Power tubes Rectifying tubes 2A3-40 A.F. TRIODE 2A3 is a power triode with a directly heated cathode and power of 40 W, mostly for Hi-Fi application. Sound even more detailed than 300B, with great tone separation. DOWNLOAD PDF JJ Electronic - Vacuum tubes, Capacitors, Amplifiers JJ-2A3-40 Quite possibly the most sturdy modern production triode we have ever seen. This JJ 2A3 boasts a 40 watts plate dissipation rating (which is 25W more than other 2A3 tubes) which will provide wider dynamic response to any system. This 2A3 is single plate construction. The base is white ceramic with a glazed black face.
JJ 2A340 Review
Typical Characteristics: Capacitances: cg1 = 17 pF ca = 11 pF cg1-a = 7,5 pF Ua = 250 Ug = -45 ia = 60 S = 5,25 μ = 4,2 Ri = 800 V V mA mA/V Ω Limiting Values: Ua = 450 V Wa = 40 W Maximum plate curent of everage tube for fixed bias ia = 70 mA Or as JJ puts it, "The JJ Electronic triode 2A3-40, introduced at the 2003 Las Vegas CES show, has, in contrast to the 300B triode, a heater voltage of only 2.5V. This, when combined with a heater center tap, results in a smaller potential difference with respect to the bias voltage and larger active cathode surface. The result is better sound. Maximum plate curent of e v e- rage tube for fixed bias I a= 70 mA Maximum plate curent for manually ad justed grid bias or self-biasing I a= 100 mA Capacitances: c g1 = 17 pF c a= 11 pF c g1-a = 7,5 pF Dimension and connections: Moderate pow er, filamentar y triodes for Class A ser vice. The JJ Electronic 2A3 features a robust construction in a beautiful thick glass envelope. The JJ 2A3 offers 40 Watts of plate dissipation which far surpasses the headroom of other 2A3 tubes by 25 Watts. The single plate build and increased ratings give this tube the highest reliability.
JJ 2A340 Review
This tube is an absolute wonder. Classic single-plate 2A3 construction with a modern 40 watt plate dissipation rating. It's detail is even better than the 300B which we thought was impossible. Very warm and liquid sounding. We loaned a pair to David Bardes for a review he was doing on 2A3 amps for Vacuum Tube Valley magazine. JJ 2A3-40 Matched Pair. These tubes have a velvety character with an extremely even frequency response. This gives them excellent warmth, clarity, and realism. They can be used in all classic 2A3 applications. Specs/Data Sheet Application Notes After manufacturing these tubes go through an extensive stabilization and burn-in process. The JJ Electronic 2A3 features a robust construction in a beautiful thick glass envelope. The JJ 2A3 offers 40 Watts of plate dissipation which far surpasses the headroom of other 2A3 tubes by 25 Watts. The single plate build and increased ratings give this tube the highest reliability. The JJ 2A3 has amazing detail and clarity with excellent. JJ 2A3 Vacuum Tube, Single. Brand: JJ Electronic. $21699. Eligible for Return, Refund or Replacement within 30 days of receipt. Color: Single. The JJ Electronic 2A3 features a robust construction in a beautiful thick glass envelope. The JJ 2A3 offers 40 Watts of plate dissipation which far surpasses the headroom of other 2A3 tubes by 25 Watts.
6moons audio reviews JJ/Tesla 2A340
JJ 2A3-40 The much hyped, greatly anticipated new kid in my room. These ended up being a little expensive - $375CDN landed - but since the 2A3 is my happy place and they are a lot cheaper than what I was considering (Emission Labs), I'm good with this. A large, well made, heavy glass tube that again, looks like a hefty 300B.. JJ 2A3-40 Review The review below was received in January of 2013. "Well, Ike persuaded me to choose the JJ 2A3-40 tubes for my PB-built amp, and Eurotubes.com got them to me in two days along with a six- month warranty. I took the time to treat the tubes and sockets of my preamp and amp with DeoxIT & PresevIT; and began listening.
Vacuum Tube - 2A3, JJ Electronics, Single Tube Brand New $216.99 Free Shipping Add to Cart Product Description TubeDepot supplies vacuum tubes for musical instrument amplifiers, Hi-Fi amplifiers, vintage vacuum tube recording gear and associated equipment. We provide tube sets for virtually any vintage or new production amp on the market. This set contains 4 JJ 2A3 - 40 Watt Power Vacuum Tube Important information
JJ Electronic 2A3 40W (matched) радиолампа Купить в магазине Аудиомания
#1 I have an Asano 2A3 amp (I bought it new from EIFL a few months ago) that's currently running grey plate RCA 2A3 tubes from 1954. It sounds amazing hooked up to my 846A Valencias, with very little hum, but I wanted to roll the JJs as a backup to the RCAs because we regularly run the system for hours at a time to listen to radio. The JJ Electronic 2A3 features a robust construction in a beautiful thick glass envelope. The JJ 2A3 offers 40 Watts of plate dissipation which far surpasses the headroom of other 2A3 tubes by 25 Watts. The single plate build and increased ratings give this tube the highest reliability. The JJ 2A3 has amazing detail and clarity with excellent.
