What about the cbs hytron 5814a tube?
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- 49 posts total
Interesting comment, the way it "spreads out the sound". Often wondered who else actually listens for this attribute. I do, and it can even vary in the first 30 to 90 minutes of warmup too as sound, transformers, amps warm up fully - or within my system at least. Listening very early on Christmas before everyone wakes up, I have been looking over good 12au7 threads, and this ’"Best 12au7" thread from 2024 came up. Having tried over 20+ pair of vintage 12Au7s I use as input tubes in my monoblock tube amps, always keeping an eye out. Currently and still running two year old PSVanes that displaced my prior 60s Mullard curve-tracer-tested Blackburn Plant tubes from Brent Jesse. Swapped a few times, the Mullards sitting back in boxes. They have nice detail but lack similar midrange body comparatively. Tradeoffs perhaps. Ask for 2026: ??? In 2026, curious to know if anyone has come across any other new/re-issue 12Au7, 12At7 tubes you like even more than what was released as new re-issue tubes in 2023/2024. Note: I already have plenty of vintage stash, sitting in boxes stored. Still hanging on to all of them, yet may let it all go soon next year. What else [re-issue] is out there is anyone liking a lot or better than your vintge stash if anything new |
Here are some of my favorites... 1956 Valvo Hamburg Long Plate w/ 45º D-Foil Getter & Medical Red Tip 1950/1/2 Philips Copenhagen Welded Plate 12AU7 1956/7/8 Mullard Blackburn Square Getter Long Plate w/ Medical Red Tip Mullard Whyteleaf M8136 Box Plate with Mottled Glass Siemens Silver Plate w/ Medical Red Tip Mazda 3-Mica Short Grey Plate Genalex B749 GEC B329 Siemens E82CC Long Plate Early 1950’s Landsdale Long Black Plate (possibly labeled for Philco) Amperex 7316 Long Plate D-Getter or Short Plate Treble Clefs Mullard Mitcham CV4003/6189 w/ Medical Red Tips Brimar CV491 Long Plate Brimar Long Black Plate with Medical Red Tip Tung Sol Black Glass Mil Spec with Medical Red Tip 1955 Amperex Long Plate with 45º D Foil Getters |
When Investigating 12AU7 Valves, the following is discovered! ______________________________________________________ All 12AU7 tubes are rated Vhk=200V ________________________________________________________ Earlier references made to the 5841A, does not point out there is a Voltage Difference that could negatively impact on a Circuit. |
- 49 posts total