[BC] Trapezoidal modulation display

[Phil Alexander]

It could be done on most high level plate modulated boxes
of the day. AFAIK Gates was the only manufacturer that
did it as a standard option. Most of the 5's were based
on the 10's with smaller iron etc. A PA built around a
pair of 3X2500F3 or similar was common. Properly driven,
175 or 200% + modulation was not that hard if the PS was
adequate.

Phil Alexander, CSRE, AMD
Broadcast Engineering Services and Technology 
(a Div. of Advanced Parts Corporation) 
Ph. (317) 335-2065   FAX (317) 335-9037


On 19 Feb 2006 at 10:17, Steve Michaels Productions wrote:

> It was an RCA transmitter at WEAM.
> 
> -----Original Message-----
> From: broadcast-bounces at radiolists.net
> [mailto:broadcast-bounces at radiolists.net] On Behalf Of Phil Alexander
> Sent: Saturday, February 18, 2006 10:44 AM
> To: Broadcasters' Mailing List
> Subject: Re: [BC] Trapezoidal modulation display (was "Re: [BC]Inovonics
> model 520")

> That was a "special" mod. (available from the factory for those who knew) on
> the Gates BC5P2 and probably on the BC5H when it was introduced. Since the
> BC5P/H and BC10P/H cabinets were identical, it was a matter using the 10P/H
> iron and PS in the 5. A really easy mod. from the factory standpoint. I 
> believe this was the reason for the 125% rule. Too many complaints about
> "loud" competitors from the whiners who didn't want to buy one. <g>






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