Biete eine originale ECC83 / 12AX7, eine Vorstufen-Elektronenröhre mit gray plates, disk-Getter und sehr guten Werten von RFT / FWE* ,möglicherweise neu (aus Ersatzröhrenkoffer) austauschbar mit: B339, CV492, 12AD7, 6057, 5751, u.v.m. * Funkwerk Erfurt Gemessen mit FUNKE W18: 2,5 / 3 mA (80 / 90 %) 1 pc v. good ,electron tube with disk-getter, gray plates for preamp / tubeampPayPal Privatverkauf: kein Ersatz bei Verlust auf dem Versandwege

Ein zusammengehöriges Paar ECC83 von RFT. Prüfergebnis:Röhre 1: 2,5 / 2,4 mA = 95 %, GUT Röhre 2: 2,6 / 2,5 mA = 95 %, GUT Geprüft auf RPG 4/3 oder W 19 von Max Funke.

For sale a nice pair of ECC83 preamplifier tubes. They were tested for emissions and transconductance with good results.They were closely matched for transconductance at nominal plate current of 1.2mA. If you can bias your amplifier for both tubes individually, than these tubes are perfect choice for you. The price is naturally for the pair. **************************************************** ** ** ** ** ** ** ** ** ************************************ **About the testingMost of my tubes are tested, but always pay attention to the description in the listing!Vacuum tubes can be tested for a variety of attributes, but they are very rarely tested for everything. I usually test for the attributes I find most important with the specific tube. I take responsibility for these measurements, but not for other attributes that I have not tested!I dont take responsibility for any damage might caused to your equipment by inappropriate, or careless use of the tubes! Also keep in mind that when measuring vacuum tubes with different test equipment there will always be differences in the results. However, these differences shall not be significant (usually within 15%), and when done right, wont show a bad tube as good, or a barely good tube as very strong. If you are not sure what you need or how to choose, message me and I will try to help you make a decision that fits your needs. Tests I do:- Ia / emission test - is the most common test, which shows how strong is a tubes plate current according to nominal catalog data. The tests are usually done on a standard operating point, and these values ???????????????????????????will be shown on a tag or in the description.Usually above 80-90% of nominal we say it is Strong (or NOS), and above 60% it is still Good.- S / transconductance test / or GM - is the second important attribute of a tube indicated as mA/V. These tests are carried out at the nominal plate current and will also be indicated on the test tags.- Noise test - is made where it is indicated in the description. It means the tube has been tested for weird noises or microphony while playing music.It will be shown on the test tag as a mark. Keep in mind that noise test does not guarantee any sound quality, which is always the product of a specific tube type, brand, Ia and S attributes, and the amplifier as a system. Noise test means that in a simple audio circuit the tube did t make any disturbing noises, hum, and was not microphonic even when gently tapped. (In an audio system many parts, or the setup can couse weird noises, but it is not necessarily coused by the tube, but by certain interferences.) **************************************************** ** ** ** ** ** ** ** ** ************************************ **ShippingThe tubes will arrive to you in a well protected package and will be shipped within two business days from payment. The package will be sent with priority and a tracking number will be provided. If you find other tubes in my inventory, I will gladly combine shipping, and the cost will stay as listed under 0.5 kg total .For a package that exceeds this weight, we shall discuss the shipping costs. **************************************************** ** ** ** ** ** ** ** ** ************************************ **About meI am a private seller located in the EU. I buy and sell vacuum tubes.Im dedicated to reserving this beautiful technology, and for that purpose I select, test and rate my tubes. I build my own testers, work with them daily, and I know how they operate. I am also a test enthusiast who likes to learn more about tubes and tube testing. I am dedicated to sell tubes as described, and believe these tubes will perform as they should be according to the description.

2x ITT Lorenz ECC83 Röhre getestet mit dem Neuberger RPM 375 - bei diesem Gerät sind 1,2mA = 100%die Werte von einer Röhre sind 0,85 / 0,7mA - bei der anderen sind sie 0,75 / 0,7mA die bereitgestellten Fotos zeigen den angebotenen Artikelaußerdem zeigen sie die Bestandteile der Lieferungweitere Artikel finden Sie in meinem Shop

Spaßbieter müssen mit mit Kosten von 30% des Verkaufspreises als Schadenersatz rechnen! Sie bieten für 5x Abdeckungspanelen für Röhrenverstärker: RFT (38x7cm), RFT (52x7cm), Carl Zeiss TK35 (40x13cm), Siemens (? - 52x30,5cm und 52x13,5cm). Zustand - Gebraucht - s. Foto und Video. Gewicht - 4,5kg. Worldwide shipping. Ask for shipping costs before bidding! Wegen Alter verkaufe ohne jegliche Garantie oder Gewährleistung Sehen Sie auch meine weitere Auktionen

Biete eine originale ECC83 / 12AX7, eine Vorstufen-Elektronenröhre mit gray plates, disk-Getter und sehr guten Werten von RFT / FWE* ,möglicherweise neu (aus Ersatzröhrenkoffer) austauschbar mit: B339, CV492, 12AD7, 6057, 5751, u.v.m. * Funkwerk Erfurt Gemessen mit FUNKE W18: 2,5 / 3 mA (80 / 90 %) 1 pc v. good ,electron tube with disk-getter, gray plates for preamp / tubeampPayPal Privatverkauf: kein Ersatz bei Verlust auf dem Versandwege