Vacuum Tube - 5751, JJ Electronics
The JJ Electronic 5751 is a dual triode that can be used in place of most 12AX7 circuits. The rugged build of this tube and reduced gain (30% less than a 12AX7) can improve headroom and give better control in high gain stages allowing users to more easily dial in sweet spots. The JJ 5751 features a smooth and balanced tone and a detailed response with low noise and low microphonics.
SKU:
T-5751-JJ
Item ID:
008542
UPC/EAN:
609722134255
JJ Electronics Part Number:
5751
Brand:
JJ Electronics
Type:
Body Height | 49.2 mm | |
Filament Current (If) | 350 / 175 mA | |
Filament Voltage (Uf) | 6.3 / 12.6 V | |
Gain (μ) | 70 | |
Grid Voltage (Ug) | ≥ -50 V, -1 V typical | |
Grid capacitance (cg1) | 1.6 pF | |
Grid to Plate Capacitance (ca/g) | 1.7 pF | |
Internal Resistance (Ri) | 58 kΩ | |
Item Diameter | 22 mm | |
Item Height | 56.3 mm | |
Plate Capacitance (ca) | 0.33 pF | |
Plate Current (Ia) | 0.8 mA | |
Plate Dissipation (Wa) | ≤ 1 W | |
Plate Voltage (Ua) | ≤ 300 V, 100 V typical | |
Transconductance (S) | 1.2 mA/V |
Packaging Dimensions | 0.9 in. × 0.9 in. × 2.3 in. | |
Weight (Packaging) | 0.05 lbs. |
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Specifications, Files, and Documents
Questions and Answers
Click each question to see its answers.
1 answers
Is the P-ST9-600 9-pin mini socket the correct socket for a 5751 JJ preamp tube?
Asked by mikeb4 on December 29th, 2015.
Yes, the P-ST9-600 socket is compatible. Depending on your needs and specifications most 9-pin miniature sockets will work.
1 answers
What is the correct socket for the 5751 JJ preamp tube?
Asked by mikeb4 on December 29th, 2015.
Depending on your needs and specifications most 9-pin miniature sockets will work.
1 answers
Will these work with the budgie tube phono preamp?
Asked by Anonymous on May 12th, 2017.
If your amp calls for a 12AX7 the 5751 should work as it is a compatible tube.
Product Reviews
Bought a couple of these to use in the preamp of my Orange OR-15. I really like the sound and they give you just a little more headroom range on the gain knob.
So far I'm pretty pleased. Running it in V1 to calm down the preamp drive in a 15w tube combo. Definitely does the trick. Going to have to play with the other tubes a bit because the volume took a noticeable step back. Running with a JJs 12AX7MG in V2 and 12AT7 in the phase inverter.
I intended to tone down the gain level of my Fender HRD to lower the V1 gain level and move it to a later stage. proud to say mission accomplished. 5751 gets it done!
I use a 5751 in the v1 on a Fender Blues Deluxe ri. And this has made the clean channel warm and Clean.
I'm currently using one of these as V1 in a Peavey Classic 50 and it REALLY nails the Fender cleans and twang and quack, all while working well with my NOS 12AD7 in V2 for lead distortion.