Tube Tech PE 1C User Manual
1
DESCRIPTION
amp and phase splitter are stabilized and the heaters of both
TUBE-TECH PE 1C
program equalizer
The
TUBE-TECH program equalizer PE 1C
based amplifier to restore the loss from the filter.
The filter has a low frequency boost/attenuate section with 4 selective frequencies, a high
frequency boost section with a variable bandwidth and 10 selective frequencies and a high
frequency attenuation section with 3 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 phase splitter, and one ECC 82 as the output stage), and an output
transformer.
Both input and output are balanced and fully floating.
The in/out key switches the filter in and out without clicks and changes in level, while the
amplifier remain in the signal path.
The power supply for the pretubes (valves) are fed with a stabilized DC voltage.
The whole amplifier (including input and output transformer) and the power supplies are
placed on one PC-board.
contains a passive filter and a tube (valve)
LYDKRAFT ApS
Mose Allé 20, DK2610 Rødovre
(030507)
2
CONTROLS:
LOW FREQUENCY
SECTION:
The low frequency section consists of a
control and a
LOW FREQUENCY
switch located just below.
BOOST
and
ATTEN
uate
BOOST: The
It is of the shelving type.
ATTEN: The
It is of the shelving type.
LOW
FREQUENCY: The
maximum boosting and attenuation is obtained.
There is a choice of 4 frequencies:
20, 30, 60 and 100 Hz.
HIGH FREQUENCY
SECTION:
BOOST
ATTEN
LOW FREQUENCY
control is continuously variable from 0 dB to +14 dB.
uate control is continuously variable from 0 dB to -18 dB.
switch determines at which frequency the
The high frequency section consists of two separate circuits:
1. A high frequency boost section, which contains a
2. A high frequency attenuate section, which consists of a
BOOST SECTION:
BANDWIDTH: The
BROAD
BANDWIDTH
control and a
BANDWIDTH
. It controls the width of the high frequency boost curve.
Mose Allé 20, DK2610 Rødovre
control and a
ATTEN SELECT
HIGH FREQUENCY
switch.
control is continuously variable from
LYDKRAFT ApS
BOOST
switch.
SHARP
control, a
ATTEN
to
(030507)
uate
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