[R-390] Standy or Off?

[David C. Hallam]

Why use a ballast tube at all since it seems to be generally conceded that
they don't do anything useful when operating from a household AC line?
Replace it with a resistor or replace the 6BA6's with 12BA6's and use a
jumper in the ballast tube socket; no irreversible modifications with
comparable or better performance.

David C. Hallam
KC2JD

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]On
Behalf Of charles bolland
Sent: Saturday, February 26, 2005 7:55 PM
To: r-390 at mailman.qth.net
Subject: [R-390] Standy or Off?

Hi all,

I've burnt out a couple of Ballast tubes over the months and I am a little
"gun" shy now.  I don't want to ware out other tubes in my set, so I am
wondering which will prolong the life of any tubes in my receiver best of
the three following options?

1. Completely off when not in use - thinking about turning the set on and
off all of the time.
2. Standby when not in use - thinking some tube still burning all of the
time.
3. On when not in use - thinking all of the tubes are hot all of the time.

Any comments will be appreciated.

Chuck


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