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Oldschool tubes

Started by bitrex November 9, 2017
On Friday, 10 November 2017 14:11:23 UTC, Phil Hobbs  wrote:
> On 11/10/2017 04:04 AM, Mike Coon wrote: > > In article <6Z6NB.1751$227.328@fx40.iad>, mike.terrell@earthlink.net > > says... > >> > >> bitrex wrote: > >> > > >>> Michael A Terrell wrote: > >> >> > >>>> bitrex wrote: > >> >>> > >>>>> Michael A Terrell wrote: > >>>>>> > >>>>>> A common as dirt filament tester. They were common as dirt, and > >>>>>> sold for about $3 in the early '60s. They hyped as real tube testers. > >>>>> > >>>>> "It Does What It Says on the Tin" > >>>> > >>>> Just like the cans of 'Replacement Vacuum'? > >>>> > >>> > >>> How do I get the vacuum out of the can and back in the tube, though? > >> > >> > >> That was explained on the tin, not in the ads. > > > > I like that idea. Did you have to wear a space-suit in case any vacuum > > got spilled? > > > > Mike. > > > > I still want my Acme Portable Hole. > > Cheers > > Phil Hobbs
apparently there are shops that sell that sort of thing
On 11/10/2017 09:11 AM, Phil Hobbs wrote:
> On 11/10/2017 04:04 AM, Mike Coon wrote: >> In article <6Z6NB.1751$227.328@fx40.iad>, mike.terrell@earthlink.net >> says... >>> >>> bitrex wrote: >>> > >>>> Michael A Terrell wrote: >>> >> >>>>> bitrex wrote: >>> >>> >>>>>> Michael A Terrell wrote: >>>>>>> >>>>>>> A common as dirt filament tester. They were common as dirt, and >>>>>>> sold for about $3 in the early '60s. They hyped as real tube testers. >>>>>> >>>>>> "It Does What It Says on the Tin" >>>>> >>>>> Just like the cans of 'Replacement Vacuum'? >>>>> >>>> >>>> How do I get the vacuum out of the can and back in the tube, though? >>> >>> >>> That was explained on the tin, not in the ads. >> >> I like that idea. Did you have to wear a space-suit in case any vacuum >> got spilled? >> >> Mike. >> > > I still want my Acme Portable Hole. > > Cheers > > Phil Hobbs >
What happens if you put a portable hole inside a portable hole?
On 11/10/2017 10:26 AM, tabbypurr@gmail.com wrote:
> On Friday, 10 November 2017 14:11:23 UTC, Phil Hobbs wrote: >> On 11/10/2017 04:04 AM, Mike Coon wrote: >>> In article <6Z6NB.1751$227.328@fx40.iad>, mike.terrell@earthlink.net >>> says... >>>> >>>> bitrex wrote: >>>> > >>>>> Michael A Terrell wrote: >>>> >> >>>>>> bitrex wrote: >>>> >>> >>>>>>> Michael A Terrell wrote: >>>>>>>> >>>>>>>> A common as dirt filament tester. They were common as dirt, and >>>>>>>> sold for about $3 in the early '60s. They hyped as real tube testers. >>>>>>> >>>>>>> "It Does What It Says on the Tin" >>>>>> >>>>>> Just like the cans of 'Replacement Vacuum'? >>>>>> >>>>> >>>>> How do I get the vacuum out of the can and back in the tube, though? >>>> >>>> >>>> That was explained on the tin, not in the ads. >>> >>> I like that idea. Did you have to wear a space-suit in case any vacuum >>> got spilled? >>> >>> Mike. >>> >> >> I still want my Acme Portable Hole. >> >> Cheers >> >> Phil Hobbs > > apparently there are shops that sell that sort of thing >
Hiyooooooo! Someone's had their coffee this morning
On Thursday, November 9, 2017 at 5:52:20 PM UTC-7, Jim Thompson wrote:
> On Thu, 9 Nov 2017 16:47:59 -0800 (PST), mpm <mpmillard@aol.com> > wrote: > > >I am just barely old enough to remember "tube testers" in some stores like Western Auto, ACE Hardware, etc... They were quickly becoming obsolete. > > > >On the other hand, I am old enough to remember (somewhat vividly) when the MOS Technology 6502 came out. > > I'm old enough to remember that, in my early teens, it was my > assignment in my father's TV repair shop to test all the tubes on sets > incoming for repair ;-) > > ...Jim Thompson > -- > | James E.Thompson | mens | > | Analog Innovations | et | > | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | > | STV, Queen Creek, AZ 85142 Skype: skypeanalog | | > | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | > | E-mail Icon at http://www.analog-innovations.com | 1962 | > > It's what you learn, after you know it all, that counts.
My father also ran a TV/radio repair shop when I was growing up. I always thought it was fun testing tubes. We had a tester in the front lobby like this: https://www.ebay.com/itm/VINTAGE-TEST-O-MATIC-TUBE-TESTER-WITH-WINDOW-DISPLAY-SIGNS-CABINET-TUBE-CHART/282716777092?hash=item41d33baa84:g:t8kAAOSw3EhZeQTm We also had one like this in the back: https://www.ebay.com/itm/Vtg-Precision-Apparatus-Company-Series-910-Tube-Tester-Dynamic-Electronometer/401422815439?hash=item5d76aa10cf:g:EBgAAOSwhgRZ39-G
On Fri, 10 Nov 2017 07:43:15 -0800 (PST), DemonicTubes
<tlackie@gmail.com> wrote:

