3A1: Difference between revisions
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cathode-follower stage made of two [[7586]] Nuvistor tubes. | cathode-follower stage made of two [[7586]] Nuvistor tubes. | ||
Channel switching in ALTERNATE mode is done using diodes. | Channel switching in ALTERNATE mode is done using diodes. | ||
drives the vertical deflection plates of the scope uses a pair of [[8233]] | The output stage that drives the vertical deflection plates of the scope uses | ||
frame grid power pentode tubes. | a pair of [[8233]] frame grid power pentode tubes. | ||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
3a1 front2.jpg |Front view | |||
3a1 right2.jpg | Right side | |||
3a1 right.jpg | Right side | |||
3a1 top.jpg | Top view | |||
3a1 bottom.jpg | Bottom view | |||
3a1 input amp and switching.png|input amplifier schematic | |||
</gallery> | </gallery> | ||
[[Category:560 series plugins]] | [[Category:560 series plugins]] | ||
Revision as of 18:25, 3 February 2018
Template:Plugin Sidebar 2 The Tektronix Type 3A1 is a dual-trace amplifier plug-in introduced in 1962 for 560-series scopes.
Key Specifications
| Bandwidth | 10 MHz |
|---|---|
| Risetime | 35 ns |
| Input impedance | 1 MΩ // 47 pF |
| Deflection factor | 10 mV/div to 10 V/div, 1-2-5 sequence |
Internals
The input signal passes through compensated attenuators and then into a cathode-follower stage made of two 7586 Nuvistor tubes.
Channel switching in ALTERNATE mode is done using diodes. The output stage that drives the vertical deflection plates of the scope uses a pair of 8233 frame grid power pentode tubes.
Pictures
-
Front view
-
Right side
-
Right side
-
Top view
-
Bottom view
-
input amplifier schematic
