Conrad-johnson design CAV45 Руководство пользователя - Страница 7

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acuum Tube Replacement

The CAV45 uses seven vacuum tubes of three different types: one

type 6922 (V1), two type 5965 (V2 and V3), and four type EL34

(V4 through V7). The brands of tubes we supply have been chosen

by first selecting those brands which are known to be most reliable,

then by extensive auditioning of these acceptable brands with the

final choices being made solely on the basis of sonic performance.

We know of no vacuum tubes available which will improve the

sonic performance of your CAV45. We highly recommend that you

purchase replacement tube sets from conrad-johnson design.

We anticipate tube life to accommodate two to three years of

operation without degradation in normal use - if the amplifier is

switched off when not in use. If it is left on at all times, tube life can

be exhausted in a matter of a few months.

The CAV45 has been designed to make tube replacement as

simple as possible. Because the output tubes are individually

biased, replacement tubes need not be matched pairs. No a-c

balance adjustment is necessary. It is necessary to re-bias the

amplifier when the output tubes are replaced. The CAV45 has built

in bias indicators so that no instruments are required to make this

adjustment.

CAV45

Owner's Manual