Teletronix LA2A (Vintage) Tube Opto Compressor Circa 1967

Teletronix LA2A (Vintage) Tube Opto Compressor circa 1967

The UREI version, a.k.a. “Silverface”
Serial Number 1517 circa 1967

• Note: Teletronix patent acquired in 1967 along with the broadcast division of Babcock Electronics by Studio Electronics Corporation (later renamed United Recording Electronics Industries – UREI)
• Faceplate: Brushed aluminum with red “Teletronix” logo (brushed aluminum with black “UREI” logo starting around number 1750)
• Company Nameplate: A metallic sticker on the rear panel; says “Teletronix | United Recording | Electronics Industries | North Hollywood, Calif. | Made in U.S.A.” with unit Type and Serial No. on lower portion (later units had a silver metallic sticker on the rear panel; says “United Recording Electronics Industries” in blue, with a blue UREI logo, along with Model and Serial No., starting around number 1750
• Type / Serial No. Plate: No longer separate
• Rear Panel Graphics: Screen printed
• Compress/Limit Switch: On rear panel of unit
• Input Transformer: UTC HA-100X (Input Transformer is changed to UTC A-10 starting around number 1640)
• Electro-Optical attenuator cell: T4A (opto cell is changed to T4B starting around number 1640)
• Safety Switch on front hinged panel: None