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81: Difference between revisions
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The Tektronix Type 81 is a plug-in adapter so that letter-series and 1-series plug-ins can | The Tektronix Type 81 is a plug-in adapter so that [[letter-series and 1-series plug-ins]] can | ||
be used in 580-series scopes. The Type 81 contains a two-stage amplifier. The letter-series | be used in [[580-series scopes]]. The Type 81 contains a two-stage amplifier. The letter-series | ||
plug-in drives the input stage of the Type 81 which is a high impedance, similar to the input | plug-in drives the input stage of the Type 81 which is a high impedance, similar to the input | ||
of a 530-, 540-, or 550-series scope. The second stage of the Type 81 is a cathode-follower, | of a 530-, 540-, or 550-series scope. The second stage of the Type 81 is a cathode-follower, | ||