Telequipment S51: Difference between revisions

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{{Oscilloscope Sidebar |
title=Telequipment S51 |
summary=3 MHz tube scope |
image=TQ S51B 7.jpg |
caption=Telequipment S51B |
introduced=(?) |
discontinued=(?) |
manuals=
* [[Media:Telequipment_S51_User_Manual.pdf | Telequipment S51 user manual]] (PDF, unrelated schematics)
* [[Media:Telequipment_S51_Schematic.pdf  | Telequipment S51 schematics]] (PDF)
}}
The '''Telequipment S51''' is a low-cost single-channel 3 MHz scope originally intended for the service and education markets.
There was an '''S51E''' model variant for education that eliminated the external trigger input in favour of a sweep (sawtooth) output, and an '''S51T''' variant with an additional (selectable) horizontal preamplifier (100 mV/cm at 10 kHz bandwidth).
It contains 7 tubes except the CRT (one [[ECF80]], six [[ECC88]]) and one transistor. 


* [[Media:Telequipment_S51_User_Manual.pdf | Telequipment S51 user manual]] (PDF)
The S51 is convection cooled.
* [[Media:Telequipment_S51_Schematic.pdf  | Telequipment S51 schematics]] (PDF)
 
{{BeginSpecs}}
{{Spec | Bandwidth | DC to 3 MHz (−3 dB), AC cutoff }}
{{Spec | Deflection | 100 mV/cm to 50 V/cm, 1−2−5 }}
{{Spec | Input impedance | 1 MΩ // 30 pF ([[banana connector]]) }}
{{Spec | Sweep | 100 ms/cm to 1 μs/cm, 1−10 and 10:1 variable (slowest 1 s/cm) }}
{{Spec | CRT | 5" Brimar Se5F, P1 [[phosphor]] initially / P31 on later models; 3 kV acceleration }}
{{Spec | X input | 1-2 V/cm, 5 Hz − 200 kHz; 500 kΩ // 100 pF; (S51T: Optional 100 mV/cm, 10 kHz mode) }}
{{Spec | Features | Auto trigger, TV trigger, Z input }}
{{EndSpecs}}
 
==Links==
* [https://www.youtube.com/watch?v=XLMQhHliHLA Fixing a Telequipment S51B] @ YouTube
* [https://www.radiomuseum.org/r/telequip_oscilloscope_s51bs_51.html Telequipment S51B] @ radiomuseum.org
 
==Pictures==
'''S51B'''
<gallery>
TQ S51B 7.jpg
TQ S51B 2.jpg
TQ S51B 3.jpg
TQ S51B 9.jpg
TQ S51B 5.jpg
</gallery>
'''S51E'''
<gallery>
TQ S51E 1.jpg
TQ S51E 2.jpg
</gallery>


[[Category:Telequipment]]
[[Category:Telequipment]]
[[Category:Tube scopes]]

Revision as of 05:09, 14 August 2019

{{{manufacturer}}} 
3 MHz tube scope
Telequipment S51B

Produced from (?) to (?)

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Telequipment S51 is a low-cost single-channel 3 MHz scope originally intended for the service and education markets.

There was an S51E model variant for education that eliminated the external trigger input in favour of a sweep (sawtooth) output, and an S51T variant with an additional (selectable) horizontal preamplifier (100 mV/cm at 10 kHz bandwidth).

It contains 7 tubes except the CRT (one ECF80, six ECC88) and one transistor.

The S51 is convection cooled.

Key Specifications

Bandwidth DC to 3 MHz (−3 dB), AC cutoff
Deflection 100 mV/cm to 50 V/cm, 1−2−5
Input impedance 1 MΩ // 30 pF (banana connector)
Sweep 100 ms/cm to 1 μs/cm, 1−10 and 10:1 variable (slowest 1 s/cm)
CRT 5" Brimar Se5F, P1 phosphor initially / P31 on later models; 3 kV acceleration
X input 1-2 V/cm, 5 Hz − 200 kHz; 500 kΩ // 100 pF; (S51T: Optional 100 mV/cm, 10 kHz mode)
Features Auto trigger, TV trigger, Z input

Links

Pictures

S51B

S51E