Tube Tech ME 1B User Manual

1

DESCRIPTION

TUBE-TECH ME 1B

mid equalizer

The

TUBE-TECH program equalizer ME 1A

amplifier to restore the loss from the filter.
The filter has a low frequency peak section with 5 selective frequencies, a mid frequency dip
section with 11 selective frequencies, and a high frequency peak section with 5 selective
frequencies.

The filter is placed directly after the input transformer, therefore eliminating noise from the
amplifier when boosting either low- or high frequencies.

The amplifier consists of two tubes (valves) in push-pull configuration (one ECC 83 as the
pre-amp, and one ECC 82 as the output stage), and an output transformer.

Both input and output are balanced (600) and fully floating.
The in/out key switches the equalization in and out without clicks and changes in level, while the

amplifier remain in the signal path.

contains a passive filter and a tube (valve) based

(040319)

LYDKRAFT ApS

Mose Allé 20, DK 2610 Rødovre

Denmark

2

CONTROLS:

LOW FREQUENCY

SECTION:

The low frequency section consists of a

LOW FREQUENCY

switch located to the left.

PEAK

control and a

PEAK: The

LOW
FREQUENCY: The

MID FREQUENCY
SECTION:

DIP: The

MID
FREQUENCY: The

PEAK

control is continuously variable from 0 dB to +10 dB.

It is of the bell type.

LOW FREQUENCY

switch determines at which
frequency the maximum peaking is obtained.
There is a choice of 5 frequencies:

0.2, 0.3, 0.5, 0.7 and 1 kHz.

The mid frequency section consists of a

MID FREQUENCY

-control is continuously variable from 0 dB to -10 dB.

DIP

switch located to the left.

DIP

It is of the bell type.

MID FREQUENCY

switch determines at which
frequency the maximum peaking is obtained.
There is a choice of 11 frequencies:

0.2, 0.3, 0.5, 0.7, 1, 1.5, 2, 3, 4, 5 and 7 kHz.

control and a

(050504)

HIGH FREQUENCY
SECTION:

PEAK: The

HIGH
FREQUENCY: The

IN/OUT:

The high frequency section consists of a

HIGH FREQUENCY

PEAK

-control is continuously variable from 0 dB to +8 dB.

switch located to the left.

PEAK

control and a

It is of the bell type.

HIGH FREQUENCY

switch determines at which
frequency the maximum peaking is obtained.
There is a choice of 5 frequencies:

1.5, 2, 3, 4 and 5 kHz.

The in/out key switches the filter in and out of the signal path.
The amplifier remains in the circuit.

(040319)

LYDKRAFT ApS

Mose Allé 20, DK2610 Rødovre

Denmark