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7704: Difference between revisions
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[[introduced in 1969|introduced in August 1969]] that can take | [[introduced in 1969|introduced in August 1969]] that can take | ||
two [[7000-series_plug-ins#Vertical plug-ins|7000-series vertical plug-ins]] | two [[7000-series_plug-ins#Vertical plug-ins|7000-series vertical plug-ins]] | ||
and two [[7000-series_plug-ins#Horizontal plug-ins|7000-series horizontal plug-ins]]. | and two [[7000-series_plug-ins#Horizontal plug-ins|7000-series horizontal plug-ins]]. The 7704 is one of the initial oscilloscopes introducing the [[Introduction_to_the_7000-Series|7000-Line]] and very lavishly build using contacts embedded in the aluminium frame for interconnecting the gold plated PCB boards. | ||
It was superseded by the [[7704A]] in 1973. | It was superseded by the completely redesigned [[7704A]] in 1973. | ||
There is also a rack-mount version, the '''R7704'''. | There is also a rack-mount version, the '''R7704'''. | ||
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==Internals== | ==Internals== | ||
The 7704 uses an all-discrete switch-mode power supply (SMPS) in resonant half-bridge topology. | The 7704 uses an all-discrete switch-mode power supply (SMPS) in resonant half-bridge topology. | ||
The CRT voltages and heating are produced in a separate switching stage running off the main SMPS DC output. | The CRT voltages and heating are produced in a separate switching stage running off the main SMPS DC output. | ||
Logic, channel switching, and [[7000_series_readout_system|readout]] use the classic TEK 7000 series custom ICs ([[155-0009-00]] to [[155-0022-00]]), the horizontal and vertical amplifiers are completely discrete. | |||
==Links== | ==Links== | ||
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==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
7704-front.jpg | 7704 front | 7704-front.jpg | 7704 front | ||
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7704 right2.jpg | Right side of 7704 contains readout circuitry | 7704 right2.jpg | Right side of 7704 contains readout circuitry | ||
</gallery> | </gallery> | ||
[[Category:7000 series non-storage mainframes]] | [[Category:7000 series non-storage mainframes]] | ||