TEAC RD-111T Chart Recorder

TEAC RD-111T Chart Recorder is a vintage TEAC data recorder from the late 1980s, designed to log measurement data in PCM format onto magnetic media for archival storage and later analysis. It sits in TEAC’s RD series alongside the RD-101T and is documented in TEAC’s literature with an English-language Instruction Manual covering both RD-101T and RD-111T, confirming official usage guidance. TEAC’s data-recorder materials and end-of-sale notices show the RD-111T as a legacy model from that era, used to capture and store experimental or process data for review after the fact, a workflow common in laboratories and industrial monitoring that relied on PCM-recorded data before disk-based logging became mainstream. Today, the RD-111T appears in vintage equipment listings and specialty catalogs, where it is of interest to collectors and facilities maintaining older measurement systems that require authentic TEAC PCM data-recording hardware.