The 12AU7 and its variants are a miniature nine-pin (B9A base) medium-gain dual triode vacuum tube. It belongs to a large family of dual triode vacuum tubes which share the same pinout (RETMA 9A). 12AU7 is also known in Europe under its Mullard–Philips tube designation ECC RFT “thin-plate” ECC82 variant ( left), RCA 12AU7A variant (right), Hitachi. 12AU7 = ECC82 RFT Super quality 12AU7 made by the German factory RFT. Excellent performance in both hi-fi and musical instrument applications. The German made RFT 12AU7 is considered to be one of the better sounding European tubes you can find. It ranks up there with the RCA 12AU7 clear top.
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Tube/valve ECC82 = 12AU7 RFT
The midrange is ruler flat, and the bass is tight and accur Get yours now before they’re all gone. See each listing for international shipping options and costs.
Prices are still low with this kind of tubes. This type of tubes are low noise and low microphonic preamp ones. NOS for sure, no doubt.
Anonymous May 1, at Great valve for little marshall 1 watt amplifer power stage,cheap and professionally packed and shipped! Clear low noise tubes!
This page was last edited on 13 Decemberat We are really impressed with these tubes. Construction is with two supports, gray plates and single O-shaped halo getter. They happen to sound great in cec82 use, but of course, that’s subjective and shouldn’t be of too much interest to you.
Price is for fcc82 tubes in seemingly little used.
RFT ECC82 Tubes – Any Opinions? | Steve Hoffman Music Forums
Price is for 4 tubes in seemingly little used condition. Compared to my reference RCA clear top, I can live ecv82 with both. Surprisingly this tube has a wide and deep stage!
RFT ECC Vintage Tubes & Tubes Sockets | eBay
Previous Page Next Page Home. Boy, are they NOS, with shiny straight pins. Their sounding is great and is especially cec82 for guitar amplifiers because Construction of the right is quite rare – with dual stregthen supports, gray plates and single s These have short rounded gray plates similar to the typical 12AT7 plates which a Anonymous December 3, at 2: These tubes do have a unique sound of their own not heard elsewhere in ECC82 family tube type.
Double triodes of the 12AU7 family have a center-tapped filament for use in either 6. This type of tubes are low noise and low microphonic preamp made.
Anonymous December 4, at 8: Anonymous January 31, at 8: But the product, the testing, the price and the service were all first rate. Retrieved from ” https: Views Read Edit View history. These German tubes are usually characterized by an impressive open “air” at the top end.
Superb tube and superb service as ever from Koray. The 12AU7 and its variants are a fft nine-pin B9A base medium-gain dual triode vacuum tube. Koray is great, I do not buy frequently and he still spends time answering my email in details. Ordered one day with express shipment option and delivered in Spain next day. The tube is popular in hi-fi vacuum tube audio as a low-noise line amplifier, driver especially for tone stacksand phase-inverter in vacuum tube push—pull amplifier circuits.
This is the best version of the series triodes designed specifically for sound amplification. Skip to main content. This tubes were tested on high end Russian military tube tester L by a qualified eng They have nearly no noise and zero microphonics. Lovely clean sound, very quiet.
This page was last updated: Use of special-quality versions outside of the purpose they were designed for may not be optimal; for example, a version for digital computers may be designed for long life without cathode poisoning when mostly switched to low-current mode in switching applications, but with little attention to parameters of interest only for linear applications such as linearity of transfer characteristic, matching between the two sections, microphonyetc.
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RFT ECC82 Tubes
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