Ruby 12AX7AC5 HG+ 678 tubes

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cwg2018

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How do I contact Peter Diezel to purchase Ruby 12AX7AC5 HG+ 678 tubes for my VH4?
 
Those from Doug's are different than the 678. The 678 has one triode that's got super extra low microphonics. Should say 678 on the label. I have some somewhere.

Jens Kruse may have them in stock. He used to.
 
RedPlated said:
Those from Doug's are different than the 678. The 678 has one triode that's got super extra low microphonics. Should say 678 on the label. I have some somewhere.

Jens Kruse may have them in stock. He used to.
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Ok... my bad I didn't know. Thanks for the correction.
 
Does the vh4 need these? Regular 12AX7 won’t work? Asking because I have a vh4 coming this weekend.
 
V1 of VH4 takes them. Or is it V2? I forget but I thought it was V1.
 
Cap217 said:
Does the vh4 need these? Regular 12AX7 won’t work? Asking because I have a vh4 coming this weekend.
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Its not "Needed"...but Recommended. You'll be fine without the 678's. They are just great for the needs with regard to microphonics and noise. There are a ton of guys who probably dont even know about these tubes who use Diezels. Dont sweat it.
 
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