10Ω: 2K8 Permalloy MC phono transformer LP vinyl MC phono boost transformer thre

Product Description

Features:

10Ω: 2K8 Permalloy MC phono transformer, LP vinyl MC phono step-up transformer. Suitable for 3Ω to 100Ω MC cartridges.

Broadband response: 20Hz ～ 85KHz -0.6DB

MC phono step-up transformer is added to the front of the MM phono amplifier to become an MC phono amplifier. There are a variety of MM phono amplifier boards in this part. .

LP records are attenuated at low frequencies and pre-emphasized at high frequencies. They need to be compensated according to the RIAA equalization curve during playback. Advanced record players use MC moving coil cartridges, whose impedance is only a few ohms to a dozen ohms, and the output voltage Only 0.05 ~ 0.5mV, need to boost the cattle plus pre-amplification.

The primary impedance of the booster transformer is 3 to 5 times the output impedance of the cartridge, which is more reasonable. If the impedance of the MC cartridge is 10 ohms, the primary impedance of the transformer is 30 to 50 ohms, the transformation ratio is set to 1:10, and the impedance ratio is 40: 3600. In order to avoid the interference of the electromagnetic field on the transformer, it is necessary to use double-layer or multi-layer isolation shielding of permalloy sheet and aluminum or copper to prevent interference.

The imported material with 85% nickel content and high permeability nickel material is punched and sheared, placed on a high-speed punching machine and punched with a special tungsten steel mold, and placed in a hydrogen furnace after a complex heat treatment process, which does not rust. Corrosion resistance can be used for a long time.

Transformer model: 10Ω: 2K8
The stage impedance is 10Ω and the secondary impedance is 2K8. The turns ratio is 16.7, and the boost is 16.7 times.
Frequency response: R = 10Ω
20Hz ～ 85KHz -0.6DB
100Hz ～ 60KHz -0.2DB
Transformer primary, copper resistance is about 18.8 Euro, inductance is about 3.5 to 5.5H.
The secondary pole copper resistance is about 1095 Euro, and the inductance is about 550H to 920H.

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Condition

Brand New

Shipping

This item is shipped directly from our supplier in China with tracking.