Haufe
2xV264/Neumann BV33 Stereo Moving Coil (MC) Step Up Transformer
Condition: Tested and in perfect working Condition.
But, have some cosmetic wear because the item has been used.
Originally, Neumann BV-33 Step Up Input Transformer
was used in Neuman WV2 and WV2a preamplifier until 60’s. Later, the transformer
BV-33 were produced for Neumann by Haufe with Type number 2 x V264.
This input transformer is the new edition of the 2 x
V264 produced by Haufe, which consisting of two identical matched MC
Transformer installed in one Mu-Metal Screening Can. The transformer comes with
metal case completed with RCA-Jack and ready to use.
This
MC transformer is perfectly suitable for operation with all MC cartridges.
Made
in Germany.
Technical
data:
Standard
ratio 1 : 50 with open output (no loaded)
Actual ratio 1:40 with load resistor about 100 kOhm - as in the originally
circuit of Neumann WV2 pre-amplifier
Actual ratio 1:30 with load resistor about 50 kOhm - as standard in each MM-
phono equalizer preamplifier
Actual step-rate is 30 dB in case a operation with MM phono pre-amplifier, with
47-50 kOhm load/input resistance
Input DC resistance : 8 ohm
Suitable for use with all cartridges with output impedance from 3 to 100 ohm
Recommended especially for low impedance cartridges with an output impedance
about 3 to 40 Ohm- Output DC resistance: 4,4 kOhm- Output load resistance: 50 -
100 kOhm
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