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The '''Tektronix PG501''' is a pulse generator plugin for [[TM500 system]] mainframes.
{{TM500
|mfg=Tektronix
|type=PG501
|function=50 MHz pulse generator
|class=pulse generator
|image=Tek PG501 front 1.jpg
|introduced=1972
|discontinued=1993
|designers=Mark Walker;Mike Reiney;
|manuals=
* [[Media:070-1361-00.pdf|PG501 Instruction Manual]] (OCR)
* [[Media:PG501 Schematics stitched 11x17.pdf|PG501 Stitched Diagrams]]
}}
The PG501 was designed by [[Mark Walker]] and [[Mike Reiney]].


==Specifications==
{{BeginSpecs}}
[[Category:Specifications needed]] ''please add''
{{Spec | Outputs            | simultaneous positive and negative output pulses, fixed 5 ns rise/fall times, independently variable amplitudes from 0.5 V to 5 V into 50 Ω }}
{{Spec | Pulse period      | 20 ns to 20 ms calibrated, 1:10 variable to 200 ms, or externally triggered }}
{{Spec | Pulse duration    | 10 ns to 10 ms calibrated, 1:10 variable to 100 ms, external duration, or "locked on" to adjust output voltage }}
{{Spec | Trigger input      | ≥+1 V High, ≤0.1 V low; max. +5 V DC+peak AC; min. 10 ns on/off; triggers duration generator in Ext Trig mode, controls output in Ext Duration mode }}
{{Spec | Pre-trigger output | 8 ns before main output, 1 V into 50 Ω }}
{{EndSpecs}}


==Manuals==
==Links==
* [http://w140.com/smb/PG501_SM.pdf Tektronix PG501 Manual (OCR, PDF)]
{{Documents|Link=PG501}}
{{PatentLinks|PG501}}
 
==Rear Interface==
* 27B, 28A (GND 27A, 28B) – pre-trigger output, 10 ns before main output, 1 V from 27 Ω source impedance
* 25A (GND 26A) – averaged amplitude output, internally connected to +out or -out via 27 kΩ/20 nF, or disconnected
* 24B (GND 25B) – available to connect in parallel to front panel Trig/Duration Input (connecting cable to be user-installed)
 
==Internals==
The PG501 uses discrete transistors except for a single MC10105L ECL integrated circuit used as a buffer with simultaneous inverting and non-inverting outputs driving the output amplifiers.
 
==Prices==
{| class="wikitable sortable"
|-
! Year
! 1980
! 1984
|-
! Catalog Price
| align="right" | $525
| align="right" | $735
|-
! In 2023 Dollars
| align="right" | $2,000
| align="right" | $2,200
|}


==Pictures==
==Pictures==


<gallery>
<gallery>
File:Tek pg501.JPG
Tek PG501 front 1.jpg | early PG501
File:Pg 501 2.JPG
Tek-pg501-f.jpg
File:Tek pg501 upward.jpg
Tek pg501.JPG         | later PG501
Pg 501 2.JPG
Tek pg501 upward.jpg
</gallery>
 
'''Internal'''
<gallery>
Tek PG501 left 1.jpg      | Left side, later model (SN B0849xx)
Tek PG501 left 1.jpg      | Right side, later model (SN B0849xx)
 
PG501_PCB_TOP_EARLY.jpg    | Left side, early model (SN B081739)
PG501_PCB_BOTTOM_EARLY.jpg | Right side, early model (SN B081739)
</gallery>
 
'''Measurements'''
<gallery>
PG501_Risetime.jpg | Risetime waveform of PG501 (This specimen achieves 2.1 ns)
</gallery>
</gallery>


[[Category:TM500 pulse generator plugins]]
==Components==
[[Category:Pulse generators]]
{{Parts|PG501}}

Latest revision as of 11:56, 4 October 2024

Tektronix PG501
50 MHz pulse generator
Tektronix PG501

Produced from 1972 to 1993

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

The Tektronix PG501 is a 50 MHz pulse generator plug-in for the TM500 system.

The PG501 was designed by Mark Walker and Mike Reiney.

Key Specifications

Outputs simultaneous positive and negative output pulses, fixed 5 ns rise/fall times, independently variable amplitudes from 0.5 V to 5 V into 50 Ω
Pulse period 20 ns to 20 ms calibrated, 1:10 variable to 200 ms, or externally triggered
Pulse duration 10 ns to 10 ms calibrated, 1:10 variable to 100 ms, external duration, or "locked on" to adjust output voltage
Trigger input ≥+1 V High, ≤0.1 V low; max. +5 V DC+peak AC; min. 10 ns on/off; triggers duration generator in Ext Trig mode, controls output in Ext Duration mode
Pre-trigger output 8 ns before main output, 1 V into 50 Ω

Links

Documents Referencing PG501

Document Class Title Authors Year Links
Tekscope 1972 V4 N3 May 1972.pdf Article TM500 series - A New Dimension in Plug-in Instrumentation Bob Ragsdale 1972
070-2088-00.pdf Book TM500 Series Rear Interface Data Book 1975
070-2088-01.pdf Book TM500 Series Rear Interface Data Book 1976
070-2088-04.pdf Book TM500 Series Rear Interface Data Book 1985

Patents that may apply to PG501

Page Title Inventors Filing date Grant date Links
Patent US 3562464A Cam actuated switch having movable and fixed contacts on circuit board Howard Vollum Willem H Verhoef Tony Sprando 1968-10-07 1971-02-09

Rear Interface

  • 27B, 28A (GND 27A, 28B) – pre-trigger output, 10 ns before main output, 1 V from 27 Ω source impedance
  • 25A (GND 26A) – averaged amplitude output, internally connected to +out or -out via 27 kΩ/20 nF, or disconnected
  • 24B (GND 25B) – available to connect in parallel to front panel Trig/Duration Input (connecting cable to be user-installed)

Internals

The PG501 uses discrete transistors except for a single MC10105L ECL integrated circuit used as a buffer with simultaneous inverting and non-inverting outputs driving the output amplifiers.

Prices

Year 1980 1984
Catalog Price $525 $735
In 2023 Dollars $2,000 $2,200

Pictures

Internal

Measurements

Components

Some Parts Used in the PG501

(no results)