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Re: [Amps] General question on filament life

To: "'Gary Myers'" <garymyers@powerc.net>,"'Amps'" <amps@contesting.com>
Subject: Re: [Amps] General question on filament life
From: "Robert B. Bonner" <rbonner@qro.com>
Date: Thu, 8 Feb 2007 13:19:33 -0600
List-post: <mailto:amps@contesting.com>
Probably NO DIFFERENCE.  There are some tubes that can only be cycled once a
day, the 3CX800 and 4CX800 arent them.

With any tube, I'd save the big ON switch until you knew you were going to
need it.  Then figure out what the rest of the day was going to bring.  Use
common sense.  Think light bulb they work on the same principle.

BOB DD

-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Gary Myers
Sent: Thursday, February 08, 2007 12:41 PM
To: Amps
Subject: Re: [Amps] General question on filament life

 Boy - butchered that message (that is what I get for burning 
the
 candle at both ends)... hopefully the message was understood.
 What reduction in life of a set of tubes would one get if they
 left the amp on for 12 - 15 hours per day most every day vs.
 turning it on and off multiple times.

 your CONSIDERED comments are appreciated.

 g.

:
:
: Anyone have a feel for what life one might get out of a set of
: tubes if they left it on for say 12 hours a day most every 
day?
: Is this "better" than cycling power say 3 times each day ... I
: realize these are just "general" numbers... but would like to
: get some thought from the educated. It has been stated that
: cycling it is not good - but without details of what excessive
: is this is somewhat lacking in true info. Tom ('JI) had said
: that filaments are rarely the problem... is there any other
: downside to just leaving it on? [The amp in particular would 
be
: either using 3CX800's or 4CX800's - Titan vs. Acom2000A]
:
: thanks for your considerate comments.
:
: Gary
: K9RX
:
: 


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