Vacuum Tube - 12AX7 / B759, Genalex Gold Lion
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 audiophiles who demand the highest quality sound. The reissue Genalex Gold Lion ECC83/B759 recreates the sound signature of the original. This tube features balanced sections and gold plated pins.
SKU:
T-12AX7-GOLD-GEN
Item ID:
039540
UPC/EAN:
841358101779
Brand:
Genalex
Type:
Accessory Items:
Amplification Factor | 85 - 115 | ||
Capacitance, Cathode to Heater | 5.0 pF | ||
Capacitance, Plate to Plate | 0.6 pF | ||
Capacitance, input | 1.6 pF | ||
Capacitance, output | 0.46 pF | ||
Cathode to Heater Voltage | 200 V | ||
Grid Circuit Resistance (Rg), Automatic Bias | 2.2 MΩ | ||
Grid Circuit Resistance (Rg), Fixed Bias | 1.2 MΩ | ||
Grid Reverse Current | 0.2 μA | ||
Heater Current | 135 mA - 275 mA | ||
Heater Voltage | 6.0 - 6.6 V / 12.0 - 13.2 V | ||
Plate Current (Ia) | 9 mA | ||
Plate Dissipation, per triode (Wa) | 1.2 W | ||
Plate Voltage (Ua) | 330 V | ||
Structure-borne Noise | 3.5 mv | ||
Transconductance (S) | ≥ 1.4 mA/V |
Packaging Dimensions | 2.75 in. × 1 in. × 1 in. | ||
Weight (Packaging) | 0.0375 lbs. |
Specification Sheet | All Models |
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Product Reviews
I personally found this tube to be a bit dull and stuffy in V1 of my D style amp. Makes a really solid phase inverter though. Sits kind of in between your standard long and short plate 12AX7's and can help to smooth out an otherwise harsh amp. Good tube if a bit pricey.
Great sounding tube. Tried in several different amps so far and worked great in every position
genalex gold lion are the tubes for the price.......AES is the fastest and best prices for tubes. thank you...
These tubes are badass in a bottle. I put them in v1 of my Mesa studio Pre and now I have them in v1 of every preamp and head that I own. I have never heard a studio Pre sound this good. I’ll buy more as soon as you get them.
Sounding great in V1 of my JVM Marshall. Very rich tone!
I had some JJ tubes before this and they did sound great in my custom 20 watt version of a hiwatt custom. One of my preamp tubes went out so I ordered these because i'd been wanting to try them but they were too expensive to justify before and holy crap these things are worth it. My amp was loud before and now its really loud and sounds killer! I highly recommend, well worth the extra money. Going to get power tubes soon from them to try out.
These tubes sound Great! I replaced all of my 12ax7’s in a Marshall jcm2000 dsl 100 and wow! Either it’s been way to long since I replaced tubes or I’m just a lucky guy?! The latter !
I have matched 6550’s pairs and it sounded so good that I haven’t put power tubes in yet... I’ll roll with the tone as is. Don’t want to mess up a good thing! Throw a few “gold pin” in the mix?
Order have been placed, hope get it soon
I have been using these tubes in every amp I own. They seem to push the power tubes better than any other I have used (whatever came OEM). They also seem to make the amp sound fuller and richer and more robust as far as I can tell. They also appear to be very durable. I Run my amps with EVERY knob cranked up as far as will go (and then use an attenuator to control the volume). I haven't had one fail yet.
I was looking foward to trying this tube out in V1 of an amp (S/E el34 based, 3 preamp stage) that I just built/designed. Unfortunately, it was extremely microphonic and completely unusable in this position; V2 it was great, but I prefer a Mullard in this stage (CF). I'm NOT knocking this product, but in a high gain amp at V1 I'd steer clear. Later positions would be better....lots of gain, good freq. response, but WAY too senitive for my build. Also, guys, if you intend on putting it in a 'normal' plexi, or bassman design, i.e. 2 preamp stages, not 3) this thing might rock! I tend to agree with Blackplates rewiew of this tube...it might REALLY work for you, or REALLY bummed you out. I was bummed... but as I said, I believe it can work well, but in the right position, with the right amp design.
Steve G. Ft.Worth,TX