7B81P: Difference between revisions
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(Added pictures of A03 prototype unit) |
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7B81P Right Side.jpg | 7B81P Right Side.jpg | ||
</gallery> | </gallery> | ||
==Pictures of Prototype A03== | |||
<gallery> | |||
Tek_7b81p_front.jpg | |||
Tek_7b81p_left.jpg | |||
Tek_7b81p_right.jpg | |||
Tek_7b81p_serial.jpg | |||
Tek_7b81p_detail_sticker_interface.jpg | |||
Tek_7b81p_detail_sticker_eproms.jpg | |||
Tek_7b81p_detail_sticker_programming.jpg | |||
Tek_7b81p_frontpanel.jpg | |||
Tek_7b81p_frontpanel_rear.jpg | |||
Tek_7b81p_switch_front.jpg | |||
Tek_7b81p_switch_rear.jpg | |||
Tek_7b81p_led_front.jpg | |||
Tek_7b81p_led_rear.jpg | |||
Tek_7b81p_trigger_front.jpg | |||
Tek_7b81p_trigger_rear.jpg | |||
Tek_7b81p_sweep_front.jpg | |||
Tek_7b81p_sweep_rear.jpg | |||
Tek_7b81p_programming_front.jpg | |||
Tek_7b81p_programming_rear.jpg | |||
Tek_7b81p_programming_without_sticker.jpg | |||
Tek_7b81p_front_frame.jpg | |||
Tek_7b81p_front_frame_rear.jpg | |||
</gallery> | |||
==Components== | ==Components== |
Revision as of 10:34, 9 March 2024
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
Pictures of Prototype A03