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There is a phase equalizer after the delay line to mitigate the | There is a phase equalizer after the delay line to mitigate the | ||
harm done to pulse fidelity by the delay line. | harm done to pulse fidelity by the delay line. | ||
The 454 uses the [[T4540]] CRT. | |||
==Links== | ==Links== | ||
Revision as of 18:23, 7 October 2018
The Tektronix 454 is a 150 MHz portable dual-trace scope introduced in March 1967.
It can be seen as an improved 453. The successor 454A was introduced in 1971.
The 454 is the fastest general-purpose Tektronix scope that does not use proprietary hybrid or integrated circuits. It uses a CRT with distributed vertical deflection plates.
Specifications
With the input sensitivity set to 10 mV/div and above, the 454A has a vertical bandwidth of 150 MHz. At 5 mV/div it is 100 MHz, and at 2 mV/div it is 50 MHz.
It is possible to cascade the channel-1 and channel-2 input amplifiers to obtain a sensitivity of 400 μV/div. In that configuration, the vertical bandwidth is 33 MHz.
The 454 weighs 29 pounds and consumes about 130 watts. please add
Internals
The 454 has a 140 ns delay line in the signal path after the input channel switching and before the main vertical amplifier. There is a phase equalizer after the delay line to mitigate the harm done to pulse fidelity by the delay line.
The 454 uses the T4540 CRT.
Links
Pictures
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454A Front
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454A Bottom
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454A Vertical amp
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454A Top
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'A' intensified during 'B' mode
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