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6R1: Difference between revisions
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are used as a ramp-compare ADC. | are used as a ramp-compare ADC. | ||
The 6R1 | The 6R1 contains digital logic but no integrated circuits. | ||
discrete bipolar transistors, vacuum tubes, and tunnel diodes. Most of the digital signals | Its logic is implemented using discrete bipolar transistors, | ||
within the 6R1 use 0V to represented a "0" and 20V to represent a "1". Flip-flops | vacuum tubes, and tunnel diodes. Most of the digital signals | ||
(bistable multivibrators) are implemented in the 6R1 using the classic cross-coupled | within the 6R1 use 0V to represented a "0" and 20V to represent a "1". | ||
transistor pair. The counter is composed of several of these flip-flop subcircuits, | Flip-flops (bistable multivibrators) are implemented in the 6R1 using | ||
as are various other state machines in the 6R1. All of the active circuitry of the | the classic cross-coupled transistor pair. The counter is composed of | ||
6R1 is on small plug-in printed circuit boards. There are twelve different boards | several of these flip-flop subcircuits, | ||
labeled A through L. The 6R1 contains more than one of some of the boards, seventeen | as are various other state machines in the 6R1. | ||
boards in total. | All of the active circuitry of the 6R1 is on small plug-in printed circuit boards. | ||
There are twelve different boards labeled A through L. | |||
The 6R1 contains more than one of some of the boards, | |||
seventeen boards in total. | |||
*Board A: COUNTER (6R1 has four of these) | *Board A: COUNTER (6R1 has four of these) | ||