[Vintage-Audio] Tube amps with no load

Sun Mar 2 14:48:59 2003

I agree, if there is no signal there is no problem. However, if the filter
capacitor is bad (not exactly a low probability event with this older gear),
that hum can become a pretty healthy signal.

Steve W9QLF
-----Original Message-----
From: [email protected] <[email protected]>
To: [email protected] <[email protected]>
Date: Sunday, March 02, 2003 12:27 PM
Subject: Re: [Vintage-Audio] Tube amps with no load

>No problem at all....
>
>It's only when there's an audio signal going through the amp that there's
>a problem....
>
>Don't forget a transformer is an AC device.  The load is only reflected
>back to the tube during an AC excursion.  There's no problem or
>refelction with no AC, when the amplifier is at idle.
>
>Ed K1ZOK
>
>On Sun, 2 Mar 2003 10:28:03 -0600 "Steven K. Wenger" <[email protected]>
>writes:
>> Is it just me, or does anyone else cringe when someone on eBay writes
>> the amp's tubes light up but I have no way of testing it? There is a
>> Fisher X200 amp on eBay right now. You can actually see the amp's
>> line cord plugged into an extension cord, the tube's filaments are
>> on, and no speakers are connected.
>>
>>
>
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