020 00:14:01 -0700 (PDT), whit3rd <whit3rd@gmail.com> wrote:>On Tuesday, August 11, 2020 at 4:39:27 AM UTC-7, Tim Williams wrote: >> "Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message >> news:rgsipb$17mk$1@gioia.aioe.org... >> > EMP-proof serial computer, definitely. ;) >> >> Y'know, I wonder what kind of performance one of those could do, given >> modern architectural and electronic knowledge. >> >> A clock frequency somewhat under a MHz seems reasonable... > > >Oh, gigahertz makes just as much sense, with Nuvistor technology and some 3D >printing of electrodes. Some of the old serial-CPU gizmos with delay lines >were relatively capable (HP 9100A comes to mind) and a delay-line memory >is wonderfully parts-count minimal. > > <https://en.wikipedia.org/wiki/Hewlett-Packard_9100A>There are no delay lines in a 9100. Memory includes core, PCB inductive ROM, and diode ROM. -- John Larkin Highland Technology, Inc Science teaches us to doubt. Claude Bernard
Reply by ●August 13, 20202020-08-13
On 13.8.20 11.41, Tom Gardner wrote:> On 13/08/20 08:14, whit3rd wrote: >> On Tuesday, August 11, 2020 at 4:39:27 AM UTC-7, Tim Williams wrote: >>> "Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message >>> news:rgsipb$17mk$1@gioia.aioe.org... >>>> EMP-proof serial computer, definitely. ;) >>> >>> Y'know, I wonder what kind of performance one of those could do, given >>> modern architectural and electronic knowledge. >>> >>> A clock frequency somewhat under a MHz seems reasonable... >> >> >> Oh, gigahertz makes just as much sense, with Nuvistor technology and >> some 3D >> printing of electrodes. Some of the old serial-CPU gizmos with delay >> lines >> were relatively capable (HP 9100A comes to mind) and a delay-line >> memory >> is wonderfully parts-count minimal. >> >> <https://en.wikipedia.org/wiki/Hewlett-Packard_9100A> >> > > If you want to minimise active devices, you could copy > the old techniques of using magnetic components in logic > gates. > > http://www.cs.man.ac.uk/CCS/res/res03.htm#e > > I'm sure Peter Onion would be only too happy to discuss > in detail. The full schematics are available at TNMoCThe Ellie in your reference used delay lines in registers, with weird bit time lengths. They were the main reason why the machine was very fussy on the three-phase clock frequency. -- -TV (Ellie = Elliott 803)
Reply by ●August 13, 20202020-08-13
On 13/08/20 16:57, Tauno Voipio wrote:> On 13.8.20 11.41, Tom Gardner wrote: >> On 13/08/20 08:14, whit3rd wrote: >>> On Tuesday, August 11, 2020 at 4:39:27 AM UTC-7, Tim Williams wrote: >>>> "Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message >>>> news:rgsipb$17mk$1@gioia.aioe.org... >>>>> EMP-proof serial computer, definitely. ;) >>>> >>>> Y'know, I wonder what kind of performance one of those could do, given >>>> modern architectural and electronic knowledge. >>>> >>>> A clock frequency somewhat under a MHz seems reasonable... >>> >>> >>> Oh, gigahertz makes just as much sense, with Nuvistor technology and some 3D >>> printing of electrodes. Some of the old serial-CPU gizmos with delay lines >>> were relatively capable (HP 9100A comes to mind) and a delay-line memory >>> is wonderfully parts-count minimal. >>> >>> <https://en.wikipedia.org/wiki/Hewlett-Packard_9100A> >>> >> >> If you want to minimise active devices, you could copy >> the old techniques of using magnetic components in logic >> gates. >> >> http://www.cs.man.ac.uk/CCS/res/res03.htm#e >> >> I'm sure Peter Onion would be only too happy to discuss >> in detail. The full schematics are available at TNMoC > > > The Ellie in your reference used delay lines in registers, > with weird bit time lengths. They were the main reason why > the machine was very fussy on the three-phase clock frequency./Everything/ was weird back then :) Except, in the case of the 803 etc, Tony Hoare's Algol-60 compiler which was groundbreaking. It was still was weird in the 1970s microprocessors. Consider the RCA1802, the Motorola 14500, and what was that one without an external address bus?
Reply by ●August 13, 20202020-08-13
On 13.8.20 20.23, Tom Gardner wrote:> On 13/08/20 16:57, Tauno Voipio wrote: >> On 13.8.20 11.41, Tom Gardner wrote: >>> On 13/08/20 08:14, whit3rd wrote: >>>> On Tuesday, August 11, 2020 at 4:39:27 AM UTC-7, Tim Williams wrote: >>>>> "Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message >>>>> news:rgsipb$17mk$1@gioia.aioe.org... >>>>>> EMP-proof serial computer, definitely. ;) >>>>> >>>>> Y'know, I wonder what kind of performance one of those could do, given >>>>> modern architectural and electronic knowledge. >>>>> >>>>> A clock frequency somewhat under a MHz seems reasonable... >>>> >>>> >>>> Oh, gigahertz makes just as much sense, with Nuvistor technology and >>>> some 3D >>>> printing of electrodes. Some of the old serial-CPU gizmos with >>>> delay lines >>>> were relatively capable (HP 9100A comes to mind) and a delay-line >>>> memory >>>> is wonderfully parts-count minimal. >>>> >>>> <https://en.wikipedia.org/wiki/Hewlett-Packard_9100A> >>>> >>> >>> If you want to minimise active devices, you could copy >>> the old techniques of using magnetic components in logic >>> gates. >>> >>> http://www.cs.man.ac.uk/CCS/res/res03.htm#e >>> >>> I'm sure Peter Onion would be only too happy to discuss >>> in detail. The full schematics are available at TNMoC >> >> >> The Ellie in your reference used delay lines in registers, >> with weird bit time lengths. They were the main reason why >> the machine was very fussy on the three-phase clock frequency. > > /Everything/ was weird back then :) > > Except, in the case of the 803 etc, Tony Hoare's Algol-60 > compiler which was groundbreaking. > > It was still was weird in the 1970s microprocessors. Consider > the RCA1802, the Motorola 14500, and what was that one > without an external address bus?At least Intel 4004 and 4040. 3 power supplies and weird clocking. I agree on Hoare's Algol. It was a huge step forward from Autocode and direct octal code input. -- -TV
Reply by ●August 13, 20202020-08-13
On Thu, 13 Aug 2020 11:59:06 +0530, Pimpom <nobody@nowhere.com> wrote:>On 8/13/2020 1:20 AM, John Larkin wrote: >> On Wed, 12 Aug 2020 21:15:52 +0300, Tauno Voipio >> <tauno.voipio@notused.fi.invalid> wrote: >> >>> On 10.8.20 0.06, david eather wrote: >>>> suggestions please >>>> TIA >>> >>> For transmitting use: The Care and Feeding of Power Grid Tubes, >>> by Eimac, if you can get hold of one. (I'll keep mine). >> >> Has anyone mentioned the RCA receiving and transmitting tube manuals? >> >> They had a good PMT manual too. >> >I posted that somewhere up above in the thread. The RCA tube and >transistor manuals were among my first books on electronics.The GE Transistor and Tunnel Diode and SCR manuals were great too. I still have them.
