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The '''Tektronix 455''' is a 50 MHz dual-trace solid-state portable oscilloscope. | The '''Tektronix 455''' is a 50 MHz dual-trace solid-state portable oscilloscope. | ||
It is functionally similar to the [[453]] and can be seen as its successor. | It is functionally similar to the [[453]] and can be seen as its successor. | ||
The 455 makes extensive use of integrated circuits and is smaller and lighter than the 453. | The 455 makes extensive use of integrated circuits and is smaller and lighter than the 453. | ||
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Tek 455 vertstack.png|Stacked vertical amp | Tek 455 vertstack.png|Stacked vertical amp | ||
</gallery> | </gallery> | ||
{{Custom ICs|455}} | |||
[[Category:400 series scopes]] | [[Category:400 series scopes]] | ||
Revision as of 02:53, 17 August 2021
The Tektronix 455 is a 50 MHz dual-trace solid-state portable oscilloscope. It is functionally similar to the 453 and can be seen as its successor.
The 455 makes extensive use of integrated circuits and is smaller and lighter than the 453.
Key Specifications
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Internals
The final stage of the 455 vertical amplifier employs a differential pair of triple-stacked NPN transistors. The purpose of the stacking is to get higher voltage swing and to eliminate the need for a heat sink.
The 455 uses a linear power supply.
Triggering is done with 155-0121-00 chips, one per channel.
Pictures
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Stacked vertical amp
Custom ICs used in the 455
| Page | Model | Part nos | Description | Designers | Used in |
|---|---|---|---|---|---|
| 155-0121-00 | M131A | 155-0121-00 | trigger subsystem | Larry Gagliani | 455 |
| 155-0122-00 | M132A | 155-0122-00 | sweep control | Larry Gagliani | 455 • SC504 |
| 155-0123-00 | M132 | 155-0123-00 | sweep and pickoff control | Mike Metcalf • Jim Godwin | 455 |
| 155-0124-00 | M138 | 155-0124-00 | horizontal preamplifier | Bob Nordstrom | 455 • SC504 • 2221 • 2230 • 2232 • 2336 • 2337 |
| 155-0155-00 | 155-0155-00 | 155-0155-00 | pre-amplifier | 455 • 465M | |
| 155-0196-00 | 155-0196-00 | 155-0196-00 | trigger | 455 • 7D20 | |
| 203-0130-90 | M130 | 203-0130-90 | preamplifier | Jim Woo | 455 • 465M • 155-0155-00 • 155-0161-00 |