UTC LS-10X AudioTransformer Low Impedance to Grid Start Price USD 0.99 Current Price USD 317.00 Time Left - Bid Count 10 Buy It Now Price - Reserve Price - Start Time Friday, July 18, 2008 End Time Friday, July 25, 2008 Location Boca Raton, FL See more about 'UTC LS-10X AudioTransformer Low Impedance to Grid' Description The item being offered is a UTC LS-10X audio transformer. Primary impedances are: 50,125,200,250,333,500/600 ohms. Secondary impedance is 120k in two sections.This transformer is rated 20,20,000 cycles. This type is usually found in professional tube audio amplifiers and mixers to connect low impedance sources(mic,tape recorders etc)to high input impedance tube circuits.This transformer is usused,the box shows in has been in storage a long time. I would guess it was made in the 1950's. I have checked the windings for continuity everything seems fine.I will provide a photocopy of the wiring diagrams. Place a Bid!