Blue Circle B3

Blue Circle BC3 Tube Preamp

Description: Polarity-inverting, single-ended, class-A
triode line-stage preamplifier with dual-mono controls. Tube complement: two
6922. Each channel: Five line-level inputs, one tape input; two main outputs,
one tape output. Maximum output: 25V RMS. Left/right volume-control tracking:
better than 0.2dB. No other specifications given.
BCG3.1 power
supply: Dual 40VA toroidal transformers, Hexfred rectifier diodes,
Cardas internal wiring and DC power interconnect cable, integrated AC power-line
conditioner.
Dimensions: BC3.1 preamp chassis: 17.5" W by
5.375" H by 14.6" D. Weight: 35 lbs. BCG3.1 power supply: 6" W by 5.375" H by
14.6" D. Weight: 16 lbs.