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The metal tube technology utilized for the 6L6 had been developed by General Electric and introduced in April 1935, with RCA manufacturing the metal envelope tubes for GE at that time. [8] Some of the advantages of metal tube construction over glass envelope tubes were smaller size, ruggedness, electromagnetic shielding and smaller ...
Trainwreck amplifiers are housed in their signature polished wood cabinets. By customer request, a custom engraving can be added to the control panel. The amps notably lack a carrying handle; an aesthetic choice made by Ken. They also lack normal serial numbers, instead being engraved with a female name.
6V6 – Metal jacketed envelope. The metal envelope of 6V6 is connected to pin 1 of the base, and was normally used as a ground. Pin 1 of the other members of the 6V6 family of tubes are usually not internally connected, although some may have the gray RF shield connected. 6V6GT – smaller "Glass Tube" T-9 envelope.
Vintage Series changed to a solid state pre-amp & a Master Volume (which is the easy way to tell if the amp has 6C10 pre-amp or not without removing the back panel to access the chassis), the solid state preamps and 6L6GC power tubes.
The pentode (called a triple-grid amplifier in some literature [2]) was developed from the screen-grid tube or shield-grid tube (a type of tetrode tube) by the addition of a grid between the screen grid and the plate. The screen-grid tube was limited in performance as an amplifier due to secondary emission of electrons from the plate. [3]
All types of bass amps and cabinets are designed to be transportable to shows and recording studios, and as such, most have various features to protect the cabinet (e.g., metal or plastic corner protectors) and speakers (a plastic screen or metal grille) during transportation and move the equipment (a single carry handle is standard for ...