6754

6754 has no equivalent designation confirmed by the archive.

Description

The 6754 is a reliable hard glass miniature full-wave rectifier. It is one of the Bendix Red Bank line of reliable vacuum tubes, specifically designed for aircraft, military and industrial applications.

Construction

The 6754 has a hard glass (nonex) bulb and stem with nickel pins. The bulb is of type T61/2 and the base is Pin Miniature Nonex Glass with gold plated pins. The 6754 employs pressed ceramic spacers, instead of micas, for element separation, and uses conventional micas to snub the tube structure with respect to the bulb. Each tube is given a 45-hour run-in under various overload, vibration, and shock conditions.

Ratings

The maximum overall length of the 6754 is 2¾ inches, and the maximum seated height is 2½ inches. The tube can be mounted in any position. Maximum ratings include an altitude of 80,000 feet, a bulb temperature of 300°C, and an impact shock of 500 G. The life expectancy is 10,000 hours. The heater voltage is 6.3 volts with a heater current of 1.0 amp. The peak inverse voltage is 1450 volts, the peak plate current per plate is 330 mA, and the peak surge current per plate is 1.1 amps. The maximum DC heater-cathode potential is 500 volts, and the cathode heating time is 45 seconds.

Operating Characteristics

The Bendix datasheet for the 6754 gives a maximum DC output current of 100 mA. DC output voltages at full-load current are 325 volts with capacitor input and 385 volts with choke input; at half-load current they are 375 volts with capacitor input and 395 volts with choke input. Conservative operating conditions given include a heater voltage of 6.3 V ± 2% and an output current per tube of 85 mA; typical operating conditions give an output current per tube of 90 mA.

Original manufacturer datasheets for 6754, hosted by Frank Philipse's Electron Tube Data sheets.

Documents held here and used to write this page.

• RELIABLE HARD GLASS MINIATURE FULL-WAVE RECTIFIER