CTR-66 (140-1151) Specifications Faxback Doc. # 8257 AC/DC-Powered Cassette Tape Recorder Tape System:..............................................2-track Monaural Tape Speed:.......................................1 7/8 ips (4.75 cm/sec.) Wow and Flutter (WRMS):...............................................0.2% Signal-to Noise Ratio:...............................................35 dB Recording System:..................................................DC Bias Power Requirements:.............................AC 120V, Four C Batteries, DC 6V with Optional Adapter Alkaline Battery Life:..............................Approximately 12 Hours (Continuous Use Shortens Battery Life) Dimensions:..............................9-5/8 x 5-7/8 x 1-7/8 Inches (HWD (254 mm x 149mm x 48mm) Weight:................................................2 lbs 4 oz (1010 g) (RLR/smc-05/19/94)