Vacuum Tube - 6973, Electro-Harmonix

Vacuum Tube - 6973, Electro-Harmonix image 1
Click to zoom in
Customer Images:
No Images yet! Submit a product image below!

Vacuum Tube - 6973, Electro-Harmonix

Starting at: $20.45
In stock

Electro-Harmonix 6973 Power Tube Beam power amplifier used in vintage Gretsch and Magnatone amplifiers. This is a real 6973, not a rebrand of a "close" tube.

RoHS Compliant
Item ID:
Part Numbers
Single or MatchedOur Part NumberUPC/EAN
Matched PairT-6973-EH-MP609722124133
Matched QuadT-6973-EH-MQ609722124140
Product Measurements
Body Height2.812 in.
Bulb Temperature250°C
Capacitance, Grid 1 to Plate0.4 pF
Capacitance, input9.0 pF
Capacitance, output6.0 pF
Cathode Current, Max Signal, Class AB95 mA
Cathode Current, Zero Signal, Class AB62 mA
Cathode Resistor, Class AB355 Ω
Grid 1 Resistance, Fixed Bias0.5 MΩ
Grid 1 Resistance, Self Bias1 MΩ
Grid 1 Voltage, Class Ab-33.5 V
Grid 2 Input, Linear1.75 W
Grid 2 Input, Pentode2 W
Grid 2 Voltage, Pentode330 V
Harmonic Distortion, Class AB1.5 %
Heater-Cathode Voltage, negative (Uh/k-)200 V
Heater-Cathode Voltage, positive (Uh/k+)100 V
Heater Current450 mA
Heater Voltage6.3 V
Item Diameter0.875 in.
Item Height3.062 in.
Load Resistance, Plate to Plate, Class AB12.5 kΩ
Peak AF Grid 1 Control Voltage, Class AB33.5
Plate Dissipation (Wa)12 W
Plate Supply Voltage, Class AB375 V
Plate Voltage, pentode (Ua)440 V
Plate and Grid 2 Voltage, Linear410 V
Power Output, Class AB18.5 W
Packaging Information
Packaging DimensionsMatched Pair version3.4 in. × 2.1 in. × 1.1 in.
Matched Quad version3.4 in. × 2.1 in. × 2.1 in.
Single version1.1 in. × 1.1 in. × 3.4 in.
Weight (Packaging)Matched Pair version0.092 lbs.
Matched Quad version0.184 lbs.
Single version0.046 lbs.

My Project Lists

You must be logged in to add items to a project list.

Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet400.97 KB

Questions and Answers

Click each question to see its answers.
Asked by Anonymous on October 22nd, 2018.
October 23rd, 2018
Staff Member
Yes, we ship internationally. Pairs and quads are sold as matched sets.

Product Reviews

No product reviews yet! Be the first!
Don't see what you're looking for? Send us your product suggestions!