370 - Replacement Recorder Electronics

THIS PRODUCT IS NO LONGER IN PRODUCTION

The Inovonics 370 is a basic, two-speed replacement record/reproduce electronics package for updating older professional studio tape recorders.

The 370 is directly pin-compatible with earlier Ampex machines (300, 350, 351, AG300 and AG440) and adaptable to many others

Features


  • Sufficient erase, bias and signal headroom for high-coercivity tapes.

  • Two units plug together for one stereo operation.

  • All controls are "up front" for east setup; calibration adjustments are stable, multi-turn pots.

  • Entire electronics assembly unplugs from the front for ease in servicing; all components are standard, "off the shelf" available parts.

Product Image

Specifications


Frequency Response (in Hz)

  • 15ips ±2dB / 25-25k

  • 7.5ips ±2dB / 20-15k

  • 3.75ips ±3dB / 20-8k

Signal-to-Noise Ratio (in dB)

  • 15ips/OVERALL (u’wtd -66/ wtd -74)STANDBY (u’wtd -75/ wtd -83)

  • 7.5ips/OVERALL (u’wtd -67/ wtd -74)STANDBY (u’wtd -75/wtd -83)

  • 3.75ips/OVERALL (u’wtd -63/ wtd -70)STANDBY (u’wtd -70/wtd -77)

Equalization

3-3/4 - 7-1/2 or 7-1/2- 15ips speed pairs; NAB equalization, user-changeable to IEC.

Erasure

75dB erasure of 500Hz signal recorded 12dB above Op level. Erase/bias frequency, 125kHz.

Head Impedance Range

  • Erase: 0.2-2.0mH

  • Record: 3-15mH

  • Reproduce: 3mH-1H

Line Input

  • Sensitivity: -20 to +8dBm

  • Impedance: 10K, unbalanced (transformer optional)

Line Output

Balanced, transformer-isolated; may be adjusted for nominal line levels between +4 and +10dBm. Clipping level, +24dBm into 600-Ohm load.

Power Requirement

105 - 130 VAC (230V available) 50/60Hz, .3A (plus transport)

Size and Weight

3-1/2” x 19” x 7”; 121bs.