6CV7

6CV7 is also designated EBC41.

The 6CV7 is a double diode high mu triode vacuum tube with a coated unipotential cathode, a glass bulb, and an E8-30 base.

Construction and Mounting

The tube has a maximum overall length of 2-3/8 inches (60 mm), a maximum seated height of 2-1/16 inches (53 mm), and a maximum diameter of 7/8 inch (22 mm). It can be mounted in any position.

Ratings

The 6CV7 operates with a heater voltage of 6.3 volts and a heater current of 0.23 amps. Maximum ratings include a plate supply voltage of 550 volts, a plate voltage of 300 volts, a plate dissipation of 1 watt, a cathode current of 5.0 mA, a grid circuit resistance of 3 megohms with self bias, a voltage between heater and cathode of 100 volts, and an external resistance between heater and cathode of 20,000 ohms. The diode sections have a maximum peak plate voltage of 20,000 volts.

Typical Operation

At a plate voltage of 250 volts, the triode section has a plate current of 1.0 mA, a grid voltage of -3.0 volts, a transconductance of 1,300 µmhos, a plate resistance of 54,000 ohms, and an amplification factor of 70.

Capacitances

Interelectrode capacitances include a triode grid-to-cathode value of 2.75 pF, triode plate-to-cathode of 1.5 pF, triode plate-to-grid of 1.3 pF, diode plate No. 1 to cathode of 0.8 pF, and diode plate No. 2 to cathode of 0.7 pF. Several capacitances are specified as less than a given value, including diode plate No. 1 to triode grid (less than 0.007 pF), diode plate No. 2 to triode grid (less than 0.03 pF), diode plate to triode plate (less than 0.01 pF), triode grid to heater (less than 0.05 pF), diode plate No. 1 to diode plate No. 2 (less than 0.3 pF), diode plate No. 1 to heater (less than 0.1 pF), and diode plate No. 2 to heater (less than 0.05 pF).

Pinout

Pin 1 is the heater, pin 2 is the triode plate, pin 3 is the grid, pin 4 is the internal shield, pin 5 is diode plate No. 2, pin 6 is diode plate No. 1, pin 7 is the cathode, and pin 8 is the heater.

Equivalence is asserted only where the archive's own literature states it directly, in at least 40 separate documents. Tubes that merely substitute in some circuits are not listed here.

Original manufacturer datasheets for 6CV7, hosted by Frank Philipse's Electron Tube Data sheets.

Documents held here and used to write this page.

• EBC 41 Double diode-triode (filed under EBC41)
• CHARACTERISTICS

3 further designations appear alongside 6CV7 in the literature but below the evidence threshold used here, so they are not listed as equivalent.