MEC-50/100/200

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"Quiet background, more details "
"Compact, very low weight, extreme small size "

Introduction

MEC-50, MEC-100 and MEC-200 come as potted and tested modules. They are intended to either upgrade existing tube amplifiers, or build new. They are not suited as choke input filter nor as active anode load, as they do not store energy.

General Description

Designers Menno Vanderveen and Guido Tent decided for these designs after the positive response of the E-choke, in 2009. MECs typically fill the gap towards medium power amplifiers (MEC-200), smaller power amplifiers (MEC-100) and preamplifiers (50mA) where the E-choke is too big.

MECs replace traditional chokes that generally work quite well, but suffer from serious disadvantages:
• high weight
• big size
• magnetic field radiation that induces hum in the circuit

The MECs effectively solve all these issues, and offer up to 60dB supply ripple reduction

Technical description & manual

See the manuals:
• MEC50 / MEC100 (English)
• MEC50 / MEC100 (Dutch)

Specifications

Electrical MEC-50
• maximum DC output current 50 mA
• maximum input Vdc 800 V
• internal current limit 68 mA
• equivalent inductance 78 H
• maximum voltage drop @ Imax 12 V
• short circuit protection: No
• protected for reverse connection: Yes
• maximum heat production 0,6 W
• minimum capacity C1 27 uF
• optimal capacity C1 = C2 47 uF

Electrical MEC-100
• maximum DC output current 100 mA
• maximum input Vdc 800 V
• internal current limit: no
• equivalent inductance 10 H
• maximum voltage drop @ Imax 9 V
• short circuit protection: No
• protected for reverse connection: Yes
• maximum heat production 0,9 W
• minimum capacity C1 47 uF
• optimal capacity C1 = C2 100 uF

Electrical MEC-200
• maximum DC output current 200 mA
• maximum input Vdc 800 V
• internal current limit: no
• equivalent inductance 10 H
• maximum voltage drop @ Imax 10 V
• short circuit protection: No
• protected for reverse connection: Yes
• maximum heat production 2,0 W
• minimum capacity C1 100 uF
• optimal capacity C1 = C220 uF

Specifications

Mechanical
Module size: 26*15*15 mm (W*L*H)
Hole pitch: 14 mm (symmetrical). All pin diameters 1.0 mm, pin length 9 mm
Mass: 12 gram

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Warrantee

This module is warranted for 5 years, assumed all mounting instructions are followed.

Orders and information

Shop for MEC-50, MEC-100 or MEC-200. OEM customers, please apply for more info.