Antique radios, Old Time Radios

Oscilloscope 122A/AR (122 A/AR)

ID = 128161

Hewlett-Packard, HP;: Oscilloscope 122A/AR [Equipment] ID = 435163 300x280

Bild von HP Memory Project

Country: United States of America (USA)	Manufacturer/Brand: Hewlett-Packard, (HP); Palo Alto, CA
Year: 1959	Type: Service- or Lab Equipment
Valves / Tubes	25: 12AU7 6DS8 6AU6 12AT7 6AN8 6U8 6AQ5 5642 12B4A 5651 5AQP1
Transistors	2:

Principle	not available
Wave bands	- without
Power type and voltage	Alternating Current supply (AC) / 115/230 Volt
Loudspeaker/pwr.out	- For headphones or amp.
from Radiomuseum.org	Model: Oscilloscope 122A/AR
Material	Metal case
Shape	Tablemodel, high profile (upright - NOT Cathedral nor Tombstone).
Dimensions (WHD)	248 x 310 x 540 mm / 9.8 x 12.2 x 21.3 inch
Notes	The Hewlett-Packard Model 122A/AR is a dc to 200 kHz (kilocycle) dual-trace cathode-ray oscilloscope. It has accurately calibrated input sensitivity and sweep speed ranges. This oscilloscope features dc-coupled differential amplifiers and dual trace operation. Differential amplifiers are useful since they reject the common mode (in-phase) part of the input while amplifying the differential (out-of-phase) part. Some tube-types are used repeatedly. Transistors: CTP1113; 2N383.

This model was suggested by Sven Hoffmann.

All listed radios etc. from Hewlett-Packard, (HP); Palo Alto, CA
Here you find 155 models, 120 with images and 48 with schematics.