Fender guitare tube

Bab · 7th August 2003, 01:15 PM

how can I veryfi the condition of tubes on my Fender guitare amplifier. I don't have a tube tester.

Tank you

Yves

halojoy · 7th August 2003, 01:25 PM

Quote:

Originally posted by Bab
how can I veryfi the condition of tubes on my Fender guitare amplifier. I don't have a tube tester.

Tank you

Yves

I think the more experienced ones
are looking at the colors of the glow
when the tube starts to warm up and when it is warm.

They know how to see if there is anything that is
going to give up life soon.
I think tubes has not as long lifespan as transistors.
If one use slightly less power to heat the tube
it will live longer,
maybe at expense of some little prestanda.

316a · 7th August 2003, 01:49 PM

Quote:

Originally posted by Bab
how can I veryfi the condition of tubes on my Fender guitare amplifier. I don't have a tube tester.

Tank you

Yves

Three solutions , first one obvious : find someone with a tube tester ! Second : avoid the issue and buy a complete set of new tubes (not recommended) . Third : measure the voltages between cathodes and 0V . You may need a schemetic for this with the correct voltages marked , also other components drifting with age (anode loads / cathode bias) may affect this . Go for option 1 !

316a

psychokids · 7th August 2003, 11:26 PM

Or option number 4, buy a new set of tubes because one day its going to have to happen anyway. If the new ones sound a lot better, then the old ones were getting too old. If you cant tell much of a difference, give the old ones a while longer.

-Chris

SHiFTY · 8th August 2003, 06:05 AM

What kind of tubes are they?

If they are 6V6s, just get some NOS ones. They are cheap as. I find the made in Holland ones from the mid 60s the best 6V6 for guitar.

7th August 2003, 01:15 PM	#1
Bab diyAudio Member Join Date: Jan 2003 Location: Canada	Fender guitare tube how can I veryfi the condition of tubes on my Fender guitare amplifier. I don't have a tube tester. Tank you Yves

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7th August 2003, 11:26 PM	#4
psychokids diyAudio Member Join Date: Nov 2002 Location: Kent, WA	Or option number 4, buy a new set of tubes because one day its going to have to happen anyway. If the new ones sound a lot better, then the old ones were getting too old. If you cant tell much of a difference, give the old ones a while longer. -Chris

8th August 2003, 06:05 AM	#5
SHiFTY diyAudio Member Join Date: Jul 2002 Location: New Zealand	What kind of tubes are they? If they are 6V6s, just get some NOS ones. They are cheap as. I find the made in Holland ones from the mid 60s the best 6V6 for guitar.