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Dec 04, 2017 · Forum member @joshnich sent me a couple of 12AD7 tubes to roll in my amp. I took out the two 12AT7's and popped them in. I was very surprised at how authoritative the tubes were in the amp. Very nice bass and detailed midrange and hi's. The 12AD7's are twin triode rated at 450mV vs a regular 12AX7 tube at 300mv.
Can they replace 12AX7 tubes? Best use clean, drive, or phase inverter? What sound would I expect from them? I would not swap 12BH7As in for 12AX7s. The pinouts are the same, but they really aren't meant for the same applications. It also draws like twice the heater current of a 12AX7, so it...

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Buy the best and latest 12ax7 tube amp on banggood.com offer the quality 12ax7 tube amp on sale with worldwide free shipping. 966 руб. 1 263 руб. 24% Off Aassembled AC 12V 1A 6J1 Preamp Tube Preamp Amplifier Board PreAmplifier Module Pre-Amp Headphone Bile Buffer Stereo Bass HIFI...upper tube acting as both a cathode fol-lower and a plate load for the lower tube. These circuits can achieve very low distortion and output impedance as well, but suffer from the same issues as a cathode follower output stage. This design takes a different path a single gain stage using a low-mu triode with very low plate resistance (Photo 2).
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Oct 24, 2018 · The Electro-Harmonix 12AX7 / ECC83 is a brand new pre-amp tube that is made in Russia The EH-12AX7 tube has a nice balanced sound, a very low noise floor and excellent performance in terms of microphonics EH 12AX7 GOLD – $70/pair The Electro-Harmonix 12AX7 / ECC83 is a brand new pre-amp tube that is made in Russia. The 12AX7 Gold Pin is the ...
12AX7 - Do different preamp tubes make a sonic difference? From Behringer to Mullard. A rundown of the differences betwenn 12AT7, 12AU7 and 12AX7 tube in a tube overdrive pedal built by Volture Pedals.
Unterstützt 6N2 / 12AX7 Röhren, die viele austauschbare Rohre für Sie wie 6H2,6H2n (für 6N2 Typ) und 12AX7B, 6N4 (9PIN), ECC83,5751 (für 12AX7 Typ) bietet. Auf der Unterseite der Beschreibung gibt es ein paar Q & A für Käufer, die das summende Problem treffen könnten.
Tube 12AU7 Self-split output stage Amplifier 1.5Watt tube 12AX7 (6N2P) + EL84 (6BQ5, 6P14P) 14Watt hifi... tube EF86 + EL34 8Watt Single-ended HI-FI Power Am...
First observations about the Hytron 6AK5 vs Chinese 6J1 is the Hytrons running brighter, but cooler to the touch. They are also a physically shorter tube, and I have no idea when my NOS tubes were made... As far as the sound, I think they are only a little better than the stock 6J1 tubes.
If your using 6j1's this is the tube for you. I recently bought a small single ended headphone amp that came with 6j1's. The 5654 is a huge improvement! If you like the sound that comes from a cheap transistor radio then keep the 6j1's. But if you want a nice full well rounded sound then get the 5654's. A small tube at a small price with a big ...
Jul 30, 2004 · Tube Interchangability Reference. The following should be direct substitutions. To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. Tubes in the "Tube" column are directly replaceable with tubes in the "Replacement" column.
Compatible with US/European and Russian/Chinese miniature 7-pin and 9-pin tubes with B7G bases (e.g., 6AK5, 5654 tubes) and B9A bases (e.g., 12AX7, 12AU7, 5670, 6BQ5, EL84 tubes). Bent tube pins can permanently deform and loosen the contact between tube pins and socket contacts, which could negatively affect sound quality.
Aug 03, 2013 · Tung Sol 12AX7 vs JJ ECC83S preamp tubes. Discussion in 'The Workbench' started by dexter74, Jul 31, 2013. Page 1 of 3 1 2 3 Next > dexter74 Member. Joined: Dec 31, 2011
ECC83/12AX7 vs 12BH7 Showing 1-4 of 4 messages. ECC83/12AX7 vs 12BH7: RanMaFan: 5/18/00 12:00 AM: I have a circuit currently using ECC83 tubes, but the designer says ...
I will build a 6SL7 or 12AX7 SRPP voltage amp to drive a UX-245 triode base on the above calculation on my single end stereo platform. I select a 12AX7 the databook said that µ = 100 and Ra= 80K ohm I made R = RAK = RK = 3.3 K ohm and find the RL is 123 K ohm by F 45, 120 K is practical.
Durable, low noise/microphonic double triode, close by characteristics to the 12AX7/ECC83. Made by VOSKHOD factory (ROCKET logo). 6N2P tubes are a replacement for 12AX7 in any typical amp application, but they have 6.3V heater voltage and would need a different wiring than stock 12AX7's.
Low-hum, noise and microphonics version of 12AX7. Heaters can be parallel connected for operation at 6.3V, 0.3A. Text in other languages (may differ) Dimensions (WHD) incl. pins / tip: 20 x 54 x mm / 0.79 x 2.13 x inch: Tube prices: 2 Tube prices (visible for members only) Information source: Essential Characteristics, GE 1973
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Genalex Gold Lion ECC83/B759 (12AX7) dual triode preamp tube with gold pins. Original Genalex Gold Lion ECC83/B759 tubes are considered among the best 12AX7 types ever made. They are hard to find and when they are available, they are expensive. They exhibit a large detailed soundstage that is sought after by discerning Stock Chinese 12AX7 tube and a replacement Russian 6V6GT tube. Speaker grill cloth replaced. R7 snipped.. This is a printed circuit board chassis 3-tube amp (50C5x2, 12AX7) with one 50C5 being used for the output tube for the left channel and the othe..

