ITC Series 2 Audio Cartridge Machines
ITC's Series 2 Audio Tape Cartridge machines configured as recorders or reproducers were available in stereo or mono versions.
Standard features included:
Recorders included Dolby HX Pro Headroom Extension and high-resolution LED bargraph metering which was selectable for VU or peak ballistics and monitoring of play, record, cue or bias signals. The motor is selectable for command or continuous run at a standard speed of 7.5 IPS (19 cm/s) or optionally at 3.75 IPS (9.5 cm/s) or 15 lPS (38 cm/s).
ITC's Series 2 cart machines are designed specifically for low internal operating temperature and are housed in a one-piece, unventilated outer case to prevent contamination from dust, dirt, liquid spills or other foreign matter which commonly decrease the efficiency and life expectancy of similar units. The motor is a DC, crystal referenced unit with PLL servo control. A unique cam latching solenoid mechanism with Teflon-coated plunger ensures constant and positive pressure roller contact. The robust tape transport system is based on a precision-machined, nickel-plated cast aluminum deck and features Kevlar tape guides and an improved cartridge hold-down mechanism.
The legendary dependability of these products is enhanced in Series 2 by the extensive use of microprocessor logic and surface-mount devices. These components, widely used in the majority of modem high-technology products, have been proven to significantly increase reliability and functionality while reducing equipment cost.
ITC's Series 2 provides reliable and continuous service, while requiring only a minimum of maintenance and alignment. When maintenance is required, the entire internal chassis slides out of the outer case, providing easy access to heads, pressure roller, motor, power supply and all internal printed circuit assemblies. The cleaning mode allows the pressure roller to conveniently be brought into operating position. Micro-adjust head blocks are referenced to the deck plate and have independently locking set screws for long-term stability.
All audio alignment settings are adjusted accurately via multi-turn potentiometers. The use of Dolby HX Pro ensures maximum recording quality and elimination of the self-bias/self-erasure effect sometimes exhibited during analog tape recording processes. The motherboard concept of construction facilitates simple PC board removal and exchange, and a universal extender board is available for use with all Series 2 circuit boards.
ITC's Series 2 operates on all standard international mains voltages, from 105 VAC/60 Hz to 264 VAC/50 Hz. The lEC standard mains receptacle meets all applicable international electrical safety standards. An optional universal rack mount permits three Series 2 units to be mounted horizontally in a standard 19-inch equipment rack.
* Referenced to 1 kHz @ 250 nWblm record level, stereo system
Tape Speed Accuracy
Wow and Flutter
Dolby HX Pro Headroom Extension was originated by Bang & Olufsen and was manufactured under license from Dolby Laboratories Licensing Corporation.