[AMRadio] ceramic standoffs needed
Gary Schafer
garyschafer at comcast.net
Sat Dec 27 16:06:03 EST 2003
Hi Terry,
Sorry I was thinking of the wrong end there. But the current at the
plate end is even worse. Voltage would be 2 times dc voltage but the
current is very high. Need transmitting mica caps there or doorknob ceramic.
73
Gary K4FMX
Tbs50A at aol.com wrote:
> Hi Gary,
> I wasn't paying attention to where that piece of mail was going.
> It wasn't meant for the list. The caps in question are padders for the plate
> tuning not loading. Johnson in it's infinite wisdom four 500v caps in
> serise/parrell to make a 1kv unit which is still underrated. I figure 660v plate
> voltage + 150w of rf @ 8v a watt 1200v rf + 600v of audio in am mode. Add it all up
> and you get 2400v or four times the plate voltage on the final. So does that
> seem good logic to you?
> Terry N3GTE
>
>
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