PACO ST-45
Little is documented about the PACO ST-45. The only record is a period listing that places it in PACO's kit lineup as the Model ST-45 Stereo Tuner. The published FM specs are 2 µV sensitivity for 30 dB of quieting, harmonic distortion under 1%, and bandwidth over 200 kHz. The same listing cites dual limiters and a Foster-Seeley detector, which was the serious FM detector design of its day.
PACO was the kit division of Precision Apparatus Co., Inc. Period advertising described the parent as a maker of laboratory electronic instruments for over a quarter century. That fits the spec-sheet tone of the ST-45 listing. Beyond that, almost nothing has survived. There are no production years, no confirmed original price, and no editorial review beyond the directory-style mention. Pages from the same era also show sibling PACO kits such as the SA-40 amplifier and the ST-35 FM tuner, but the ST-45's exact place in that lineup is unrecorded. A manual or catalog page for the ST-45 would be a useful addition to the archive.
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