Magnum is using a Nakamichi Dragon cassette deck for his dictation, but the Dragon does not have microphone inputs. The microphone he is using is plugged into the headphone output jack.
Stacy states that a bank can give an exemption of a CTR (Currency Transaction Report) to whoever it wants to. This is untrue. CTRs are required by the federal government on any cash transactions over $10,000. There are no exemptions as that would be breaking federal law. While this is true NOW, it was not true back in 1984 when this show was created.
Ted, Stacy, and Magnum should have realized that any money laundering issues involved with a bank would fall under the jurisdiction of the FBI, not the Treasury Department.