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- Users: rich.no
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Hum and other problems with "NOS" power tubes?
Thanks for your help guys. Cleaning the pins with alcohol and cotton swabs solved the problem :-) I tried finding a metal bristle brush, but my hardware store didn't have one.- rich.no
- Post #8
- Forum: Headphone Amps (full-size)
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Hum and other problems with "NOS" power tubes?
Thanks for your replies! I sent a mail to the dealer after reading them, he assured me the tubes were tested good on his AVO tester, but that if the hum persisted after pin cleaning I could return them for a refund :-) I can't seem to find Deoxit anywhere in Denmark, but will try with some...- rich.no
- Post #4
- Forum: Headphone Amps (full-size)
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Hum and other problems with "NOS" power tubes?
I bought some Tung-Sol 5998s (8 of them) from a dealer. They were sold as NOS, but I guess I've been ripped off. Some are top getters, others bottom getters. Several of them have a hum, and one makes a cracking sound. My question is this: if a tube really is NOS, will it hum? Make cracking...- rich.no
- Thread
- headphone-amplifiers desktop-amps tung-sol-6v6gt-vacuum-tube
- Replies: 7
- Forum: Headphone Amps (full-size)
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The Woo Audio 2
Quote: Mine never gets hot, just warm. The tubes are warmer than the chassis. I have a stock WA2 from March 2010.- rich.no
- Post #397
- Forum: Headphone Amps (full-size)
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Amp recommendation for AKG701.
I think you will be better off searching the forums, rather than posting. There is a ton of information on K701/K702 amp pairing here already, and you'll be missing out on most of it if you expect someone to write you an executive summary...- rich.no
- Post #2
- Forum: Headphone Amps (full-size)
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Where are the stickies?
I am looking for some of the stickies too. I suppose it's safe to assume the conversion from the old to the new platform missed the sticky flags, which is regrettable. I agree there can be too many stickies, but there are some really good guides that should have been kept sticky. The end...- rich.no
- Post #6
- Forum: Members' Lounge (General Discussion)
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Woo WA2 Tube Rolling Recommendations
Quote: I experienced fatigue with the Sylvania 7236 tubes in my WA2 with K702 headphones. The russian 6N13S, however, aren't fatiguing at all.- rich.no
- Post #116
- Forum: Headphone Amps (full-size)
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Woo Audio Amp Owner Unite
Quote: Originally Posted by Shinsengumi My WA22 is ready for shipping. Sadly I had to verify my credit card suddenly at paypal and it will take a few days before I get the card statement. Try calling your bank/credit card issuer. My bank was able to provide me with the PayPal...- rich.no
- Post #3,376
- Forum: Headphone Amps (full-size)
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Woo Audio 2 rectifiers tube rolling
Quote: Originally Posted by Henerenry There is a tube on here somewhere regarding the rolling of tubes for WA2 I guess you're referring to this: Woo WA2 Tube Rolling Recommendations. It deals primarily with power tubes.- rich.no
- Post #4
- Forum: Headphone Amps (full-size)
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Woo Audio 2 rectifiers tube rolling
I've tried these two: Ei (Elektronska Industrija Yugoslavia) EZ80 (stock tubes) Tungsram EZ80 -- with Sylvania 6DJ8 drive tubes and Sylvania 7236 power tubes. With my setup, I couldn't make out any differences. Big disclaimer here, though, as I've only had the WA2 for about a month and...- rich.no
- Post #2
- Forum: Headphone Amps (full-size)
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Woo Audio Amp Owner Unite
Quote: Originally Posted by Zombie_X Hey guys if you guys are looking to upgrade to the 7236 tube, I found a place that sells them for half of what Jack wants. 7236 I bought one and it is the exact same tube, but about half of what he wants. A heads-up for WA2 owners...- rich.no
- Post #2,866
- Forum: Headphone Amps (full-size)