A pentode is an electronic device having five electrodes. The term most commonly applies to a three-grid amplifying vacuum tube or thermionic valve that...

A pentode transistor is any transistor having five active terminals. One early pentode transistor was developed in the early 1950s as an improvement over...

pentode, R8 1S6 – Diode, pentode, R8 1T6 – Diode, pentode, R8 1V5 – Power pentode, R8 1V6 – Triode-pentode converter, FL 1W5 – Sharp-cutoff pentode,...

KL1 – Power pentode KL2 – Power pentode KL4 – Power pentode KL5 – Power pentode KL35 – 340 mW Power pentode KLL32 – 1.2W Dual power pentode KY80 = U26...

frequency. The beam tetrode produces greater output power than a triode or pentode with the same anode supply voltage. The first beam tetrode marketed was...

data sheets often use the terms beam pentode or beam power pentode instead of beam power tube, and use a pentode graphic symbol instead of a graphic symbol...

(Mullard–Philips tube designation EL90) is a miniature 7-pin (B7G) audio power output pentode vacuum tube with ratings virtually identical to the 6V6 at 250 V. It was...

The EL34 is a thermionic vacuum tube of the power pentode type. The EL34 was introduced in 1955 by Mullard, who were owned by Philips. The EL34 has an...

was quickly superseded by the rf pentode, while the latter was initially developed as an alternative to the pentode as an audio power amplifying device...

The EF86 is a high transconductance sharp cutoff pentode vacuum tube with Noval (B9A) base for audio-frequency applications. It was introduced by the...