Lon
Seasoned Member
"Love without guts is worthless!" Philip K. Dick
Posts: 25251
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Right. It's a version of the 12AU7 type. Here is the description from the Brent Jesse site:
E80CC / 6085:This unusual European tube is basically an industrial type 6085. However, it's specs are similar enough to a 12AU7 that audiophiles are grabbing them up while the prices are still reasonable. The heater life is rated at 10,000 hours, and some have gold pins. The larger box plate structure gives this tube low microphonics and silky smooth sonics. Some of the Philips Holland versions had the rare pinched waist, where the glass dips inward and actually molds around the top mica plate, giving the plates extra support and virtually eliminating microphonics. There is also a version made at the Amperex factory in Hicksville, NY, which is often priced lower but looks the same and sounds very similar to the Holland version. Since this tube has a much higher Gm and Mu factor than a 12AU7, the gain is going to be greater and this tube will give a more forward presentation. Awesome in phase splitter applications. If in doubt, check with your amp or preamp manufacturer to see if this tube will work OK in your application. This tube is also about twice as tall as a 12AU7, so installation space in your chassis is a consideration as well. These are out of production, rare, and getting very hard to find. The European types usually command the top prices, but USA types exist as the 6085 and should be a bit lower in cost, but they are also rare and climbing in price. Many USA tubes were actually made by the European factories, so watch for the 6085 USA brands!
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Favorite 6CG7 tube? (Read 8353 times)
