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I have been doing most of my listening on the go lately, but I fired up the OTL for the release of a new cd. After not listening for a... -
In the Glenn, the 12 and 25 volt heater supply is DC, not AC. So usually 12 and 25 volt tubes are quieter. :)
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Xcalibur255 replied to the thread 2359glenn | studio.The 60hz hum will be your base background noise level from the transformer, no fixing that except to use tubes with the lowest gain...
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I haven't listened to a 3-hole, "1952" Sylvania "Bad Boy" in years. So I popped one in along with a pair of Tung-Sol 6AS7G (6520) and an...
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To my knowledge, Glenn did not assign serial numbers or dates to his amps. I can say that I took delivery of my amp ten years ago, 2015...
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Xcalibur255 replied to the thread 2359glenn | studio.I would say it's not quite that simple. The early ones with the original transformer had enough headroom but it did make them run quite...
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Perhaps one or two regular readers of this forum have been waiting with bated breath to see another Z2c? :) At the end of World War...
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GOTL up and running with russian tungsol 6SN7 and Toshiba 6080 HI-S, I am loving the more refined and balanced tonality of the 6080 more...
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Xcalibur255 replied to the thread 2359glenn | studio.A 12AT7 isn't necessarily a wrong driver to use in the amp, but with this type of design there is a trade-off being made between gain...
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Xcalibur255 replied to the thread 2359glenn | studio.Out of curiosity, why 12AT7? The increased gain over a 6SN7 or 12AU7 is going to exacerbate your noise issues. Have you tried running...
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Well I'm back peeps. Took me a while to really get into it but I cranked out the mods on my new-to-me GOTL. I replaced all 6 power...
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Xcalibur255 reacted to Isaacc7's post in the thread The Reference Pentode and Beam Tetrode Thread EL34, KT66, KT77, KT88, EL11, EL12, EL3N, EL35, EL37, 6550, 6L6, EL51, EL39, 4654, 4699, KT63, KT61, 6V6, etc with
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I realize I have become Mr. Cynical on these tube threads but no, I can’t imagine the extra $600 is worth it. Well, if enjoying music is... -
Well, I continue to explore the world of 4-volt rectifiers in my GOTL using adapters built by @Deyan . This is a Siemens Austria Z2c...
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I think this was the amp built right after @gibosi amp was built. So this amp I believe will be 10 years old by the later months of...
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Xcalibur255 replied to the thread 2359glenn | studio.It adds 20mA of plate current to the output tube bias. Beneficial for the 5998, pushes the 6080/6AS7 very hard (100% dissipation).
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