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Old 30th December 2008, 02:47 PM   #1
esh0 is offline esh0  Poland
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Default 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.

Schematic: http://www.jogis-roehrenbude.de/Lese...Neu/PP-Neu.gif
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Old 30th December 2008, 02:57 PM   #2
Fuling is offline Fuling  Sweden
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If 6BL7 is similar to ECC99 perhaps you can take a look at the russian 6N6P?
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Old 30th December 2008, 03:00 PM   #3
esh0 is offline esh0  Poland
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But 6N6P can only take 120V at anode, am i right?
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Old 30th December 2008, 03:04 PM   #4
aroS3 is offline aroS3  Greece
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Quote:
Originally posted by esh0
But 6N6P can only take 120V at anode, am i right?

No, Va=300V
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Old 30th December 2008, 03:18 PM   #5
esh0 is offline esh0  Poland
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Ok, so i can try it
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