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esh0 30th December 2008 01:47 PM

6BL7 replecement
Hi all!

Can you tell me if it is possible to change 6BL7 tube in application shown below to any other tube? I want to cut costs of this amp, so i though of changing 6SL7 with 6N9S (rus 6H9C) and 6BL7 with... Yeah, with what? Maybe 6N8S should be okey with some changes? Both them have similiar amplification factor.

I know that good replecement tubes for 6BL7 are ECC99, CV5039, E182CC, but they costs same as 6BL7 and are even harder to buy in Poland :/

There was also topic about changing 6BL7 and people said that it can be substituted be - 6s4a, 6ew7, 7044, 6gf7 - impossible to buy in Poland :/

Thanks for all replies.


Fuling 30th December 2008 01:57 PM

If 6BL7 is similar to ECC99 perhaps you can take a look at the russian 6N6P?

esh0 30th December 2008 02:00 PM

But 6N6P can only take 120V at anode, am i right?

aroS3 30th December 2008 02:04 PM


Originally posted by esh0
But 6N6P can only take 120V at anode, am i right?

No, Va=300V

esh0 30th December 2008 02:18 PM

Ok, so i can try it :)

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