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The Tektronix 442 is a | The '''Tektronix 442''' is a 35 MHz dual-trace oscilloscope with a single timebase. | ||
Serials numbers from B010100 to B010786 use the [[154-0729-00]] CRT. | Serials numbers from B010100 to B010786 use the [[154-0729-00]] CRT. | ||
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Image:Tek 422 2.JPG | Image:Tek 422 2.JPG | ||
</gallery> | </gallery> | ||
[[Category:400 series scopes]] | |||
[[Category:Specifications needed]] | |||
Revision as of 03:34, 14 June 2014
The Tektronix 442 is a 35 MHz dual-trace oscilloscope with a single timebase.
Serials numbers from B010100 to B010786 use the 154-0729-00 CRT. Starting with serial number B010787, the 154-0804-00 CRT is used.
Triggering is done using a trigger amplifier made of discrete bipolar transistors and a 74S00 TTL quad NAND gate configured as a flip-flop.
The power supply is linear and regulated using opamps as error amplifiers.
The vertical and horizontal amplifiers are made of discrete bipolar transistors except for the dual-JFETs that are used as high-impedance buffers at the signal inputs.
The anode voltage on the CRT is 10kV and the standard phosphor was P31.
A Tektronix 442 consumes 36 watts and weighs about 20 pounds.
