[BC] processing way back when

[Mark Humphrey]

Not the first limiter, but possibly the first "look-ahead" limiter was
the General Electric BA-5-A, which is shown in my 1947 GE broadcast
audio catalog.

According the the catalog blurb, its initial development was done by
the CBS technical staff, and it included a delay line in the signal
path, to "delay the signal until bias generator circuits have time to
reduce the required amplifier gain", and also had a dual-time-constant
release "anti-pump" circuit.

Mark

On 12/19/06, Barry Mishkind <barry at oldradio.com> wrote:
> A discussion with someone has brought about the interesting question:
> what was the first audio compressor or limiter made for the broadcast
> industry?  That is, after manual gain riding of the 20s and 30s.
>