Power - Pentode Single (NOT beam) (under 10W) vacuum tubes

Pentode

Power pentode with documented Class-A, Class-AB push-pull, and triode-connected audio operating data. Designed for conventional low-frequency power-output stages.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

6M6G power - pentode single (not beam) (under 10w) electronic tube specifications and datasheets.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

B7G

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

Not recorded

Socket

IO

Heater

5.7 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Power pentode designed for radio-frequency amplification, oscillation, modulation, or frequency-multiplier service.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

6RP10 power - pentode single (not beam) (under 10w) electronic tube specifications and datasheets.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Power pentode designed for radio-frequency amplification, oscillation, modulation, or frequency-multiplier service.

Base

Not recorded

Socket

B9A

Heater

13.5 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

Not recorded

Socket

B9A

Heater

27.5 V

Sections

1

Pentode

Power pentode designed for radio-frequency amplification, oscillation, modulation, or frequency-multiplier service.

Base

Not recorded

Socket

Not recorded

Heater

1.25 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

6AE

Socket

B8G

Heater

6.3 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

6AE

Socket

B8G

Heater

6.3 V

Sections

1

Pentode

Frame-grid sharp-cutoff pentode for high-current video-output amplification in color and monochrome television receivers.

Base

Not recorded

Socket

B9A

Heater

7.3 V

Sections

1

Pentode

Russian output pentode for general power-amplifier service with approximately 8 W plate dissipation.

Base

Not recorded

Socket

IO

Heater

7.35 V

Sections

1

Pentode

Mobile-communications power pentode for Class C RF amplification, oscillation, and frequency multiplication to approximately 40 MHz.

Base

Not recorded

Socket

B9A

Heater

13.5 V

Sections

1

Pentode

High-reliability mobile-radio power pentode developed as a rugged replacement for the 12BY7A.

Base

Not recorded

Socket

B9A

Heater

13.5 V

Sections

1

Pentode

Instant-heating RF power pentode for mobile transmitter amplification and frequency doubling to approximately 200 MHz.

Base

Not recorded

Socket

Not recorded

Heater

1.1 V

Sections

1

Pentode

Marconi audio output pentode also characterized for triode-connected power-amplifier operation.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Mazda AC-mains output pentode designed for receiver power stages. Manufacturer data provide electrical ratings, characteristics, and application guidance for conventional audio-frequency output service.

Base

Not recorded

Socket

M7A

Heater

4 V

Sections

1

Pentode

Four-volt directly heated power pentode with manufacturer-published output operating characteristics. Its filamentary cathode and power ratings suit low-frequency receiver output service.

Base

P35

Socket

P8A

Heater

4 V

Sections

1

Pentode

Four-volt indirectly heated power pentode with published output operating characteristics. Designed for conventional receiver audio power amplification using a heater-cathode construction.

Base

P35

Socket

P8A

Heater

4 V

Sections

1

Pentode

Philips pentode documented for amplification or output service with Class-A operating data. Its published ratings support power-capable amplifier operation rather than exclusively small-signal service.

Base

Not recorded

Socket

P8A

Heater

4 V

Sections

1

Pentode

Power pentode designed for audio-output amplification. Manufacturer documentation identifies it as a dedicated low-frequency output tube for driving receiver loads.

Base

P35

Socket

P8A

Heater

4 V

Sections

1

Pentode

Output pentode designed for either radio-frequency or audio-frequency amplification. Its power-capable construction supports load-driving service across both RF and low-frequency applications.

Base

Not recorded

Socket

Not recorded

Heater

2.4 V

Sections

1

Pentode

BL2 power - pentode single (not beam) (under 10w) electronic tube specifications and datasheets.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Pentode

Philips pentode with documented Class-A operating data and published output characteristics. Its manufacturer ratings support low-frequency power-amplifier service rather than ordinary small-signal operation.

Base

A/O

Socket

B4

Heater

4 V

Sections

1

Pentode

Philips pentode variant with published operating points, ratings, and characteristics. Manufacturer data support output-stage power operation, although the surviving source provides limited application narrative.

Base

Not recorded

Socket

B4

Heater

4 V

Sections

1

Pentode

Series-heater power-output pentode documented by Philips with heater data, operating characteristics, limiting ratings, and section-level electrical information for receiver output service.

Base

Not recorded

Socket

B4

Heater

40 V

Sections

1

Pentode

Philips directly heated output pentode with published heater, operating, and limiting data. Its filamentary construction is intended for conventional low-frequency power-output service.

Base

Not recorded

Socket

B4

Heater

4 V

Sections

1

Pentode

Raytheon special-purpose pentode documented in the supplied handbook; available source identifies the device but does not clearly establish a narrower application beyond special-service amplification.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Early European series-heater power pentode for audio-output service in transformerless mains receivers.

Base

Not recorded

Socket

P8A

Heater

13 V

Sections

1

Pentode

Telefunken 200 mA series-heater output pentode providing roughly 1–3 W in AC/DC radio receivers.

Base

Not recorded

Socket

P8A

Heater

24 V

Sections

1

Pentode

High-sensitivity series-heater audio power pentode providing approximately 4 W Class A output in AC/DC receivers.

Base

Not recorded

Socket

IO

Heater

33 V

Sections

1

Pentode

High-sensitivity output pentode for transformerless AC/DC radio equipment, delivering approximately 4 W.

Base

Not recorded

Socket

P8A

Heater

28 V

Sections

1

Pentode

Series-heater audio power pentode supporting single-ended operation and push-pull output up to approximately 13.5 W.

Base

Not recorded

Socket

P8A

Heater

35 V

Sections

1

Pentode

Telefunken directly heated battery output pentode providing approximately 350 mW Class A audio power.

Base

Not recorded

Socket

Not recorded

Heater

1.2 V

Sections

1

Pentode

Subminiature output pentode designed for hearing aids and other very-low-power audio equipment. Its tiny filament demand and compact construction provide useful low-frequency output from miniature battery supplies.

Base

Not recorded

Socket

Not recorded

Heater

1.25 V

Sections

1

Pentode

Battery output pentode for low-frequency power amplification with selectable 1.4 V or 2.8 V filament operation. Its flexible filament arrangement supports portable audio output stages.

Base

Not recorded

Socket

B7G

Heater

2.8 V

Sections

1

Pentode

Battery output pentode designed for low-frequency power amplification. Its directly heated construction provides audio output power in portable receiver and battery-operated equipment.

Base

Not recorded

Socket

B7G

Heater

1.4 V

Sections

1

Pentode

Philips battery output pentode with documented construction, filament data, ratings, characteristics, and operating conditions. Designed for low-frequency power amplification in portable battery equipment.

Base

Not recorded

Socket

B7G

Heater

1.4 V

Sections

1

Pentode

Directly heated Philips power-output pentode with manufacturer-published filament, rating, characteristic, and operating data. Its filamentary cathode suits battery-operated audio output stages.

Base

Not recorded

Socket

Not recorded

Heater

1.2 V

Sections

1

Pentode

Directly heated output pentode for battery receivers with multiple filament connections and documented Class-A and Class-B output conditions. Designed for flexible portable audio power stages.

Base

Not recorded

Socket

Not recorded

Heater

1.4 V

Sections

1

Pentode

Directly heated subminiature output pentode designed for hearing aids. Its tiny filament demand and compact construction provide very-low-power audio output for wearable battery equipment.

Base

Subminiature

Socket

Not recorded

Heater

1.25 V

Sections

1