Grundig TKI-45 (1968)
Little is documented about the Grundig TKI-45 outside a single British hi-fi monthly. What the record shows comes from Studio-Sound (August 1968, p.37), where reviewer Mr. Tutchings published the manufacturer's specification along with a measured wow-and-flutter figure.
The TKI-45 was a single-track (mono) tape recorder running at 9.5 cm/s, with auto/manual recording levels, a claimed frequency range of 40 Hz–12 kHz, a signal-to-noise ratio of 50 dB, and capacity for 14.5 cm spools. Input sensitivity was rated at 2–100 mV into 1.5 MΩ; outputs were 500 mV at 15 kΩ on line and 2.5 W at 5 Ω for speaker. It measured 39 × 29 × 18 cm and weighed 19 lb. The price was £53 11s. including purchase tax. The review's wow-and-flutter chart at 9.5 cm/s showed figures around 0.18–0.22%.
A follow-up in Studio-Sound (October 1968, p.22) referred back to Mr. Tutchings' review. It opened a servicing article with the TKI-45's auto/manual single-track circuitry as a starting point, but the article's full circuit diagram was actually of the related TK145. Beyond these two mentions, no manuals, advertisements, or further period coverage have surfaced in this archive.
Known from the August 1968 review:
- Type: 1-track (mono) auto/manual tape recorder
- Tape speed: 9.5 cm/s
- Frequency range: 40 Hz–12 kHz
- Signal-to-noise ratio: 50 dB
- Spool capacity: 14.5 cm
- Input: 2–100 mV at 1.5 MΩ
- Outputs: 500 mV at 15 kΩ (line); 2.5 W at 5 Ω (speaker)
- Dimensions: 39 × 29 × 18 cm; weight 19 lb
- Price: £53 11s. including purchase tax
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