The B6A6 is a balanced, three stage amplifier which uses commonly available tube types that do not require special selection or matching. The use of high quality components and the straightforwardness of design, employing only 9 tubes including rectifier and voltage regulator, insure a maximum degree of reliability. Fewer tubes, fewer types (only 6) and fewer stages of simplified design result in lower tube costs, low initial cost and reduced power input requirements.
The B6A6 Limiting Amplifier also incorporates those features which are found in other RCA high quality broadcast audio amplifiers.
The rotary switch (Bal Lim) provided on the front panel also permits selection of a filter with either a single or dual time constant. In the single position the attack time is 0.0006 seconds. In the dual position the recovery time is lengthened to two seconds on sustained peaks.
