Technical Details
Brand: TRD
Model:DPA 1
Category:Super High Fidelity
Application:Semi-Pro
Electronics:Solid State
Equalization:IEC
Country of Manufacture:United Kingdom
Release dates:1968 - 1971
Tracks:1/2 Rec/PB
Speeds: 3 3/4, 7 1/2, 15
Max Reel Size("): 7"
Number of heads: 4
Head Composition: Permalloy
Head Configuration: Stacked/Inline
Auto Reverse?:No
Voltage(s): 220-240v
Frequency Response:( 3dB): 30Hz - 18KHz at 15 ips
Wow and Flutter:0.13% at 3¾ ips . 0.08% at 7½ ips. 0.05% at 15 ips
Sound quality rating:5 / 10
Long-term reliability rating: 5/ 10
Additional Details
Description
Derived from the 1966 TRD studio deck, the DPA/1 Stereo was a full logic controlled three motor machine with a maximum reel size of 10½ inches and four speeds (15 ips to 1 7/8 ips).
The inclined front panel housed an all solid-state preamplifier with 600 ohm studio line specification and a PPM meter to BBC specification.
A tape footage counter using a conventional English Numbering Machine counter driven by a drum around which the tape ran allowed more accurate cuing than regular counters of the era. A variable spooling speed control was also fitted.
Additional Info
Inputs & outputs: 600 ohm studio line specification / half-track stereo