English: Diode-transistor logic in a discrete transistor clock. The diodes at A decode 1 of 12 lines to light the seven segment displays to show the hours 1 to 12. The transistors at B drive the decode diodes and displays. The diodes at C trigger one of the 12 pairs of transistors based on the state of the transistor flip-flops at D. Additional diodes in the chain of flip flops allow this to count hours.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.