[Amps] CTI follow up

[Steve Thompson]

-----Original Message-----
From: w2fca@cs.com <w2fca@cs.com>
To: "Steve Thompson" <g8gsq@qsl.net>; amps@contesting.com
<amps@contesting.com>
Date: 25 June 2002 19:38
Subject: Re: [Amps] CTI follow up


>On Tue, 25 Jun 2002 11:06:15 +0000 Steve Thompson <g8gsq@qsl.net> writes:
>>>
>>>Out of interest, does anyone have figures for the dynamic
>>>regulation of gas tubes?
>
>Interesting quote from a web site devoted to the joys of tubes -
>
>"Gas regulators do not have very good dynamic response. Due to the
>time lag of the heavy ions that make up the discharge, they have
>time lags in response on the order of tens of microseconds.
>Redistribution of the discharge in the tube can make them even
>more sluggish. For this reason, they should not be relied on to
>stabilize strong audio-frequency variations."
>
>Sounds like something to avoid on SSB.
Maybe - if the rf envelope is limited to 2.5kHz bandwidth, that's 40us (ish)
time constant. I feel an attack of audiophile (or is it audiophool) 'some
tubes sound better' :-)

Steve