The record contains 12 TX-0 plug in bottle transistor modules. The modules are made up of 2 parts. There is a seven pin socket with 1 transistor, 2 resistors, and 1 diode 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 purple with a red dot. One bottle is not labeled at all and the other is labeled with a paper label that has a handwritten 21 on it. The other 10 bottles have a paper label with an "F-#" number. The numbers present on the labels are 28, 29, 30, 31, 32, 33, 34, 35, 36, and 37.