#1
I have a peavey 6505+ and I bought it used. Its starting to sound really thin and weak so I think i may need to change the tubes?

Problem is, I dont have a clue about
1)how tubes work,
2)where the preamp vs the power tubes are in the amp,
3)which tubes work well with 6505 and
4)whether or not I'll have to bias

Can someone help me??
#2



how much did you pay for the 6505+?


tube is the glass thingy sticking out of the amp
preamp is small bulb and power is large bulb
not sure
thats depend on what kind of tube
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#3
If you're using active pickups, then maybe that could also be your problem.

And, like mentioned before, tubes are a glass like component in the amp. Not quite sure how else to explain it. Since it's a used amp, chances are that you will need to replace the tubes. I suggest researching tubes that you'd want to use to replace the amp's current tubes and if hesistant to replacing them yourself, locate some place that specializes in it.

Check this out:

http://media.photobucket.com/image/amp%20tubes/Chazzy29/Amps%204Sale/DSCN3949Small.jpg
Last edited by punker_7970 at Sep 24, 2009,
#4
Quote by dvm25
I have a peavey 6505+ and I bought it used. Its starting to sound really thin and weak so I think i may need to change the tubes?

Problem is, I dont have a clue about
1)how tubes work,
2)where the preamp vs the power tubes are in the amp,
3)which tubes work well with 6505 and
4)whether or not I'll have to bias

Can someone help me??


1) Wikipedia and google are your friends
2) Preamps are the small tubes and Power Tubes are the big ones
3) I don't know about that
4) Most likely, you will have to
#5
Quote by Sguit
1) Wikipedia and google are your friends
2) Preamps are the small tubes and Power Tubes are the big ones
3) I don't know about that
4) Most likely, you will have to


4) AFAIK the 6505 series are all fixed bias and not cathode bias, so you will most likely have to do some biasing when you change your tubes.

Despite its name, fixed bias means you have to do biasing, whereas cathode bias is like an auto-bias.
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