{"product_id":"teletronix-la-2a-leveling-amplifier-revision-1-gray-face-252-vintage","title":"Teletronix LA-2A Leveling Amplifier Revision 1 Gray Face #252 (Vintage)","description":"\u003cp\u003eThe \u003cstrong\u003eTeletronix LA-2A Leveling Amplifier\u003c\/strong\u003e has a long history stretching back over half a century. During that time the company changed hands and the model went through a variety of incarnations. Despite these several changes, the LA-2A has remained one of the most popular tools in the recording studio, beloved by engineers for its program-dependent compression and ease of use. Beautiful for vocals, bass, guitars, overheads, drums, etc. \u003c\/p\u003e  \u003cp\u003eEssentially there are six different versions of the LA-2A, based on various design elements, parts, outward appearance, and parent companies. The six revisions can best be classified as: Revision 1 (the original); Revisions 2A, 2B and 2C (all inter-related in various ways); Reissue 1 and Reissue 2. The first four versions kept consecutive serial numbers, while the two reissues had their own numbering scheme.\u003c\/p\u003e  \u003cp\u003eThe final, seventh version, appeared when Universal Audio was resurrected by Bill Putnam Jr., and the LA-2A made its modern reappearance in the line of \"UA Classics\".\u003c\/p\u003e  \u003cp\u003eBriefly the differences are most easily classified by company ownership: \u003c\/p\u003e\u003col\u003e \u003cli\u003eRevision 1 - the original, produced in 1962 by Teletronix under Jim Lawrence, inventor of the LA-2A.\u003c\/li\u003e \u003cli\u003eRevision 2A - Teletronix patent is acquired by Babcock Electronics\u003c\/li\u003e \u003cli\u003eRevision 2B - Teletronix patent is licensed from Babcock Electronics by Bill Putnam Sr. \/ Studio Electronics\u003c\/li\u003e \u003cli\u003eRevision 2C - Teletronix patent is acquired from Babcock Electronics by Bill Putnam Sr. \/ UREI\u003c\/li\u003e \u003cli\u003eReissue 1 - late 70s reissue by UREI \/ United Recording Electronics Industries\u003c\/li\u003e \u003cli\u003eReissue 2 - late 80s reissue after UREI is acquired by Harman Electronics \/ JBL\u003c\/li\u003e \u003c\/ol\u003e   \u003cp\u003eThis unit is an original gray face version, dubbed Revision 1, with the following features: \u003c\/p\u003e\u003cul\u003e \u003cli\u003eSerial numbers 001-600 (approx.)\u003c\/li\u003e \u003cli\u003eFaceplate is painted grey, with red \"Teletronix Engineering\" logo\u003c\/li\u003e \u003cli\u003eProduced by Teletronix in Pasadena, CA (sometimes labeled Los Angeles, sometimes labeled Sunnyvale)\u003c\/li\u003e \u003cli\u003eType \/ Serial No. on a separate metal plate\u003c\/li\u003e\n\u003cli\u003eAll rear panel graphics are hand stenciled or stamped\u003c\/li\u003e \u003cli\u003eOctal jumper socket located before the UTC HA-100X input transformer for pad\/pre-emphasis modules\u003c\/li\u003e \u003cli\u003eLater units included a variable pre-emphasis filter, R37\u003c\/li\u003e \u003cli\u003eFirst compressor to use photo resistors and luminescent panels to achieve gain reduction - the T4A\u003c\/li\u003e \u003c\/ul\u003e   \u003cp\u003e\u003ca href=\"\/teletronix-la-2a-optical-compressor-limiter\" target=\"_blank\"\u003eClick here to learn more about the history of the Teletronix LA-2A.\u003c\/a\u003e\u003c\/p\u003e","brand":"Teletronix","offers":[{"title":"Default Title","offer_id":44451373219943,"sku":"494868","price":17995.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/teletronix-la-2a-leveling-amplifier-revision-1-gray-face-252-vintage_494868_1.jpg?v=1787096980","url":"https:\/\/vintageking.com\/products\/teletronix-la-2a-leveling-amplifier-revision-1-gray-face-252-vintage","provider":"Vintage King","version":"1.0","type":"link"}