81: Difference between revisions
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which drives the 580-series scope using a low impedance, as is required by 580-series scopes. | which drives the 580-series scope using a low impedance, as is required by 580-series scopes. | ||
Type 81 is | The 81 and 81A are significantly different. | ||
Type 81A is solid state and has bandwidth of 50 | Type 81 is tube-based and has bandwidth of 33 megacycles. | ||
Type 81A is solid-state and has bandwidth of 50 megacycles. | |||
* [http://w140.com/tek-81.pdf Tektronix Type 81 Manual (PDF)] | * [http://w140.com/tek-81.pdf Tektronix Type 81 Manual (PDF)] | ||
* [http://w140.com/tek-81a.pdf Tektronix Type 81A Manual (PDF)] | * [http://w140.com/tek-81a.pdf Tektronix Type 81A Manual (PDF)] | ||
Revision as of 18:53, 28 May 2012
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 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, which drives the 580-series scope using a low impedance, as is required by 580-series scopes.
The 81 and 81A are significantly different. Type 81 is tube-based and has bandwidth of 33 megacycles. Type 81A is solid-state and has bandwidth of 50 megacycles.
