ZK-140 T reel-to-reel tape recorder

The ZK-140 T portable reel-to-reel tape recorder is a four-track mono tape recorder with a single tape speed, designed for the playback and recording of sounds. It is one of many models of tape recorders in the ZK-100 series. It was launched at a public presentation of the two-track ZK-120 tape recorder at the Poznań International Fair in 1968, where the device met with huge public interest. Soon afterwards, work on the ZK-140 began, followed swiftly by the ZK-140 T. The devices in the ZK series use a licence from the Grundig company of Germany. The early models used vacuum tubes (ZK-120, ZK-140, ZK-145) but that solution became obsolete, due to changes in audio equipment production standards, and was replaced in the 1960s with a transistor-based electrical circuit (hence the letter T). Manufacturer: Zakłady Radiowe im. Marcina Kasprzaka, also as Unitra ZRK, 1980s Inv. No.: MIM701/V-177 Model prepared on the basis of photogrammetric measurements Licence: CC BY-NC-SA