[BC] Sta-Level tweaking

[Phil Alexander]

On 15 Jan 2006 at 3:51, Robert Meuser wrote:

 > I remember when FM stereo first hit the air (I was working on a pioneer
 > station). The was no audio processing and a lot of stations had 
the peak limiter
 > at one DB limiting on exceptional peaks. Bad operators had levels 
all over the
 > place. This was quickly replaced by AM processing which was a STA- Level in
 > those days.

Hmmm. I was using a Sta-Level in 1963 on mono FM. About a year later
I got smart and modified the bias generator circuit with a HPF at about
250 Hz so we could increase compression to around 15 dB average without
it being obvious. This took care of the lazy board op problem.


Phil Alexander, CSRE, AMD