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* [http://w140.com/tek_6r1a_notes_ocr.pdf Tektronix 6R1A Notes (PDF)] | * [http://w140.com/tek_6r1a_notes_ocr.pdf Tektronix 6R1A Notes (PDF)] | ||
}} | }} | ||
The '''Tektronix Type 6R1A''' is a plug-in for the [[567]] oscilloscope. | The '''Tektronix Type 6R1A''' is a plug-in for the [[567]] oscilloscope. | ||
The 6R1A provides digital readout of time and voltage measurements | It replaced the [[6R1]]. | ||
on waveforms. | The 6R1A provides digital readout of time and voltage measurements on waveforms. | ||
The 6R1A is a counter and a comparator. | The 6R1A (and the 567 in general) is oriented toward sampling measurements. | ||
are used as a ramp-compare ADC. | The 6R1A is a counter and a comparator. | ||
To digitize analog voltages, the counter and comparator are used as a ramp-compare ADC. | |||
Card Q (Voltmeter) contains a 1 MHz crystal oscillator. | |||
The counters (Card A) are made of flip-flops made of [[2N1754]] Germanium PNP transistors. | The counters (Card A) are made of flip-flops made of [[2N1754]] Germanium PNP transistors. | ||
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trace. In the 6R1A, the horizontal position of the 0% zone can be set arbitrarily. | trace. In the 6R1A, the horizontal position of the 0% zone can be set arbitrarily. | ||
Internally, the 6R1A differs from the 6R1 in how its functions are implemented. | Internally, the 6R1A differs from the 6R1 in how its functions are implemented. | ||
6R1 uses about seven tunnel diodes while the 6R1A uses only two tunnel diodes. | The 6R1 uses about seven tunnel diodes while the 6R1A uses only two tunnel diodes. | ||
6R1 uses several Nuvistor tubes. | The 6R1 uses several Nuvistor tubes. | ||
Take for example the front end of the SIGNAL COMPARATOR board. | In the 6R1A many tubes were replaced by transistors. | ||
[[7586]] Nuvistor triodes. | Take for example the front end of the SIGNAL COMPARATOR board. | ||
In the 6R1 it uses two [[7586]] Nuvistor triodes. | |||
In the 6R1A it is two NPN transistors. | |||
The digital display of the Tektronix 6R1 is composed of four [[Burroughs B5092]] Nixie | The digital display of the Tektronix 6R1 is composed of four [[Burroughs B5092]] Nixie | ||
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==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
6r1a_front.JPG|Front | |||
6r1a_left.JPG|Left | |||
6r1a_right.JPG|Right | |||
6r1a_top.JPG|Top | |||
6r1a_bottom.JPG|Bottom | |||
6r1a_rear.JPG|Rear | |||
6r1a_card_a.JPG|Card A (counter) | |||
6r1a_card_a_back.JPG|Card A (counter) | |||
6r1a_card_b.JPG|Card B (div 1, 2, 5) | |||
6r1a_card_b_back.JPG|Card B (div by 1, 2, 5) | |||
6r1a_card_f.JPG|Card F (upper-limit no-go) | |||
6r1a_card_f_back.JPG|Card F (upper-limit no-go) | |||
6r1a_card_g.JPG|Card G (lower-limit no-go) | |||
6r1a_card_g_back.JPG|Card G (lower-limit no-go) | |||
6r1a_card_h.JPG|Card H (limit light driver) | |||
6r1a_card_h_back.JPG|Card H (limit light driver) | |||
6r1a_card_i.JPG|Card I (div by 10) | |||
6r1a_card_i_back.JPG|Card I (div by 10) | |||
6r1a_card_j.JPG|Card J (analog display) | |||
6r1a_card_j_back.JPG|Card J (analog display) | |||
6r1a_card_m.JPG|Card M (master gate) | |||
6r1a_card_m_back.JPG|Card M (master gate) | |||
6r1a_card_n.JPG|Card N (signal comparator) | |||
6r1a_card_n_back.JPG|Card N (signal comparator) | |||
6r1a_card_o.JPG|Card O (0% zone) | |||
6r1a_card_o_back.JPG|Card O (0% zone) | |||
6r1a_card_p.JPG|Card P (memory) | |||
6r1a_card_p_back.JPG|Card P (memory) | |||
6r1a_card_q.JPG|Card Q (voltmeter) | |||
6r1a_card_q_back.JPG|Card Q (voltmeter) | |||
6r1a_rear_connector_inside.JPG|Rear Connector | |||
6r1a connectors to indicator unit.png|Connectors to Indicator Unit | |||
6r1a plug-in card connectors.png|Plug-in Card Connectors | |||
6r1a signal comparator schem.png|Signal Comparator | |||
6r1a master gate schem.png|Master Gate | |||
6r1a voltmeter schem.png|Voltmeter | |||
6r1a lower limit no-go schem.png|Lower Limit No-Go | |||
6r1a upper limit no-go schem.png|Upper Limit No-Go | |||
6r1a limit light driver schem.png|Limit Light Driver | |||
6r1a divide by 10.png|Divide By 10 | |||
6r1a divide 1 2 5 schem.png|Divide By 1, 2, 5 | |||
6r1a counter schem.png|Counter | |||
6r1a analog display schem.png|Analog Display | |||
6r1a 0 percent zone schem.png|0 Percent Zone | |||
6r1a 0 and 100 memories schem.png|0 and 100 Percent Memories | |||
6r1a external readout connector j31.png|External Readout Connector J31 | |||
6r1a external programming connector j34.png|External Programming Connector J34 | |||
Tek_012-067_012-068_1964_cat.jpg|012-067_and 012-068 Extender Cards for Maintenance | |||
</gallery> | </gallery> | ||
[[Category:560 series plugins]] | [[Category:560 series plugins]] |