some old enlarge lens-boards just had aplain hole in them so you needed the threaded ring to fix the lens in to the board
a type of ring counter
either 4 or 8 depending on the type of counter
Applications of prestressed concrete:Used in large diameter concrete pipesUsed in railway sleepersWater tanksPrecast concrete piles to counter tensile stress during transport and erection. used in bridges construction
A two-bit binary counter is a digital circuit that counts in binary from 00 to 11, representing decimal values 0 to 3. It uses two flip-flops to store the two bits, where each flip-flop represents one bit of the counter. The counter increments by one with each clock pulse, cycling through the states 00, 01, 10, and 11. This type of counter can be used in various applications, such as in digital clocks and frequency dividers.
You have to reform your question to be an actual question before someone can answer it. A counter circuit's output depends on the previous state when it is 'clocked'. So the output might be something like 0010, when the previous output was 0100. Then the next one after 0010 could be 0001. Or it might count the other way, depending on how configured.
Ring counter A ring counter is a shift register (a cascade connection of flip-flops) with the output of the last one connected to the input of the first, that is, in a ring. Typically a pattern consisting of a single 1 bit is circulated, so the state repeats every N clock cycles if N flip-flops are used. It can be used as a cycle counter of N states. Johnson counter A Johnson counter (or switchtail ring counter, twisted-ring counter, walking-ring counter, or Moebius counter) is a modified ring counter, where the output from the last stage is inverted and fed back as input to the first stage. A pattern of bits equal in length to twice the length of the shift register thus circulates indefinitely. These counters find specialist applications, including those similar to the decade counter, digital to analog conversion, etc
ring counter is self decoding...
ring counter is self decoding...
Johnson counter is a ring counter, which is a type of counter composed of a circular shift register. Johnson counter provides many shift registers and ring counters.
some old enlarge lens-boards just had aplain hole in them so you needed the threaded ring to fix the lens in to the board
a type of ring counter
10
Binary Counter
RING COUNTER as opposed to grey codes
clock signal divider
either 4 or 8 depending on the type of counter
counter clock wise.