Choke - One Electron, Audio, PRC-2, for Shunt Feed SE Output

One Electron
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Choke - One Electron, Audio, PRC-2, for Shunt Feed SE Output

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The PRC-2 audio choke from One Electron was designed for shunt-feed single-ended output applications, but is also useful where quality inductive loads are needed or as high-quality filter chokes. It features a paper bobbin. It has two identical windings allowing series and parallel combinations. It is not recommended for use as a transformer.



DC Current



parallel 12 H 150 mA 76 Ω 2.3K Ω
series 48 H 75 mA 304 Ω 9K Ω

The table shows the maximum recommended load impedance when used as a shunt-feed choke. As with traditional class-A triode amplifiers, the driving impedance is about ½ the load impedance. The recommended load impedances are based on a -1dB response at 20 Hz; for better low frequency response, use a choke with higher recommended load (higher inductance).

Item ID:
One Electron
Product Measurements
D.C. Current, parallel150 mA
D.C. Current, series75 mA
Impedance, parallel2.3 kΩ
Impedance, series9 kΩ
Inductance, parallel12 H
Inductance, series48 H
Item Height3.38 in.
Item Length2.83 in.
Item Width4.25 in.
Mounting Hole Center to Center A2.25 in.
Mounting Hole Center to Center B2.875 in.
Mounting Hole Diameter0.187 in.
Resistance, parallel76 Ω
Resistance, series304 Ω
Packaging Information
Packaging Dimensions4.6 in. × 3.5 in. × 3 in.
Weight (Packaging)5.3 lbs.

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Questions and Answers

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Asked by Anonymous on January 10th, 2017.
Matt H
January 10th, 2017
Hi, shunt feed is a type of output configuration more commonly know as "parafeed." Please contact One Electron directly for technical information and support.
Asked by Anonymous on October 10th, 2017.
Matt H
October 10th, 2017
Unfortunately we do not have any more specs on this choke.

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