Author Topic: The ultimate boat anchor...  (Read 14612 times)

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Online bdunham7Topic starter

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The ultimate boat anchor...
« on: December 17, 2022, 06:25:39 pm »
...or is it?

A custom made 4-beam oscilloscope.  With a published manual.

A 3.5 digit 4.5 digit 5 digit 5.5 digit 6.5 digit 7.5 digit DMM is good enough for most people.
 

Offline pcprogrammer

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Re: The ultimate boat anchor...
« Reply #1 on: December 17, 2022, 08:27:59 pm »
The coils, at least I assume them to be, look much more like a boat anchor  :-DD

Offline Ed.Kloonk

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Re: The ultimate boat anchor...
« Reply #2 on: December 17, 2022, 08:30:03 pm »
iratus parum formica
 
The following users thanked this post: Andrew_Debbie, pcprogrammer

Online Andy Watson

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Re: The ultimate boat anchor...
« Reply #3 on: December 18, 2022, 02:00:10 am »
A custom made 4-beam oscilloscope.  With a published manual.
Whooa! If I've read the manual correctly, not just the electronics, but the CRT appears to have been a custom made glassware - four individual beams!
 

Offline factory

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Re: The ultimate boat anchor...
« Reply #4 on: December 25, 2022, 12:58:12 pm »
It appears your right, four sets of intensity/focus controls on the front panel, as well as the four sets of vertical plates, bandwidth claimed up to 7Mc (MHz). CRT is a K-1119 (possibly made by Dumont). Alt or chopped sweep modes probably made this scope obsolete very quickly.

David
 

Offline Andrew_Debbie

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Re: The ultimate boat anchor...
« Reply #5 on: January 14, 2023, 05:17:35 pm »
Interesting bit of history.   My uncle Ted worked at the labs from the early 1950s until he retired.  There is a chance he used that 'scope.   Unfortunately my chance to ask him has long passed.

That was written in 1958.      7MHz bandwidth.      All 4 beams use the same time base and trigger.

I imagine the 101A lived in dusty corner after the labs took delivery of their first 555.

The dual beam Tektronix 555 came out in 1959.    30MHz bandwith / quad trace possible with pluggins.    Each beam has a time base and trigger, which is far more flexible then the 101A.

   Of course the sweep of each pair of traces are tied to each beam.

I imagine the 101A lived in dusty corner after the labs took delivery of their first 555.
« Last Edit: January 14, 2023, 05:23:27 pm by Andrew_Debbie »
 

Offline Martin.M

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Re: The ultimate boat anchor...
« Reply #6 on: May 02, 2023, 02:19:00 pm »
555 are nice in the home, yes.

4 channels each beam are possible by unsing M plugins.
Later, Tek556, it was faster, = 1A4
« Last Edit: May 02, 2023, 02:21:30 pm by Martin.M »
 


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