Drum

drum is slang for house or flat, normally single person dwelling

1: We’re just nipping over to Nobbys new drum to pick up some records. Looks nice since he fixed it up.

2: Nice drum, a proper bachelors pad.

Tickling the brass

Refers to using a Morse key, normally made of Brass.

He’s a radio amateur and when he uses his Morse key he chuckles “I’m off to tickle the brass”. - Early Morse keys were made of solid brass and Bakelite. When operators would be known for tickling the brass.