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Post by premiumplus (Dave) on May 26, 2019 2:28:02 GMT -7
Great news! I see that the Highgrade 7025 also comes in a 7025WA version...which one are you guys talking about? Hey Dave. Just reporting that I was intrigued by the 7025 Highgrade non WA so ordered one of those as well. I now have the 7025 Highgrade in V1 and the 7025WA Highgrade in V2 of my Z Plus. Very nice tones from both tubes, and indeed both did the same stellar job taming my noisy verb. The 7025 WA version sounds slightly more complex on the high end and mids to my ears, and the 7025 sounds slightly bigger on the low end. (Though, the difference is so slight, I might just be hearing things.) In any event, you can't go wrong with either tube as far as low noise and as far as tone. Thanks man...now the only issue I could see would be longevity. The reverb driver spot is a tough job for a tube, you're driving a transformer with it so I'm interested to see how they hold up. There's gotta be a good reason for Doc to specify an NOS 6201 in that spot.
As you noticed, the reverb driver can have a big difference in tone. I can get away with a weak tube in the reverb recovery tube but if my driver is bad the tone suffers.
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jmg
Junior Member
Posts: 53
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Post by jmg on Jun 1, 2019 14:55:01 GMT -7
Once again, you guys help me out. I have to thank you too, Dave. TAD says on its website that the 7025 (non WA) can be used in any ECC83 slot and recommends the WA version for V1. So I did so, and now the amp is running as quiet as it ever has. Whisper quiet to the point you can't even tell it's on till you plug in. And the tone is so nice. The Z+ always sounded great with my Strats and Tele, but I was having a little trouble dialing in my Les Paul. No trouble now. The highs and mids seem baseline set just right now for all my guitars. Such a beautiful amp. I'm so glad I worked this problem out. I owe y'all a virtual beer. Read more: ztalk.proboards.com/thread/82095/reverb-circuit-plus-loud?page=2#ixzz5pdV2TtJY
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