Introduction to the 7000-Series
Howard Vollum himself wrote the introduction message on page 1 of this supplement, where he presented the 7000 series as a replacement to the 500 scope series, emphasizing the necessity to switch to a new platform for modular high-end scopes due to the limitations of the original 500 series platform designed in 1953. According to Vollum, $28 million were spent in two years to develop the initial components and products of the 7000 series.
While the original 7504 and 7704 mainframes introduced in 1969 were short-lived, the series lasted until the early 1990s, with some of the original 13 plug-ins like the 7A22 or the 7S11 remaining in production throughout.
Common features of 7000-series scopes
- One (7912) or two (all other 7000) vertical plug-in slots
- Zero (7612D), one (7xx3, 7912) or two (7xx4) horizontal plug-in slots
- Horizontal and vertical plug-ins can be used in non-native slots
- On screen readout controlled from plug-ins including probe scaling
- Differential, calibrated 50 Ω signal and trigger connections from plug-in to backplane
7000 series functional color code
Mode Selection Trigger Source or Control Uncalibrated Variable Denotes functional relation