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Pre Amplifier 122

Pre Amplifier 122; Tektronix; Portland, (ID = 1090356) Equipment Pre Amplifier 122; Tektronix; Portland, (ID = 663407) Equipment
Pre Amplifier 122; Tektronix; Portland, (ID = 1090357) Equipment Pre Amplifier 122; Tektronix; Portland, (ID = 1090358) Equipment
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Pre Amplifier 122; Tektronix; Portland, (ID = 1090356) Equipment
Tektronix; Portland,: Pre Amplifier 122 [Equipment] ID = 1090356 647x933
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For model Pre Amplifier 122, Tektronix; Portland, OR:
Tektronix 122 Low Level Amplifier front view
Country:  United States of America (USA)
Manufacturer / Brand:  Tektronix; Portland, OR
Year: 1950 Category: Service- or Lab Equipment
Valves / Tubes 3: 12AX7 12AU7 12AU7
Main principle none
Wave bands - without
Power type and voltage Other, details in remarks or not known.
Power out
from Model: Pre Amplifier 122 - Tektronix; Portland, OR
Material Metal case
Shape Tablemodel, high profile (upright - NOT Cathedral nor decorative).
Dimensions (WHD) 10.62 x 4.5 x 6 inch / 270 x 114 x 152 mm
Notes Power Requirements: from batteries through a plug: -90V at 4mA; +135V at 5mA; 6.3V at 0.9A
The 122 PreAmplifier was designed specifically to increase the sensitivity of the Type 512 Oscilloscope to 5uV/cm, over the band of 1/6Hz to 40kHz.Thus a maximum voltage gain of 1000 is available, while a frequency compensated attenuator network permits the gain to be reduced to 100 to accommodate input signals of as much as 0.2V peak amplitude without distortion.
Maximum Output: -20Vpp
The tube 2AX7 is special selected for differential balance.
Price in first year of sale 85.00 $
Source of data - - Manufacturers Literature

Model page created by Pius Steiner. See "Data change" for further contributors.

All listed radios etc. from Tektronix; Portland, OR
Here you find 332 models, 318 with images and 80 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.