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A New Balanced Audio Input Circuit for Maximum Common-Mode Rejection in Real World Environments

A New Balanced Audio Input Circuit for Maximum Common-Mode Rejection in Real World Environments

With rare exception, when it comes to audio system performance, the whole is much less than the sum of its parts. When audio components are interconnected to form a system, it usually has far more noise and distortion than would be predicted from test bench measurements on each component.

http://www.jensen-transformers.com/an/ingenaes.pdf

Transformer Secondary Voltage Reduction

Transformer Secondary Voltage Reduction

This page uses bridge rectifiers to reduce the secondary voltage of transformers. The current rating of the bridges should be about 1.5 times the maximum current expected.

http://home.cogeco.ca/~rpaisley4/xACdropper.html

Jensen Transformers Application Schematics

Jensen Transformers Application Schematics

http://www.jensen-transformers.com/apps_sc.html

Transformer Coupled Splitter

Transformer Coupled Splitter

active amplified transformer isolated signal splitter that enables hum-free connection of one guitar to more than one amp as well as having a direct output

http://www.geofex.com/FX_images/splitter.gif

Transformer Shorted Winding Tester

Transformer Shorted Winding Tester

http://www.geofex.com/FX_images/xform_test.gif

Transformerless Power Supply

Transformerless Power Supply

http://www.aaroncake.net/circuits/supply5.htm

Transforms

Transforms

Covers FFTs, Z transforms, and Hilbert transforms.

http://sepwww.stanford.edu/sep/prof/fgdp/c1/paper_html/node1.html

Transistor forms RS-232C digital thermometer

Transistor forms RS-232C digital thermometer

http://www.edn.com/archives/1996/050996/10di3.htm

Transistor meter

Transistor meter

http://www.intio.or.jp/jf10zl/trm.htm

Using multiple transformers to get more high voltage power

Using multiple transformers to get more high voltage power

Like a lot of experimenters, I started with a neon sign transformer as a high voltage source. Common neon sign transformers cost about 80 dollar and put out about 15kV (no load) and around 30 mA shorted, although you can get lower voltages and currents easily.

http://home.earthlink.net/~jimlux/hv/xfrmr1.htm


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