NOS Original B11178B Input Transformer for all UREI UA LA-3A, 4-40 Studs. C18

Description

New old stock B11178B Input Transformer for all UREI UA LA-3A, 4-40 Studs. It has two 4-40 threaded mounting studs that are fastened to the base. A datasheet and wiring instructions are included with this item.
This is a bridging input transformer with dual primary windings and a single secondary winding. It can be strapped for 1:5 ratio (as in the LA-3A) or 1:10 ratio. In the 1:5 LA-3A circuit the two primary windings are wired in series and the transformer has 12 db of gain when properly loaded. For other applications the two primary windings can be wired in parallel, giving 18 db of gain at the secondary. The transformer has an electrostatic shield and is well shielded against hum and RFI.
It can also be used as a mic input transformer.
Good condition, never used. Leads are about 2" long. Some minor wear and discoloration from storage, perfect operating condition.
Studio Electronics, Inc. has served the pro audio industry since 1981.  We run one of the best equipped service repair shops in North America, with a vast parts inventory and an extensive library of documentation on all types of audio gear -- from the 1950’s to present day.  We are an authorized service center for several manufacturers, and offer expert service on all kinds of vintage pro audio gear including EMT, AMS, UREI, Pultec, Eventide, API, Neve, and many others.  We’ve installed over 250 studios -- everything from small project studios to large scale projects for firms like Warner Brothers and Disney.  We’re proud of our reputation in the pro audio community.
People always tell us that they love the stories, recording history, and tech info on our web site. If you're interested, please visit us at www.studioelectronics.biz. Thanks for looking!