Nelson-Ross PSA-011: Difference between revisions

Latest revision as of 08:01, 6 December 2023

Nelson-Ross PSA-011
20 kHz Spectrum Analyzer plug-in Nelson-Ross PSA-011 front view Compatible with 500-series scopes Produced from (?) to (?) Manuals Manual for Nelson-Ross 001, 002, 003, 011, 012, and 013 (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Nelson-Ross PSA-011 is a spectrum analyzer plug-in for 500-series scopes. The center frequency range is 10 Hz to 20 kHz. It can display amplitude in linear or log scale.

Key Specifications

please add

Internals

The input is high-impedance and is AC-coupled. The PSA-011 is a single-conversion architecture with a pair of 6BH6 tubes serving as a balanced mixer. After IF filtering and amplification, the signal is detected using a 1N34A germanium diode. The detected voltage from the diode directly drives pin 3 (vertical -) of the scope plug-in interface connector. Pin 1 (vertical +) of the scope plug-in interface connector is fed a DC vertical position voltage by the PSA-011.

The voltage-controlled local oscillator is tuned using a variable-reactance tube, V6, a 6201.

There were at least two major versions produced, without changing the model number. Compare the picture from the manual below with the other front panel photographs.

There was also a tracking generator, called the Nelson Ross 101 SYNCHRO-SWEEP Generator. These are very rare.

Pictures

Front panel, as shown in manual.
Front
Front 2
Front right
Front left
Bottom
Bottom 2
Left
Rear right
Rear
Rear 2
Rear 3
Schematic

Components

Some Parts Used in the Nelson-Ross PSA-011

Part	Part Number(s)	Class	Description	Used in
1N34A		Discrete component	germanium point-contact diode	Nelson-Ross PSA-011
6201		Vacuum Tube (Dual Triode)	dual high-gain triode	Nelson-Ross PSA-011
6BH6	154-0026-00 • 154-0285-00	Vacuum Tube (Pentode)	pentode	130 • 162 • 310 • 310A • 512 • 517 • 517A • 524 • Nelson-Ross PSA-011

@@ Line 1: / Line 1: @@
-The Nelson-Ross PSA-011 is a spectrum analyzer plug-in for [[500-series scopes]].
+{{Plugin Sidebar
-The center frequency range is 10 Hz to 20 kHz.  I can display amplitude in
+|manufacturer=Nelson-Ross
-linear or log scale.  The voltage-controlled local oscillator is tuned
+|series=500-series scopes
-using a variable-reactance tube, V6, a [[6201]].
+|type=PSA-011
+|summary=20 kHz Spectrum Analyzer plug-in
+|image=Nelson-ross-psa011-2.jpg
+|caption=Nelson-Ross PSA-011 front view
+|introduced=(?)
+|discontinued=(?)
+|manuals=
+* [[Media:Nelson-ross psa-001 002 003 011 012 013 plug-ins instruction sch.pdf|Manual for Nelson-Ross 001, 002, 003, 011, 012, and 013]]
+}}
+The '''Nelson-Ross PSA-011''' is a spectrum analyzer plug-in for [[500-series scopes]].
+The center frequency range is 10 Hz to 20 kHz.  It can display amplitude in
+linear or log scale.
-* [http://w140.com/kurt/nelson_ross_001-002-003-011-012-013.pdf Manual for Nelson-Ross 001, 002, 003, 011, 012, and 013 (PDF)]
+{{MissingSpecs}}
+==Internals==
+The input is high-impedance and is AC-coupled.  The PSA-011 is a single-conversion architecture with a pair of [[6BH6]] tubes serving as a balanced mixer.
+After IF filtering and amplification, the signal is detected using a [[1N34A]] germanium diode.
+The detected voltage from the diode directly drives pin 3 (vertical -) of the scope plug-in interface connector.
+Pin 1 (vertical +) of the scope plug-in interface connector is fed a DC vertical position voltage by the PSA-011.
+The voltage-controlled local oscillator is tuned using a variable-reactance tube, V6, a [[6201]].
+There were at least two major versions produced, without changing the model number. Compare the picture from the manual below with the other front panel photographs.
+There was also a tracking generator, called the Nelson Ross 101 SYNCHRO-SWEEP Generator. These are very rare.
+==Pictures==
 <gallery>
-File:PC280162.JPG|front
+NR-011-manual-image.png|Front panel, as shown in manual.
-File:PC280163.JPG|front 2
+PC280162.JPG|Front
-File:PC280172.JPG|front right
+PC280163.JPG|Front 2
-File:PC280171.JPG|front left
+PC280172.JPG|Front right
-File:PC280170.JPG|bottom
+PC280171.JPG|Front left
-File:PC280165.JPG|bottom 2
+PC280170.JPG|Bottom
-File:PC280166.JPG|left
+PC280165.JPG|Bottom 2
-File:PC280173.JPG|rear right
+PC280166.JPG|Left
-File:PC280174.jpg|rear
+PC280173.JPG|Rear right
-File:PC280169.JPG|rear 2
+PC280174.jpg|Rear
-File:PC280164.JPG|rear 3
+PC280169.JPG|Rear 2
-Nelson-ross_011_schem_sm.png|schematic
+PC280164.JPG|Rear 3
+Nelson-ross_011_schem_sm.png|Schematic
 </gallery>
+==Components==
+{{Parts|Nelson-Ross PSA-011}}
+[[Category:500 series plugins]]
+[[Category:Spectrum analyzers]]
+[[Category:Nelson-Ross products]]