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The Tektronix 453 is a portable 50MHz dual-trace oscilloscope  
{{Oscilloscope Sidebar |
[[introduced in 1966]] and produced until the mid-1970's.   
title=Tektronix 453 |
Initial versions had Nuvistor tubes in the front end  
summary=50 MHz portable dual-trace scope |
as cathode-follower voltage buffers.   
image=Tek 453 2.jpg |
caption=Tektronix 453 front |
years=1966 — ?|
manuals=
*[http://w140.com/mmm/tek-453.pdf Tektronix 453 Manual (PDF)]
*[http://w140.com/mmm/tek-453a.pdf Tektronix 453A Manual (PDF)]
*[http://w140.com/tek_453_military_manual.pdf Tektronix 453 Manual, Military Version (PDF)]
}}
 
The '''Tektronix 453''' is a portable 50 MHz dual-trace oscilloscope [[introduced in 1966]] and produced until the mid-1970's.   
 
Initial versions had Nuvistor tubes in the front end as cathode-follower voltage buffers.   
Later versions used FETs for the same purpose.   
Later versions used FETs for the same purpose.   
The vertical amplifier that drives the CRT deflection plates  
The vertical amplifier that drives the CRT deflection plates  
is a cascoded differential amplifier made of NPN transistors.
is a cascoded differential amplifier made of NPN transistors.
Triggering uses [[tunnel diodes]],  
 
with a trigger preamplifier preceding the actual trigger circuit.   
Triggering uses [[tunnel diodes]], with a trigger preamplifier preceding the actual trigger circuit.   
The 453 is almost entirely solid-state, even in its first version. 
The only tubes other than the CRT are
the [[5642]] HV rectifiers and
a few [[8393]] Nuvistor triode tubes. 
Each horizontal deflection plate is
driven by a common-emitter amplifier with feedback. 
The total CRT acceleration is 10kV. 
The CRT cathode voltage is -2kV and
the CRT anode voltage is +8kV. 
A Tektronix 453 consumes 100 watts power
and weighs 29 pounds (13.2kg).


The 453 came with a rigid metal cap  
The 453 is almost entirely solid-state, even in its first version.  The only tubes other than the CRT are
that protects the face of the scope while it is in transit.   
the [[5642]] HV rectifiers and  a few [[8393]] Nuvistor triode tubes. 
 
Each horizontal deflection plate is driven by a common-emitter amplifier with feedback. 
The total CRT acceleration is 10 kV.  The CRT cathode voltage is -2 kV and the CRT anode voltage is +8 kV. 
A Tektronix 453 consumes 100 W power and weighs 29 pounds (13.2 kg).
 
The 453 came with a rigid metal cap that protects the face of the scope while it is in transit.   
This cap has a compartment for storing probes and accessories.   
This cap has a compartment for storing probes and accessories.   
Inside the 453, the electronics are rather densely packed  
 
in order for the scope to be compact.   
Inside the 453, the electronics are rather densely packed in order for the scope to be compact.   
The top and bottom cover of the case  
The top and bottom cover of the case separate simultaneously using and ingenious clasp.   
separate simultaneously using and ingenious clasp.   
Removing the rear cover exposes the remaining fuses and circuitry.   
Removing the rear cover exposes the remaining fuses and circuitry.   


There are two trigger/sweep units in a 453,  
There are two trigger/sweep units in a 453, thereby enabling delayed sweep mode.   
thereby enabling delayed sweep mode.   
There are two delayed sweep modes: "B runs after A" and "B triggerable after A".
There are two delayed sweep modes:
"B runs after A" and "B triggerable after A".


The 453 uses Nuvistors.   
The 453 uses Nuvistors.  The 453A, [[introduced in 1971]], replaced the Nuvistors with transistors,  
The 453A, [[introduced in 1971]], replaced the Nuvistors with transistors,  
extended the bandwidth to 60 MHz, increased the graticule from 6cm × 10cm to 8cm × 10cm,
extended the bandwidth to 60MHz,  
and introduced a mixed-sweep mode.  Mixed-sweep mode starts the sweep at the "A" time/div rate and  
increased the graticule from 6cm x 10cm to 8cm x 10cm,
then, after a delay set by a ten-turn vernier dial, continues at the "B" sweep time/div rate.
and introduced a mixed-sweep mode.  Mixed-sweep mode starts
the sweep at the "A" time/div rate and then, after a delay set by a ten-turn vernier dial, continues at the "B" sweep time/div rate.


