Aug 3, 2013 · The 6L6GC is rated at 30 watts plate dissipation and 450 -500 plate volts. You can go up from the lower rated 6L6's to a GC variant. But you should not go the other way and use a 6L6, 6L6G, 6L6GA, or 6L6GB to replace a 6L6 GC. In 6V6's the 6V6G, 6V6, 6V6 GT, and 6V6GTA will all handle the same plate voltages and dissipate the same plate wattage.

6L6 is the designator for a beam power tube introduced by Radio Corporation of America in April 1936 and marketed for application as a power amplifier for audio frequencies.

The 6L6 is a rather extended family of beam power pentode tubes, with an octal base. There are both metal and glass envelope styles available in NOS tubes, although current production tubes are glass only.

Title: 6L6 Author: RCA Subject: FP-1999-02-28 Created Date: 2/24/2002 7:46:40 PM

Tube 6L6GA or Röhre 6L6GA ID3922, Beam Power Tube, Octal (Int.Octal, IO) K8A, USA 1935 and shown. Radio tubes are valves.

Jan 22, 2025 · Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application.

The 6L6 employed rapidly-accelerated electrons and short electron paths. This made it efficient but its characteristic had a distinct residual kink. It was a very successful valve but its characteristic was not quite straight enough to give the ultimate in audio quality at …

Dec 14, 2022 · 6l6gb and 5881 have the same ratings. A 6l6gc is rated for higher voltage but will work perfectly fine in a circuit for a 6l6GB or 5881. Just adding to gadget73 comments, from a performance perspective, any 6L6 type will work in your amp.

Aug 30, 2011 · All 6L6s test the same in a tester. This includes 6L6, G, GA, GB, GC, 1622, 5881, 5932, 7581, 7027 (will show some extra "shorts"). 6L6GC, 7027, and 7581A have the highest voltage and power dissipation ratings, but when operated at lower voltages will behave exactly same same as any other 6L6.

In Europe it were the pentodes AL5 (4Vf) and EL5 (6.3Vf), in the USA it was the worlds first and most famous beam-power-tetrode, the 6L6. First it appeared as metal tube, then in several glass versions, e.g. as 6L6GC with 35 watts dissipation.