Recent content by GrindingThud
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Woo Audio WA3 Impressions and Tube-Rolling
Yes, 1/.007000mhos = 142.85ohms micro is 10e-6- GrindingThud
- Post #236
- Forum: Headphone Amps (full-size)
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Woo Audio WA3 Impressions and Tube-Rolling
For 6080/6AS7G OTL cathode follower amps, like the WA3, output impedance is roughly 1/transconductance for a cathode follower. That puts the 6AS7 with transconductance of 7000micromhos at about 142ohms. Changing the tube to a 5998 with transconductance around 14000 gets you down to 72 ohms. Even...- GrindingThud
- Post #234
- Forum: Headphone Amps (full-size)
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Woo Audio WA3 Impressions and Tube-Rolling
They are definitely hard to find. That’s pretty much all I run in mine these days. Sounds similar to a 5998 or 421A.- GrindingThud
- Post #223
- Forum: Headphone Amps (full-size)
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DC, VA, MD Areas Head-Fi Up Coming Meet At Fairfax City Library on 9/30/23
Looks like I missed a good one!- GrindingThud
- Post #54
- Forum: Local / Regional Head-Fi Meets, Parties, Get-Togethers
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DC, NOVA, MD | August 27 [DATE CHANGE]
Not sure if I can make this one...gotta see if I can make schedule. 🤓 -
For 6AS7G tube rollers here .....
I love my 7802s… 🥰- GrindingThud
- Post #8,546
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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DC Area Head-Fi Meet Planning (ongoing)
LTA, Nice!- GrindingThud
- Post #274
- Forum: Local / Regional Head-Fi Meets, Parties, Get-Togethers
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DC Area Meet - December 15th, 2019 Impressions!
Looks like I missed a great meet - awesome photo set! -
Washington, DC./Maryland/Virginia Head-Fi Member Meet - May 18, 2019 - Gaithersburg, MD
Tracking - not sure if I have schedule but will put it in queue... -
DC Area Meet - August 18th, 2018 Impressions!
Oooo, l really want to hear that...missed it this time. Looks like an awesome kit! -
DC Area Meet - April 7th hosted by Gramophone Impressions
I was not a fan of the Sonoma either. Did not like the sound and they were uncomfortable...thick I think is a good description. As for the Yggys, I can only say that I liked the coax input better than the fiber. -
DC Area Meet - April 7th hosted by Gramophone Impressions
Great meet, people, gear, and hosts! I'm surprised how much I liked the Mac amp. Some photos posted here, feel free to contribute to the album: https://photos.app.goo.gl/VpzuJdgGDKAGsnCm2 -
DC Area Meet - April 7th, 2018 hosted by Gramophone
Inbound :o2smile: KSA-5 Klone, LCD2.2, WA3 w/CCS- GrindingThud
- Post #117
- Forum: Local / Regional Head-Fi Meets, Parties, Get-Togethers
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DC Area Meet - April 7th, 2018 hosted by Gramophone
Working to get this on my schedule. :)- GrindingThud
- Post #16
- Forum: Local / Regional Head-Fi Meets, Parties, Get-Togethers
