Re: Replacement tubes for a Sonny Jr

["Bob Maglinte" <bbqbob917@xxxxxxxxxxx>]

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MessageHi Bob,
The ONLY tubes that are self biasing are the PREAMP tubes. Power tubes =
and rectifier tubes  can sometimes be used without biasing, but it IS =
better to have the amp properly biased to get optimum performance from =
them. Those Sovteks are fine in a pinch, but compared to what's in =
there, they're CLEARLY and inferior product, and a better new production =
is one formerly made under the Svetlana label (the new ones are the same =
as the Sovteks), but are now under the name of S.E.D. and/or carries a =
"winged C" on the tube glass is a VASTLY superior tube, and the closest =
to the Phillips that's in your amp.

Sincerely,
Barbeque Bob Maglinte'
Boston, MA
http://www.barbequebob.com

  ----- Original Message -----=20
  From: Robert Koch=20
  To: harp-l@xxxxxxxxxx=20
  Sent: Tuesday, November 04, 2003 3:23 PM
  Subject: Replacement tubes for a Sonny Jr



     Dear list,

     I am the proud owner of a Sonny Jr amplifier (serial # 51) that I =
got this morning. Unfortunately, a tube broke during the transport. It =
is a Philips ECG JAN 6L6 WGB made in the US. A have a pair of matched =
Sovteks 5881 WXT. Can I use those for replacement? Was the 6L6 biased =
and do I need biased tubes to get my amp working? I don't know if the =
Sovteks are biased... And, BTW,  what does "biased" mean? I don't want =
to ruin this beautiful amp and all help/advice is welcome. Thanks
  Robert aka Sunnyside Bob.