Technical Details
Brand: Roberts
Model:1620
Category:Mid High Fidelity
Application:Consumer
Electronics:Solid State
Country of Manufacture:USA
Release dates:1965 - 1968
Tracks:1/4 Rec/PB+1/2PB
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Voltage(s): 110-120v
Frequency Response:(all 3 dB): 7½ ips: 50Hz - 15kHz
Wow and Flutter:less than 0.2 % at at 7½ ips
Signal-to-Noise Ratio:better than 42dB
Sound quality rating:5 / 10
Long-term reliability rating: 5/ 10
Additional Details
Description
A compact four-track stereo
tape recorder from the Roberts company from around 1965 with two speeds, stereo 5″ x 7″ extended range
speakers, a single motor and single (switchable) VU meter.
This machine utilised valve circuitry in an age when most tape-recorders
were heading in the direction of solid state electronics.
Other features included
a three-digit tape counter, pause control, pre-amp outputs and a maximum reel capacity of 7″.
Speed change was implemented by means of a capstan sleeve.
Price when new (USA) was $199.95
Additional Info
Valve complement: 12AT7 x 2, 6BM8 x 2, 6CA4 / Audio output power: 5 watts per channel / Inputs: high impedance microphone (3mV), radio / phono (150mV) / Speaker(s): two built in 5″ x 7″ speakers / Dimensions: 13¼ x 9¼ x 13¼” (337 x 232 x 337 mm) / Weight: 25 lbs (11.4kg) / quarter-track stereo