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Stock Chinese 12AX7 tube and a replacement Russian 6V6GT tube. Speaker grill cloth replaced. R7 snipped.. This is a printed circuit board chassis 3-tube amp (50C5x2, 12AX7) with one 50C5 being used for the output tube for the left channel and the othe..Tung Sol 12ax7 vs Jan-GE 12ay. Equipment: Ceriatone JTM-45 with JJ 12ax7 in V2/3, Gold Lion power KT66, & TAD GZ34 rectifier tube. Marshall 2061cx 2x12 cab with stock 70th anniversary G12h30 Celestions.

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Replaced the stock Ruby 12AX7 tube in my Bellaria VP-130 with this after reading that my VP-130 was designed for the Sovtek 12AX7LPS but cut costs by putting in the Ruby 12AX7. I noticed a big difference in the sound stage and transparency. My vinyl always sounded a little muted and this tube...Hello , Don't the trolls get you down ! I have also messed around with similar high mu valves , in my case I compared 7F7 (loctal 6SL7) to 6GK5 , ECC83 and 5755 .

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Harga: buffer preamp tube 6J1 with tone controlRp500.000: Harga: LJ PT38 Power Trafo for Tube Preamp 12AU7 12AX7 200V 225V 250V non-CTRp250.000: Harga: UPGRADE preamp buffer tube / tabung pre amplifier amp 6j1 sdh disolderRp250.000: Harga: preamp buffer tube / tabung pre amplifier amp diy 6j1 (sudah disolder)Rp160.000 The Vacuum tube 6J1 is made in China. They are NOS(Nes Old Stock), they are New, but there is not a original box. It was made in 1984, oh, so old, if you love the antique (curio) tubes made in China, get it. The price is for 1 piece of tube.

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Gibson Tube Amp Specifications ... GA-35RVT Lancer: 2-6EU7, 12AX7, 2-12AU7, 2-7591, 0A2 (correspond to Epiphone EA-16RVT Regent) Demonstration and tear down of this little vacuum tune preamp. It sounds absolutely fantastic, and will make give any sound system that warm tube sound that ... 12ax7 Disclaimer Submit a tube. Produced in Canada, 1954, O-Getter Halo, Ribbed / Scale 14mm Matte Grayplate. ... Etched code on Tube: I65 r4H5 : Factory Code: r ...

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We've drifted right away from the subject of 6DJ8 vs 12AX7 Both can sound well, its how you set them up that matters. I might probably say the 'DJ8 has a hard cold sound in comparison to the 'AX7. In preamps, the brand of a given type type makes a diffeence to the sound; a NOS Seimans DJ8 probably will sound different, maybe better than TWIN TRIODE, 12AX7 datasheet, 12AX7 circuit, 12AX7 data sheet : GEC, alldatasheet, datasheet, Datasheet search site for Electronic Components and Semiconductors ...

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Thus, a 12AX7 input tube will not add much more open-loop gain than a 6CG7 would produce. In other words, the XPP circuit is more of an output stage than a complete amplifier. The Gomes amplifier also uses four triodes and it falls somewhere in between an SRPP and the XPP amplifier in functioning. อเมริกัน Amperex 6922/ECC88 หลอดตรงรุ่น 6DJ8/6N11/E88CC/7308 พิษเสียงหลอด,ซื้อจากผู้ขายในจีนและทั่วโลก เพลิดเพลินกับการจัดส่งฟรี การลดราคาในเวลาจำกัด การส่งคืนที่ ...

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Oct 10, 2020 · Is it fine to put a 6922 tube into a pre-amp that is using 12ax7 tube, the shape is the same, same amount of pins, so my question is can I? I know each tube has different characteristics, but generally speaking am I bound to run into some problems doing that, or is it a NO-NO altogether? Sep 18, 2016 · Sep 18, 2016 - 12AU7 / 12AX7 Tube Preamplifier Power Supply Schematic.

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Psvane KT88-TII vs. Shugang Treasure KT88-Z vs. original British Mullard comparison Recently I had the opportunity to compare two very interesting Chinese quads with a quad of vintage Mullard KT88. I have no vested interest in Psvane, Shugang or Grant Fidelity nor were any of these tubes given to me.

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Review of the JJ Electronics E83CC (12AX7) Frame Grid Tube. This recreation of the E83CC has been designed with a frame grid to help ensure low noise and microphonics. Specifically designed for audio uses, the E83CC is a super quiet 12AX7 so you place this tube anywhere you find a 12AX7 being used. First a few questions I have been asked.