>On Thursday, November 9, 2017 at 5:52:20 PM UTC-7, Jim Thompson wrote: >> On Thu, 9 Nov 2017 16:47:59 -0800 (PST), mpm <mpmillard@aol.com> >> wrote: >> >> >I am just barely old enough to remember "tube testers" in some stores like Western Auto, ACE Hardware, etc... They were quickly becoming obsolete. >> > >> >On the other hand, I am old enough to remember (somewhat vividly) when the MOS Technology 6502 came out. >> >> I'm old enough to remember that, in my early teens, it was my >> assignment in my father's TV repair shop to test all the tubes on sets >> incoming for repair ;-) >> >> ...Jim Thompson > >My father also ran a TV/radio repair shop when I was growing up. I always thought it was fun testing tubes.
Yep. I enjoyed that part. The part I didn't enjoy was repairing apartment building distribution systems that got hit by lightning and the transformer potting blew out all over the inside of the chassis :-(
> >We had a tester in the front lobby like this: >https://www.ebay.com/itm/VINTAGE-TEST-O-MATIC-TUBE-TESTER-WITH-WINDOW-DISPLAY-SIGNS-CABINET-TUBE-CHART/282716777092?hash=item41d33baa84:g:t8kAAOSw3EhZeQTm > >We also had one like this in the back: >https://www.ebay.com/itm/Vtg-Precision-Apparatus-Company-Series-910-Tube-Tester-Dynamic-Electronometer/401422815439?hash=item5d76aa10cf:g:EBgAAOSwhgRZ39-G
We had the Hickok tester. It went on service calls in case the problem was a simple tube swap-out. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | It's what you learn, after you know it all, that counts.
On 10-11-2017 16:31, bitrex wrote:
> On 11/10/2017 09:11 AM, Phil Hobbs wrote: >> On 11/10/2017 04:04 AM, Mike Coon wrote: >>> In article <6Z6NB.1751$227.328@fx40.iad>, mike.terrell@earthlink.net >>> says... >>>> >>>> bitrex wrote: >>>> > >>>>> Michael A Terrell wrote: >>>> >> >>>>>> bitrex wrote: >>>> >>> >>>>>>> Michael A Terrell wrote: >>>>>>>> >>>>>>>> A common as dirt filament tester. They were common as dirt, and >>>>>>>> sold for about $3 in the early '60s. They hyped as real tube testers. >>>>>>> >>>>>>> "It Does What It Says on the Tin" >>>>>> >>>>>> Just like the cans of 'Replacement Vacuum'? >>>>>> >>>>> >>>>> How do I get the vacuum out of the can and back in the tube, though? >>>> >>>> >>>> That was explained on the tin, not in the ads. >>> >>> I like that idea. Did you have to wear a space-suit in case any vacuum >>> got spilled? >>> >>> Mike. >>> >> >> I still want my Acme Portable Hole. >> >> Cheers >> >> Phil Hobbs >> > > What happens if you put a portable hole inside a portable hole? >
A black hole.
bitrex <bitrex@de.lete.earthlink.net> wrote:

> - tubes are kinda cool
That's a sure sign of an open-circuit heater. -- ~ Adrian Tuddenham ~ (Remove the ".invalid"s and add ".co.uk" to reply) www.poppyrecords.co.uk
On Fri, 10 Nov 2017 20:20:35 +0000,
adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) wrote:

>bitrex <bitrex@de.lete.earthlink.net> wrote: > >> - tubes are kinda cool > >That's a sure sign of an open-circuit heater.
Many of the early tube sets had _series_ wired filaments. So you either tested every tube, or probed every socket, trying to find the open one :-( ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | It's what you learn, after you know it all, that counts.
On Fri, 10 Nov 2017 20:20:35 +0000,
adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) wrote:

>bitrex <bitrex@de.lete.earthlink.net> wrote: > >> - tubes are kinda cool > >That's a sure sign of an open-circuit heater.
This one is nuclear powered https://www.dropbox.com/s/7vkdemdk48k3myd/Kry_Danger.jpg?raw=1 so it doesn't need a heater. It will switch 2 megawatts. -- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
On Fri, 10 Nov 2017 13:28:19 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

>On Fri, 10 Nov 2017 20:20:35 +0000, >adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) wrote: > >>bitrex <bitrex@de.lete.earthlink.net> wrote: >> >>> - tubes are kinda cool >> >>That's a sure sign of an open-circuit heater. > >Many of the early tube sets had _series_ wired filaments. So you >either tested every tube, or probed every socket, trying to find the >open one :-(
Seems parallel wired filaments would make things even more difficult.