Woodward Schumacher 12692 Voice of Music Vintage EL84 Output Transformer OT Tested 460:1 170:1 1320:1 Tube Amp Audio 1961

One (1) fully 1.00 kHz AC tested and guaranteed vintage tube amp output transformer. AC testing using an oscilloscope allows us to find and reject transformers with noisy outputs, which a simple resistance or continuity test will not reveal. Made in USA in 1961 by Woodward-Schumacher for Voice of Music. IEA date code may vary, since this is a bulk listing of the OEM specification. Please offer $2 extra if you'd like us to poke through inventory to select a certain manufacturer or year. Otherwise, we'll grab the first one on the shelf. A typical IEA code for this model is 606148. Weighs 0 lbs 11 oz. Center-to-center bolt spacings 60 mm, and height of casing is 42 mm. Quantity sometimes available - please enquire.
This transformer was orignally used to connect a EL84 output tube to a speaker.

Please see the image of an original schematic using this model, for one possible application!

Using a 12V_pp, 1.00 kHz input to the primary coil, we have verified these connections for this vintage transformer:

The turns ratio (pri:sec) is 21:1, leading to an impedance ratio for the main secondary coil of 460:1.This model has multiple secondary taps. Additional impedance ratios of 170:1 (via the black-green connections), and 1320:1 (via the black-yellow connections), and are available as options.

Serial number O-1005.