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Vacuum Tube - 12DW7 / ECC832, JJ Electronics, Dual Triode

Pictured: Regular

Pictured: Gold

Pictured: Regular

Pictured: Gold

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Vacuum Tube - 12DW7 / ECC832, JJ Electronics, Dual Triode image 1

Vacuum Tube - 12DW7 / ECC832, JJ Electronics, Dual Triode image 2

Vacuum Tube - 12DW7 / ECC832, JJ Electronics, Dual Triode image 3

Vacuum Tube - 12DW7 / ECC832, JJ Electronics, Dual Triode image 4

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SKU:	T-12DW7-JJ-X
Item ID:	004479

Starting at: $12^.95

Product Options

Gold

are currently out of stock and will be placed on backorder.

View Specifications, Files, and Documents

Type

Gold Pin Triode Preamplifier

In the 12DW7/ECC832, Section 1 of the tube (pins 6, 7, and 8) is the high gain 12AX7/ECC83 spec (gain factor 100) and Section 2 (pins 1, 2, and 3) is the low gain 12AU7/ECC82 spec (gain factor 17).

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

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

Part Numbers
Pin Type	Our Part Number	UPC/EAN	JJ Electronics Part Number
Gold	T-12DW7-GOLD-JJ	609722123495	ECC832 - GOLD
Regular	T-12DW7-JJ	609722123501	ECC832 - 12DW7

RoHS Compliant

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Specifications, Files, and Documents

Specification Sheet for Gold (T-12DW7-GOLD-JJ)

391.18 KB

Specification Sheet for Regular (T-12DW7-JJ)

391.18 KB

Product Measurements by Type (click to expand)

Product Measurements by Type
Body Height		49.2 mm
Cathode Current, system I (I_k)		≤ 8 mA
Cathode Current, system II (I_k)		≤ 20 mA
Filament Current (I_f)		300 / 150 mA
Filament Voltage (U_f)		6.3 / 12.6 V
Gain, System I (μ)		100
Gain, System Ii (μ)		17
Grid Resistance, system I (R_g)		2.2 MΩ
Grid Resistance, system II (R_g)		1 MΩ
Grid Voltage, system I (U_g)		≥ -50 V, -2 V typical
Grid Voltage, system II (U_g)		≥ -50 V, -8.5 V typical
Heater to cathode resistance, system I (R_k/f)		150 kΩ
Heater to cathode resistance, system II (R_k/f)		150 kΩ
Heater to cathode voltage, system I (U_k/f)		≤ 180 V
Heater to cathode voltage, system II (U_k/f)		≤ 180 V
Internal Resistance, system I (R_i)		62.5 kΩ
Internal Resistance, system II (R_i)		7.7 kΩ
Item Diameter		22 mm
Item Height		56.3 mm
Plate Current, system I (I_a)		1.2 mA
Plate Current, system II (I_a)		10.5 mA
Plate Dissipation, system I (W_a)		≤ 1 W
Plate Dissipation, system II (W_a)		≤ 2.75 W
Plate Voltage (U_a)		≤ 300 V, 250 V typical
Transconductance, system I (S)		1.6 mA/V
Transconductance, system II (S)		2.2 mA/V

Packaging Information
Packaging Dimensions	Gold version	1 in. × 1 in. × 2.5 in.
Packaging Dimensions	Regular version	1 in. × 1 in. × 2.4 in.
Weight (Packaging)	Gold version	0.02 lbs.
Weight (Packaging)	Regular version	0.03 lbs.