The 453A Mod 127C appears in the 1971 Television Products Catalog, with
The 453A Mod 127C appears in the 1971 Television Products Catalog, with the description:
the description:
<blockquote>
<blockquote>
With the Mod 127C, and Internal TV Sync Separator circuit permits
With the Mod 127C, and Internal TV Sync Separator circuit permits
Line 51: Line 52:
</blockquote>
</blockquote>


*[http://w140.com/mmm/tek-453.pdf Tektronix 453 Manual (PDF)]
==Specifications==
*[http://w140.com/mmm/tek-453a.pdf Tektronix 453A Manual (PDF)]
[[Category:Specifications needed]]
*[http://w140.com/tek_453_military_manual.pdf Tektronix 453 Manual, Military Version (PDF)]
''please add''


==Pictures==
<gallery>
<gallery>
Image:Tek 453 1.jpg
Image:Tek 453 1.jpg
Line 63: Line 65:
Image:Tek 453 6.jpg
Image:Tek 453 6.jpg
Image:Tek 453 7.jpg
Image:Tek 453 7.jpg
Image:453A-4.JPG|453A-4, Simply Version of 453A
Image:453A-4.JPG|453A-4, simpler version of 453A
File:Wellenkino 453.jpg|453
File:Wellenkino 453.jpg|453
</gallery>
</gallery>
[[Category:400 series scopes]]
[[Category:Specifications needed]]

Revision as of 02:40, 14 June 2014

{{{manufacturer}}} 
50 MHz portable dual-trace scope
Tektronix 453 front

Produced from to

Manuals
Manuals – Specifications – Links – Pictures


The Tektronix 453 is a portable 50 MHz dual-trace oscilloscope introduced in 1966 and produced until the mid-1970's.

Initial versions had Nuvistor tubes in the front end as cathode-follower voltage buffers. Later versions used FETs for the same purpose.

The vertical amplifier that drives the CRT deflection plates is a cascoded differential amplifier made of NPN transistors.

Triggering uses tunnel diodes, with a trigger preamplifier preceding the actual trigger circuit.

The 453 is almost entirely solid-state, even in its first version. The only tubes other than the CRT are the 5642 HV rectifiers and a few 8393 Nuvistor triode tubes.

Each horizontal deflection plate is driven by a common-emitter amplifier with feedback. The total CRT acceleration is 10 kV. The CRT cathode voltage is -2 kV and the CRT anode voltage is +8 kV. A Tektronix 453 consumes 100 W power and weighs 29 pounds (13.2 kg).

The 453 came with a rigid metal cap that protects the face of the scope while it is in transit. This cap has a compartment for storing probes and accessories.

Inside the 453, the electronics are rather densely packed in order for the scope to be compact. The top and bottom cover of the case separate simultaneously using and ingenious clasp. Removing the rear cover exposes the remaining fuses and circuitry.

There are two trigger/sweep units in a 453, thereby enabling delayed sweep mode. There are two delayed sweep modes: "B runs after A" and "B triggerable after A".

The 453 uses Nuvistors. The 453A, introduced in 1971, replaced the Nuvistors with transistors, extended the bandwidth to 60 MHz, increased the graticule from 6cm × 10cm to 8cm × 10cm, and introduced a mixed-sweep mode. Mixed-sweep mode starts the sweep at the "A" time/div rate and then, after a delay set by a ten-turn vernier dial, continues at the "B" sweep time/div rate.

The 453A Mod 127C appears in the 1971 Television Products Catalog, with the description:

With the Mod 127C, and Internal TV Sync Separator circuit permits stable internal line or Field-rate triggering from displayed composite video or composite sync waveforms. External /10 trigger sources are replaced by Internal TV Sync positions providing Line sync pulses to the B Sweep circuit and either Field or Line sync pulses to the A sweep circuit.

Specifications

please add

Pictures

  • 453A-4, simpler version of 453A

    453A-4, simpler version of 453A

  • 453

    453

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