Vacuum Tube - ECC823, JJ Electronics, Dual Triode

JJ Electronics
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Vacuum Tube - ECC823, JJ Electronics, Dual Triode

$12.95
In stock

In the ECC823, Section 1 of the tube (pins 6, 7, and 8) is the low gain 12AU7/ECC82 spec (gain factor 17) and Section 2 (pins 1, 2, and 3) is the high gain 12AX7/ECC83 spec (gain factor 100).

ECC823 (T-ECC823-JJ)
Section 1 Section 2
Pins 6, 7, 8 1, 2, 3
Gain Factor of 17 Factor of 100
Spec 12AU7/ECC82 12AX7/ECC83
ECC832 (T-12DW7-JJ-X)
Section 1 Section 2
Pins 6, 7, 8 1, 2, 3
Gain Factor of 100 Factor of 17
Spec 12AX7/ECC83 12AU7/ECC82
RoHS Compliant
SKU:
T-ECC823-JJ
Item ID:
004834
UPC/EAN:
841358102363
Brand:
JJ Electronics
Product Measurements
Body Height49.2 mm
Cathode Current, system I (Ik)≤ 8 mA
Cathode Current, system II (Ik)≤ 20 mA
Filament Current (If)300 / 150 mA
Filament Voltage (Uf)6.3 / 12.6 V
Gain, System I (μ)100
Gain, System Ii (μ)17
Grid Resistance, system I (Rg)2.2 MΩ
Grid Resistance, system II (Rg)1 MΩ
Grid Voltage, system I (Ug)≥ -50 V, -2 V typical
Grid Voltage, system II (Ug)≥ -50 V, -8.5 V typical
Heater to cathode resistance, system I (Rk/f)150 kΩ
Heater to cathode resistance, system II (Rk/f)150 kΩ
Heater to cathode voltage, system I (Uk/f)≤ 180 V
Heater to cathode voltage, system II (Uk/f)≤ 180 V
Internal Resistance, system I (Ri)62.5 kΩ
Internal Resistance, system II (Ri)7.7 kΩ
Item Diameter22 mm
Item Height56.3 mm
Plate Current, system I (Ia)1.2 mA
Plate Current, system II (Ia)10.5 mA
Plate Dissipation, system I (Wa)≤ 1 W
Plate Dissipation, system II (Wa)≤ 2.75 W
Plate Voltage (Ua)≤ 300 V, 250 V typical
Transconductance, system I (S)1.6 mA/V
Transconductance, system II (S)2.2 mA/V
Packaging Information
Packaging Dimensions0.875 in. × 0.875 in. × 1.25 in.
Weight (Packaging)0.05 lbs.

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Questions and Answers

Click each question to see its answers.
Asked by Anonymous on October 12th, 2017.
Matt H
October 12th, 2017
At this time we do not offer balancing or matching services for preamp tubes.
Asked by Anonymous on October 12th, 2017.
Matt H
October 12th, 2017
Yes, this is much like a ECC832/12DW7 but reversed. The first stage would be high gain and the second stage lower gain.
Asked by Anonymous on September 2nd, 2018.
BradWbr
September 5th, 2018
Staff Member
Although it can be interpreted in the ECC832 description that the first three pins are the high gain (12AX7) side, this isn't accurate. The first three pins of the ECC832 are the 12AU7 and pins 6, 7, and 8 are the high gain (12AX7) side of that tube. We hope this clears up any confusion.

Product Reviews

5.00 out of 5 based on 2 reviews
- January 27th, 2019
5 out of 5

Try My Current DSL40C Tube Load-Out. All Tubes Purchased Here:

V1 - JJ-ECC823
V2 - JJ-5751
V3 - JJ-ECC83-MG
V4 - TAD 7025-WA

- January 27th, 2019
5 out of 5

Bought this tube on a recommendation from a colleague. It drastically dropped the gain factor on my Marshall DSL40C without reducing gain on the 'green' channel. It dramatically smoothed out the 'red' channel and allowed more saturation without getting muddy. Best ever DSL40C upgrade...

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