Specifications

1 2 AT7 (V3) FIRST STAGE AMPLIFICATION TUBE
The first stage of amplification in the amplifier section of
the Integrated 1 is achieved through the use of this dual
triode, amplifying both channels, one per triode section.
The 12AT7 may be replaced with the ECC81, E81CC,
ECC801S, 6201, CV4024or M8162 tube.
12AU7 (LV2 & V2) DRIVER TUBES
These tubes split the phase of the signal and drive the
push/pull pairs of power tubes. The 12AU7 tubes may be
replaced with matched pairs of ECC82, E82CC, ECC802S,
5814A, 6189, CV4003 or M8136.
EL84 (LV4,5,6,7 & V4,5,6,7) POWER TUBES
These tubes provide the last stage of amplification, set up
in push/pull pairs (4 tubes per channel, two per phase).
The EL84 tubes use a non-adjustable fixed biasing
scheme - meaning these power tubes do not require
manual bias adjustment by the user. If one EL84 should
fail, the entire channel (V4 through V7 or LV4 through LV7)
should be replaced with a matched quad set for best per-
formance. The EL84 may be replaced with the EL84M,
6BQ5 or 7189 power pentode tube.
The entire power amplifier section (First Stage to Power
Stage) provides an additional 28 db of gain.
LV1
V1
12AU7
LV2
V2
V3
12AU7
12AU7
12AT7
EL84
LV4
LV5
LV6
LV7
V4
V5
V6
V7
Optional
Phono
Stage
Module
Location