Grundig TK-2200

Not much is documented about the Grundig TK-2200. The record shows a battery-powered mono tape recorder aimed at portable use. Grundig's own advertising tagline called it "perfect recording playback anywhere." A period review in Studio-Sound (December 1968, p.49) published the manufacturer's specification alongside bench measurements. The review also included a wow-and-flutter graph and an acoustic response measurement. It noted that the tiny cabinet naturally curtailed bass, though the output was reasonably level from 400 Hz to 8 kHz.

Known specifications from the Studio-Sound listing:

Track format: 1-track (half-track mono)
Tape speed: 9.5 cm/s
Frequency range: 40 Hz – 15 kHz
Signal-to-noise ratio: 47 dB
Wow and flutter: ±0.25%
Power supply: Six batteries (type unspecified)

Available sources don't record the production years or the original selling price. The TK-2200 sits in Grundig's TK series of cassette and reel-to-reel decks, but its exact place in the lineup is unclear, and so is how long it stayed on the market.