Grundig TS-340
Almost nothing is documented about the Grundig TS-340. The model number does not appear in the period equipment directories, reviews, or technical literature held in this archive. The TS-340 may have been a tape recorder or radio made during Grundig's active years in consumer audio, but no contemporary source has been found to confirm its type, specifications, or release date.
Even the product category is uncertain. The similar designation "TK340" shows up in period reviews as a quarter-track stereo tape recorder with built-in amplifiers and side-facing speakers. It is rated at 0.1% wow and flutter at 7½ ips, with frequency response of 40 Hz to 12 kHz at that speed (Studio Sound (April 1967, p.43)). No archival evidence connects the TS-340 to that machine. It may have been a related export variant, an earlier or later revision, or a completely different product.
Until a manual, advertisement, or review turns up, the Grundig TS-340 has to be recorded as a model whose identity and specifications are effectively lost. Anyone with documentation or a surviving example is encouraged to share it.
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