Equipment information:

Hewlett Packard 212A Generator
Manufacturer:
Hewlett Packard
Model: 212A
Date: 1954
Category: Measurement instruments
Group: Generator
Description: Pulse Generator
Information:
                                    The Model 212A Pulse Generator is a fundamental measuring
instrument for determining the action of circuits under
conditions of rapid change.
The pulse produced by this instrument has a short time of
rise-and decay with a flat top and minimum of overshoot.
Either positive or negative pulses are available and the
pulse shape is independent of the repetition rate, connected
load, sync condition, supply voltages, and output attenuator
setting. The pulse length is continuously variable from . 07
to 10 microseconds.
This instrument is applicable to the testing of radar
systems, nuclear counting circuits, television systems,
response of video amplifiers, filters and band pass circuits
and pulse modulation of UHF signal generators.

These manuals are available for the above equipment:

Hewlett Packard -- 212A -- Service and User Manual
File name: HewlettPackard-6833-Manual-Page-1-Picture
Manual Type: Service and User Manual
Pages: 61
Size: 20.30 Mbytes (21288108 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date: October 1959
Quality: Scanned document, all readable.
Upload date:
MD5: 40825396078874b3f7467d003e2d2b1d
ed2kID: f6dce4121ccd524ca9c37c94387fe652
Downloads: 58 since 31 May 2015
Information:
SERI A IS PREFIXED: 419

Section I GENERAL DESCRIPTION
l-l
General........................................................................................................................1-1
1-2 Accessory
Cables....................................................................................................1-1
Section II OPERATING INSTRUCTIONS
2-1 Inspection
.....................................................................................................................2-1
2-2 Controls and Terminals
............................................ยป.......................................2-1
2-3 Automatic Overload Relay Protection
..............................................................2-2
2-4
Operation.....................................................................................................................2-2
2-5 Waveshape of Output Pulse
a..............................................2-3
2-fc Positive and Negative Pulse Output
Levels.....................................................2-4
2-7 Operation of Pulse Length and Pulse Rate
Controls....................................2-4
2-8 Operation of Pulse Position
Control.................................................................2-5
Section m CIRCUIT DESCRIPTION
3-1 General
.........................................................................................................................3-1
3-2 Rep. Rate
MV............................................................................................................3-1
3-3 Delay MV and Blocking Oscillator 3-1
3-4 Pulse Position MV and Blocking Oscillator 3-2
3-5 Pulse Forming Thyratron
V6...............................................................................3-2
3-6 Pulse Length MV and Blocking
Oscillator.........................................................3-2
3-7 Pulse Terminating Thyratron
V16......................................................................3-3
3-8 Clipper
Circuits.........................................................................................................3-3
3-9 Output
Amplifier.......................................................................................................3-3
3-10 Power Supply
.............................................................................................................3-3
Section IV MAINTENANCE
4-1 Output Pulse
Analysis................................................................................................4-1
4-2
Adjustments...............................................................................................................4-3
4-3 Servicing Negative High Voltage Supply (V4, V12, V14,
etc.) .... 4-5
4-4 Thyratron
Replacement............................................................................................4-5
4-5 Replacement of Load Resistor R21 and R22 ........... 4-6
4-6 Trouble Shooting Chart
.......................................................................................4-7
Section V TABLE OF REPLACEABLE
PARTS..........................................................................
5-1
HewlettPackard-6833-Manual-Page-1-Picture
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