Product Measurements by Item (click to expand)

Product Measurements by Item
T-12DW7-JJ - Regular version	Body Height	49.2 mm
	Cathode Current, system I (I_k)	≤ 8 mA
	Cathode Current, system II (I_k)	≤ 20 mA
	Filament Current (I_f)	300 / 150 mA
	Filament Voltage (U_f)	6.3 / 12.6 V
	Gain, System I (μ)	100
	Gain, System Ii (μ)	17
	Grid Resistance, system I (R_g)	2.2 MΩ
	Grid Resistance, system II (R_g)	1 MΩ
	Grid Voltage, system I (U_g)	≥ -50 V, -2 V typical
	Grid Voltage, system II (U_g)	≥ -50 V, -8.5 V typical
	Heater to cathode resistance, system I (R_k/f)	150 kΩ
	Heater to cathode resistance, system II (R_k/f)	150 kΩ
	Heater to cathode voltage, system I (U_k/f)	≤ 180 V
	Heater to cathode voltage, system II (U_k/f)	≤ 180 V
	Internal Resistance, system I (R_i)	62.5 kΩ
	Internal Resistance, system II (R_i)	7.7 kΩ
	Item Diameter	22 mm
	Item Height	56.3 mm
	Plate Current, system I (I_a)	1.2 mA
	Plate Current, system II (I_a)	10.5 mA
	Plate Dissipation, system I (W_a)	≤ 1 W
	Plate Dissipation, system II (W_a)	≤ 2.75 W
	Plate Voltage (U_a)	≤ 300 V, 250 V typical
	Transconductance, system I (S)	1.6 mA/V
	Transconductance, system II (S)	2.2 mA/V
T-12DW7-GOLD-JJ - Gold version	Body Height	49.2 mm
	Cathode Current, system I (I_k)	≤ 8 mA
	Cathode Current, system II (I_k)	≤ 20 mA
	Filament Current (I_f)	300 / 150 mA
	Filament Voltage (U_f)	6.3 / 12.6 V
	Gain, System I (μ)	100
	Gain, System Ii (μ)	17
	Grid Resistance, system I (R_g)	2.2 MΩ
	Grid Resistance, system II (R_g)	1 MΩ
	Grid Voltage, system I (U_g)	≥ -50 V, -2 V typical
	Grid Voltage, system II (U_g)	≥ -50 V, -8.5 V typical
	Heater to cathode resistance, system I (R_k/f)	150 kΩ
	Heater to cathode resistance, system II (R_k/f)	150 kΩ
	Heater to cathode voltage, system I (U_k/f)	≤ 180 V
	Heater to cathode voltage, system II (U_k/f)	≤ 180 V
	Internal Resistance, system I (R_i)	62.5 kΩ
	Internal Resistance, system II (R_i)	7.7 kΩ
	Item Diameter	22 mm
	Item Height	56.3 mm
	Plate Current, system I (I_a)	1.2 mA
	Plate Current, system II (I_a)	10.5 mA
	Plate Dissipation, system I (W_a)	≤ 1 W
	Plate Dissipation, system II (W_a)	≤ 2.75 W
	Plate Voltage (U_a)	≤ 300 V, 250 V typical
	Transconductance, system I (S)	1.6 mA/V
	Transconductance, system II (S)	2.2 mA/V

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Product Reviews

5.00 out of 5 based on 4 reviews

5 out of 5

shipped promptly and as described

robert eves - September 9th, 2018

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5 out of 5

This tube was perfect in a Blues Junior cathode follower modification...very nice clear tone, non-microphonic, and worked exactly as planned. Would buy this tube again in a heartbeat...

MTW - December 14th, 2015

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5 out of 5

tubes delivered in great shape, as allways with tubesandmore.com/ Antique Electronic Supply.
great selection on the website too.
thanks

KG67 - November 5th, 2015

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5 out of 5

I bought this as part of a re-tube for a Hot Rod Deluxe, and used it in V2 of the amp. Purchased with it were a 12AT7 (V1), a 12AX7 (V3-Phase invertor), and two matched 6L6GC's. All were JJ tubes. Prior to this re-tube, I had three 12AX7's in the amp. All I can say is WOW! Excellent tone, and volume control that is now manageable. I'm very pleased with the way this tube works in the HRDX. Definitely recommend it.

Also very pleased with Antique Electronic Supply. Easy to order. Quick shippers. I'm a longtime customer and will continue to do business with them.

Rob S - December 15th, 2014