[BC] How would you build it?

[richardbrianjohnson at verizon.net]

 Ampliphase was often called Amplifuzz because the uncorrected phase-modulation caused sidebands that sound like present-day IBUZ. The 135 degree vectors were soooo important and, as stated, practically impossible to maintain.
 
That said, assuming the drive-regulation was properly adjusted, it had the highest overall efficiency of any high-power transmitter in its day. I heard it stated, and not by a salesman, that the transmitter was paid for in the first five years of operation by the reduction of utility bills alone.
 
 Cheers,
Richard B. Johnson
http://www.AbominableFirebug.com
 
On 07/31/14, James Potter<jpotter at jpotter.com> wrote:
 
Dave:
Ask Rene about the venerable old RCA Ampliphase BTA-50G used at the ex-WIBG AM 990 in Philly. As I understand it, that transmitter was an endless pain in the rear to keep tuned and sounding good