Klangfilm emt t42 mc step-up transformer stereo

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Klangfilm emt t42 mc step-up transformer stereo

Klangfilm emt t42 mc step-up transformer stereo

Original Klangfilm T42 Stereo MC step-up transformer
Perfect matched and assembled

This is a matched pair of vintage Klangfilm step up transformers T42/75/1 made in WEST-GERMANY accurately assembled in a nice light grew aluminum case.
Both transformers are in perfect working order and tested with an Ortofon SPU and Ortofon SL15 cartridge.

This is a real MATCHED PAIR:
Input DC resistance / secondary DC resistance :
T42 left -> 3.33 Ohms / 2649 Ohms
T42 right ->3.34 Ohms / 2652 Ohms
(measured with a calibrated Gossen Metrawatt multi-meter)

This SUT will best matching with low impedance MC cartridges like EMT TSD 15, Ortofon SPU, Suppex SD-900 or Neumann TA.
Of course, any other low to very low impedance moving coil system will match properly.
To prevent potential hum problems each channel can be connected/disconnected from ground by a small internal switch.

Specifications:
2 x Haufe mu-shielded transformer Type T-42/75/1
Input impedance: 10-100 Ohms
Output impedance: 47 K (or higher)
Housing: light grew powder-coated aluminum case + golden plated Neutrik RCA (cinch) terminals + ground connection
Size: 130 mm x 70 mm x 55 mm
Weight: 372 gram

depending on the output load resistance you will measure following results of the input impedance and step ratio:
10 kOhm output load resistance: Input impedance 5,4 Ohm -> Step ratio -> 1:25
22 kOhm output load resistance: Input impedance 8 Ohm -> Step ratio -> 1:38
47 kOhm output load resistance: Input impedance 12 Ohm -> Step ratio -> 1:50
100 kOhm output load resistance: Input impedance 20 Ohm -> Step ratio -> 1:60 (universally option)

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