Category:Vintage (Pre 1960, some recorders were so good, they belong in above categories)
Country of Manufacture:USA
Release dates:1955 - 1958
Speeds: 3 3/4, 7 1/2, 15
Max Reel Size("): 10.5"
Number of heads: 3
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:(all 3 dB): 15 ips: 50Hz - 15kHz
Wow and Flutter:less than 0.1 % at 7½ ips
Sound quality rating:7 / 10
Long-term reliability rating: 7 / 10
A professional broadcast recorder with single-track erase and record heads and dual-track playback
head, thus playing both dual and single track tapes. The performance was much the same as the 20/20 model.
Three motors were employed including a new improved hysteresis synchronous direct drive type giving a timing accuracy of better than 99.8%.
The preamplifier section contained a two-channel microphone and line mixer with a standard broadcast VU meter. A unique feature was the AB test fader which permitted the user to monitor
either the incoming signal from the microphone or line input, or a mixture of the two – or to monitor off the playback head after recording.
Rewind speed: 2,400 feet per minute / Inputs: 1 microphone 1 line per channel / dual or binaural