7B81P: Difference between revisions
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{{Plugin Sidebar | {{Plugin Sidebar | | ||
manufacturer=Tektronix | type=7B81P | | |||
summary=Programmable Timebase | | summary=Programmable Timebase | | ||
image=7B81P Front.jpg | | image=7B81P Front.jpg | | ||
Line 6: | Line 6: | ||
introduced=(?) | | introduced=(?) | | ||
discontinued=(?) | | discontinued=(?) | | ||
series= | series=7000-series scopes| | ||
manuals= | manuals= | ||
* ''please add'' [[Category:Manual needed]] | * ''please add'' [[Category:Manual needed]] | ||
}} | }} | ||
The 7B81P was probably designed in 1975. | The '''Tektronix 7B81P''' is a programmable time base plug-in for [[7000-series scopes]] that was probably designed in 1975. | ||
It is composed of a digital board, a trigger board, and a sweep board. | It is composed of a digital board, a trigger board, and a sweep board. | ||
On the digital board, there is a Motorola 6800 microprocessor and six 6820 Peripheral Interface Adapter ICs to provide more I/O pins. | On the digital board, there is a [[Motorola 6800]] microprocessor and six 6820 Peripheral Interface Adapter ICs to provide more I/O pins. | ||
On the trigger board, there is a [[155-0126-00]], a [[155-0109-00]], two AD7511 analog switch ICs, an MC1408 DAC, a CD4053 analog switch, and a couple of opamps. | On the trigger board, there is a [[155-0126-00]], a [[155-0109-00]], two AD7511 analog switch ICs, an MC1408 DAC, a CD4053 analog switch, and a couple of opamps. | ||
The sweep board is mostly discrete and makes use of Tek-made timebase capacitors. | The sweep board is mostly discrete and makes use of Tek-made timebase capacitors. | ||
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7B81P Right Side.jpg | 7B81P Right Side.jpg | ||
</gallery> | </gallery> | ||
{{Custom ICs|7B81P}} | |||
[[Category:7000 series horizontal plugins]] | [[Category:7000 series horizontal plugins]] | ||
[[Category:7000_series_programmable_plugins]] |
Revision as of 06:17, 16 August 2021
The Tektronix 7B81P is a programmable time base plug-in for 7000-series scopes that was probably designed in 1975.
It is composed of a digital board, a trigger board, and a sweep board. On the digital board, there is a Motorola 6800 microprocessor and six 6820 Peripheral Interface Adapter ICs to provide more I/O pins. On the trigger board, there is a 155-0126-00, a 155-0109-00, two AD7511 analog switch ICs, an MC1408 DAC, a CD4053 analog switch, and a couple of opamps.
The sweep board is mostly discrete and makes use of Tek-made timebase capacitors.
Key Specifications
- please add
Pictures
Custom ICs used in the 7B81P
Page | Model | Part nos | Description | Designers | Used in |
---|---|---|---|---|---|
155-0109-00 | M120B | 155-0109-00 • 155-0109-01 | trigger | Gary Vance | 5B25N • 5B31 • 5B40 • 5B42 • 5B44 • 5S14N • 7B50A • 7B53A • 7B80 • 7B85 • 7B87 • 7B81P • 7B90P • 7S14 • 7612D • SC502 • SC503 • SC504 |
155-0126-00 | M121 | 155-0126-00 | trigger source selector and P-P auto amplifier | Art Metz | 7B50A • 7B80 • 7B85 • 7B87 • 7B81P • 7B90P |