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Vacuum Tube - 7027A, JJ Electronics

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SKU:	T-7027A-JJ
Item ID:	004795

Starting at: $21^.95

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Type

Power

Vacuum Tubes Apex Matched

The JJ Electronic 7027A offers the same reliability and tone as the JJ 6L6GC but with the correct pinout for vintage amplifiers that use 7027 tubes like older Ampegs. At 30W, this tube delivers plenty of headroom. The highs are clear and responsive with warm mids and tight solid lows. Known for their reliability and articulation, the JJ 7027A is a great option guitar amplifiers and Hi-Fi stereo equipment.

Matched versions of this tube use Apex Matching

Part Numbers
Single or Matched	Our Part Number	UPC/EAN
Apex Matched Pair	T-7027A-JJ-MP	609722122894
Apex Matched Quad	T-7027A-JJ-MQ	609722122900
Single	T-7027A-JJ	609722122887

RoHS Compliant

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Specifications, Files, and Documents

Specification Sheet

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Product Measurements by Type (click to expand)

Product Measurements by Type
Body Height		100 mm
Filament Current (I_f)		0.9 A
Filament Voltage (U_f)		6.3 V
Grid Current 2, single tube (I_g2)		5 mA
Grid Voltage 1, push-pull (U_g1)		-17.5 V typical
Grid Voltage 1, single tube (U_g1)		-14 V typical
Grid Voltage 2, push-pull (U_g2)		≤ 450 V, 270 V typical
Grid Voltage 2, single tube (U_g2)		≤ 450 V, 250 V typical
Grid capacitance (c_g1)		12.5 pF
Grid current 2, push-pull (I_g2)		11 mA
Grid to Plate Capacitance (c_a/g)		1.5 pF
Item Diameter		38 mm
Item Height		115 mm
Plate Capacitance (c_a)		10 pF
Plate Current, push-pull (I_a)		134 mA
Plate Current, single tube (I_a)		72 mA
Plate Dissipation (W_a)		≤ 30 W
Plate Voltage, push-pull (U_a)		≤ 450 V, 270 V typical
Plate Voltage, single tube (U_a)		≤ 450 V, 250 V typical

Packaging Information
Packaging Dimensions	Apex Matched Pair version	4.8 in. × 3.3 in. × 1.6 in.
	Apex Matched Quad version	4.8 in. × 3.3 in. × 3.3 in.
	Single version	1.6 in. × 1.6 in. × 4.6 in.
Weight (Packaging)	Apex Matched Pair version	0.292 lbs.
	Apex Matched Quad version	0.584 lbs.
	Single version	0.146 lbs.

Product Measurements by Item (click to expand)

Product Measurements by Item
T-7027A-JJ-MP - Apex Matched Pair version	Body Height	100 mm
	Filament Current (I_f)	0.9 A
	Filament Voltage (U_f)	6.3 V
	Grid Current 2, single tube (I_g2)	5 mA
	Grid Voltage 1, push-pull (U_g1)	-17.5 V typical
	Grid Voltage 1, single tube (U_g1)	-14 V typical
	Grid Voltage 2, push-pull (U_g2)	≤ 450 V, 270 V typical
	Grid Voltage 2, single tube (U_g2)	≤ 450 V, 250 V typical
	Grid capacitance (c_g1)	12.5 pF
	Grid current 2, push-pull (I_g2)	11 mA
	Grid to Plate Capacitance (c_a/g)	1.5 pF
	Item Diameter	38 mm
	Item Height	115 mm
	Plate Capacitance (c_a)	10 pF
	Plate Current, push-pull (I_a)	134 mA
	Plate Current, single tube (I_a)	72 mA
	Plate Dissipation (W_a)	≤ 30 W
	Plate Voltage, push-pull (U_a)	≤ 450 V, 270 V typical
	Plate Voltage, single tube (U_a)	≤ 450 V, 250 V typical
T-7027A-JJ-MQ - Apex Matched Quad version	Body Height	100 mm
	Filament Current (I_f)	0.9 A
	Filament Voltage (U_f)	6.3 V
	Grid Current 2, single tube (I_g2)	5 mA
	Grid Voltage 1, push-pull (U_g1)	-17.5 V typical
	Grid Voltage 1, single tube (U_g1)	-14 V typical
	Grid Voltage 2, push-pull (U_g2)	≤ 450 V, 270 V typical
	Grid Voltage 2, single tube (U_g2)	≤ 450 V, 250 V typical
	Grid capacitance (c_g1)	12.5 pF
	Grid current 2, push-pull (I_g2)	11 mA
	Grid to Plate Capacitance (c_a/g)	1.5 pF
	Item Diameter	38 mm
	Item Height	115 mm
	Plate Capacitance (c_a)	10 pF
	Plate Current, push-pull (I_a)	134 mA
	Plate Current, single tube (I_a)	72 mA
	Plate Dissipation (W_a)	≤ 30 W
	Plate Voltage, push-pull (U_a)	≤ 450 V, 270 V typical
	Plate Voltage, single tube (U_a)	≤ 450 V, 250 V typical
T-7027A-JJ - Single version	Body Height	100 mm
	Filament Current (I_f)	0.9 A
	Filament Voltage (U_f)	6.3 V
	Grid Current 2, single tube (I_g2)	5 mA
	Grid Voltage 1, push-pull (U_g1)	-17.5 V typical
	Grid Voltage 1, single tube (U_g1)	-14 V typical
	Grid Voltage 2, push-pull (U_g2)	≤ 450 V, 270 V typical
	Grid Voltage 2, single tube (U_g2)	≤ 450 V, 250 V typical
	Grid capacitance (c_g1)	12.5 pF
	Grid current 2, push-pull (I_g2)	11 mA
	Grid to Plate Capacitance (c_a/g)	1.5 pF
	Item Diameter	38 mm
	Item Height	115 mm
	Plate Capacitance (c_a)	10 pF
	Plate Current, push-pull (I_a)	134 mA
	Plate Current, single tube (I_a)	72 mA
	Plate Dissipation (W_a)	≤ 30 W
	Plate Voltage, push-pull (U_a)	≤ 450 V, 270 V typical
	Plate Voltage, single tube (U_a)	≤ 450 V, 250 V typical

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Product Reviews

3.00 out of 5 based on 1 reviews

3 out of 5

I will say these can handle 7027 voltages, but they don't quite cut it as a 7027A. I find it hard to believe JJ can make a 14 watt 6V6GTA, and then fail so miserably with a 7027A. If your amp takes 7027As and is running them at high voltages, consider finding NOS tubes or dialing back the B+ with a MOSFET regulator. If JJ would call this a 7027 I'd give it a better rating. These are like all the larger JJ Pentodes. If you crack one open with a hammer they all share the same cathode assembly.

Seth Burgin - February 18th, 2015