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Vacuum Tube - 12BH7, Electro-Harmonix

Pictured: Regular

Pictured: Gold

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SKU:	T-12BH7-EH
Item ID:	005055

Starting at: $17^.95

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Type

Preamplifier Gold Pin

Superior medium-mu twin triode driver tube for hifi use. 3.5 watts dissipation per plate. New design of excellent quality

Part Numbers
Pin Type	Our Part Number	UPC/EAN
Regular	T-12BH7-EH	609722129770
Gold	T-12BH7-GOLD-EH	841358101816

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Specifications, Files, and Documents

Specification Sheet for Regular (T-12BH7-EH)

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Product Measurements by Type (click to expand)

Product Measurements by Type
Amplification Factor		16.5
Body Height		2.374 in.
Capacitance, Plate to Plate		0.8 pF
Capacitance, grid to plate		2.6 pF
Capacitance, input		3.2 pF
Capacitance, output		0.5 pF
Cathode Current (I_k)		20 mA
Grid Circuit Resistance (R_g), Cathode Bias		1.0 MΩ
Grid Circuit Resistance (R_g), Fixed Bias		0.25 MΩ
Grid Voltage (U_g)		-10.5 V
Heater Cathode Voltage, Negative		200 V
Heater Cathode Voltage, Positive		100 V
Heater Current		300 / 600 mA
Heater Voltage		6.3 / 12.6 V
Heater Warmup Time		11 s
Item Diameter		0.875 in.
Item Height		2.625 in.
Plate Current (I_a)		11.5 mA
Plate Dissipation (W_a)		3.5 W
Plate Resistance (R_a)		5.3 kΩ
Plate Voltage (U_a)		≤ 300 V, 250 V typical
Transconductance (S)		3,100 μmhos

Packaging Information
Packaging Dimensions	Gold version	3.38 in. × 1 in. × 1 in.
Packaging Dimensions	Regular version	1 in. × 1 in. × 3.5 in.
Weight (Packaging)	Gold version	0.042 lbs.
Weight (Packaging)	Regular version	0.04 lbs.

Product Measurements by Item (click to expand)

Product Measurements by Item
T-12BH7-GOLD-EH - Gold version	Amplification Factor	16.5
	Body Height	2.374 in.
	Capacitance, Plate to Plate	0.8 pF
	Capacitance, grid to plate	2.6 pF
	Capacitance, input	3.2 pF
	Capacitance, output	0.5 pF
	Cathode Current (I_k)	20 mA
	Grid Circuit Resistance (R_g), Cathode Bias	1.0 MΩ
	Grid Circuit Resistance (R_g), Fixed Bias	0.25 MΩ
	Grid Voltage (U_g)	-10.5 V
	Heater Cathode Voltage, Negative	200 V
	Heater Cathode Voltage, Positive	100 V
	Heater Current	300 / 600 mA
	Heater Voltage	6.3 / 12.6 V
	Heater Warmup Time	11 s
	Item Diameter	0.875 in.
	Item Height	2.625 in.
	Plate Current (I_a)	11.5 mA
	Plate Dissipation (W_a)	3.5 W
	Plate Resistance (R_a)	5.3 kΩ
	Plate Voltage (U_a)	≤ 300 V, 250 V typical
	Transconductance (S)	3,100 μmhos
T-12BH7-EH - Regular version	Amplification Factor	16.5
	Body Height	2.374 in.
	Capacitance, Plate to Plate	0.8 pF
	Capacitance, grid to plate	2.6 pF
	Capacitance, input	3.2 pF
	Capacitance, output	0.5 pF
	Cathode Current (I_k)	20 mA
	Grid Circuit Resistance (R_g), Cathode Bias	1.0 MΩ
	Grid Circuit Resistance (R_g), Fixed Bias	0.25 MΩ
	Grid Voltage (U_g)	-10.5 V
	Heater Cathode Voltage, Negative	200 V
	Heater Cathode Voltage, Positive	100 V
	Heater Current	300 / 600 mA
	Heater Voltage	6.3 / 12.6 V
	Heater Warmup Time	11 s
	Item Diameter	0.875 in.
	Item Height	2.625 in.
	Plate Current (I_a)	11.5 mA
	Plate Dissipation (W_a)	3.5 W
	Plate Resistance (R_a)	5.3 kΩ
	Plate Voltage (U_a)	≤ 300 V, 250 V typical
	Transconductance (S)	3,100 μmhos

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