The record contains 36 TX-0 plug in bottle transistor modules. The modules are made up of 2 parts. There is a five pin socket with 3 transistors soldered to the circuit side of the socket. There is also a clear plastic bottle that screws onto the socket and encapsulates the soldered components. The top of the bottle is painted green. All of the bottles have a paper label with an “A-#” number. The numbers present on the bottles are 1, 2, 4, 5, 8, 9, 10, 11, 13, 14, 15, 17, 18, 25, 31, 32, 34, 35, 37, 40, 42, 44, 57, 65, 84, 86, 87, 88, 89, 90, 91, 93, 98, 103, 104, 106.