tourmaster questions

  • Thread starter Thread starter Anonymous
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Anonymous

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I just purchased a tourmaster combo, and I have a bunch of questions.


-what replacement tubes can I use for the power section. particularly, will a 6550 or kt66 be ok in it?
will the power section switches still work if I use either of those tubes.

-I was thinking that I might wanna change the power tubes. mine feels a little bit "hard" to play. . if the 6550's or kt66 wont work with the power section switches, would it be ok to use TAD 6L6GC-STR or Sovtek 6L6WXT+.

-when I bias this amp at 130, after a few minutes of playing it, or even switching it from standby back to play mode.., the bias usually jumps down...sometimes as low as 110. is there something I can do to fix the bias adjustment screw? it isn't removable, but would there be a way to stabilize it? or is there something else anyone can suggest?

-what, if any, effect does biasing above 132 have on the amp/tubes/other parts? i notice i can bias it pretty high, way high actually. REALLY HIGH.

my ser# is TM4212 12XXXXXXXXX. does it have the modification for the tone improvement? i play mostly metal. if it does not, how can i get the mod or how to find it?

I LOVE this amp, and the clean tones alone make it worth the trade (I traded an early model mesa boogie heartbreaker that i pretty much hated and it went unused for about 10 years) for it. channel 3 REALLY sounds great for soloing....and aside from being able to keep the bias at 130, I'm starting to really like my channel 4 settings. it took some time to get "my" sounds...but that's part of the fun, right?!
 
you can search it on youtube. there are a bunch of clips of it!!
 
Check the manual. What ever tubes are listed in there are the only ones that will work with the power scaling. I think it is the 6550 and the KT 66. Anything else that fits in the sockets will work if biased correctly but will not have the power scaling operational.

If you don't bias properly you could burn out the tubes or even other parts of the amp, particularly if you bias too hot.

:rock:
 
yeti":3vrjoqyu said:
my ser# is TM4212 12071193. does it have the modification for the tone improvement? i play mostly metal. if it does not, how can i get the mod or how to find it?
Click to expand...

You probably have to ask Egnater that question, but my guess is that the "M" was only put on the older ones that were made one way and changed to the other. I suspect that anything newer was made with the modification and without the "M" designation.

If it needs the modification I assume you could send it back to Egnater for the work.

:rock:
 
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