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The Type 544 is a 50MHz scope [[introduced in 1964]].   
{{Oscilloscope Sidebar|
It has one timebase.
title=Tektronix 544|
The timebase has several horizontal magnifier modes:  
image=Tek 544.jpg|
x2, x5, x10, x20, x50, and x100.
caption=Tektronix 544, front view|
To make horizontal magnification usable, the 544 has a
years=1964 — ?|
vernier horizontal position control in addition to the  
summary=50 MHz oscilloscope|
manuals=
* [http://bama.edebris.com/download/tek/544/544.djvu Tektronix 544 Manual (DjVu)]
* [http://w140.com/tek_544.pdf Tektronix 544 Manual (PDF)]
* [http://w140.com/Hi-speed_recorder.pdf General Electric Report from 1968 Discussing Tek 544 Mod 108G (PDF)]
}}
 
The Type 544 is a 50 MHz scope [[introduced in 1964]].  It has one timebase.
The timebase has several horizontal magnifier modes: x2, x5, x10, x20, x50, and x100.
To make horizontal magnification usable, the 544 has a vernier horizontal position control in addition to the  
regular horizontal position control.   
regular horizontal position control.   
The fastest calibrated sweep is 10ns/div.
The fastest calibrated sweep is 10 ns/div.  
Some magnification modes provide  
Some magnification modes provide sweeps faster than 10 ns/div, but in those modes the horizontal scale is not calibrated, and a lamp on the front panel lights up to remind the operator of that.
sweeps faster than 10ns/div,  
but in those modes the horizontal scale is not calibrated,  
and a lamp on the front panel lights up  
to remind the operator of that.
 
The 544 (at least the early ones) uses the same
[[tunnel diodes|tunnel diode]] triggering circuit
as is used in early [[547]]
(tunnel diode in the collector load of a PNP differential amplifier).  


A factory modification, MOD 108G,
The 544 (at least the early ones) uses the same [[tunnel diodes|tunnel diode]] triggering circuit
was available that increased the accelerating voltage to 24kv. 
as is used in early [[547]] (tunnel diode in the collector load of a PNP differential amplifier).  
The 1968 catalog lists an RM544 Mod 720
which has a direct-access plug-in and has 1ns risetime.


The vertical amplifier and low voltage power supply of the 544
A factory modification, MOD 108G, was available that increased the accelerating voltage to 24kv.   
are the same as those of the [[546]] and [[547]].   
The 1968 catalog lists an RM544 Mod 720 which has a direct-access plug-in and has 1ns risetime.
The 544 uses the [[154-0478-00]] CRT which is also used by the
[[543|543B]], [[545|545B]], [[546]], and [[547]].


* [http://bama.edebris.com/download/tek/544/544.djvu Tektronix 544 Manual (DjVu)]
The vertical amplifier and low voltage power supply of the 544 are the same as those of the [[546]] and [[547]].
* [http://w140.com/tek_544.pdf Tektronix 544 Manual (PDF)]
The 544 uses the [[154-0478-00]] CRT which is also used by the [[543|543B]], [[545|545B]], [[546]], and [[547]].
* [http://w140.com/Hi-speed_recorder.pdf General Electric Report from 1968 Discussing Tek 544 Mod 108G (PDF)]


<gallery>
<gallery>
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File:Tek rm544.jpg|RM544 front view
File:Tek rm544.jpg|RM544 front view
</gallery>
</gallery>
[[Category:Tube scopes]]
[[Category:Specifications needed]
Retrieved from "https://w140.com/tekwiki/wiki/Special:MobileDiff/9225"

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