PLT-1
MOVING COIL CARTRIDGE STEP UP TRANSFORMER

PLT-1 is a step up transformer for MC cartridges. It is suitable for MC cartridge of an impedance 10 ohm and a 40 ohm.
PLT-1 has a good frequency characteristic and high external noise exclusion capability by 78% Nickel permalloy L type core and balance structure winding.


The photograph left is the appearance of PLT-1. The photograph right is the transformer dedicated in the case.

Feature

Product specification

Type MOVING COIL CARTRIDGE STEP UP TRANSFORMER
Ratio Primary             : 1+1
Secondary         : 24
Impedance Primary            :  10 ohm + 10 ohm
Secondary         :  5760 ohm
Frequency bandwidth Primary parallel (10ohm)   18Hz to 105KHz -1dB
Primary series (40ohm)    20Hz to 100KHz -1dB
Primary inductance Primary parallel (10ohm)   72mH
Primary series (40ohm)    290mH
Secondary inductance 50H (120Hz, 50mV)
Primary DC resistance Primary parallel   0.4ohm
Primary series    1.6ohm
Secondary DC resistance 250ohm
Maximum Primary voltage 100mV
Primary DC current Improper, the transformer only for AC signal
Maximum voltage between primary and secondary 100VAC
Core 78% Nickel permalloy L type
Connections Lead wires
Dimensions and weight W:32mm, D:32mm, H:30mm 78g
Price US$72, or 58Euro (excluding tax & shipping)

Primary inductance and Ratio

Primary impedance and a ratio can be chosen by the wire connection of 2 sets of primary winding.

Primary inductance Ratio The example of a Phono cartridge
Primary parallel 10ohm 1:24 ortofon MC-10,MC-20,MC-30,SPU, etc.
Primary series 40ohm 1:12 DENON DL-103, Audiotechnica AT-33, etc.

Mounting and overall dimensions

Characteristic

Primary parallel, Inductance 10ohm, Ratio 1:24, input 0.1mV




Primary series, Inductance 40ohm, Ratio 1:12, input 0.1mV


Ordering

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