Slighly more rugged and higher dissipation versions include the 5932, 5881 and 1614. The final variant was the 6L6GC with dissipation increased to 30 watts.
The 5932 shown is a double valve. It has two smaller assemblies connected in parallel in the same envelope. Not all 5932's are made like this.
The 6L6 was the mainstay of the larger Fender amps. The 6L6 is very rugged and even the early ones could withstand plate voltages of over 450 volts, well in excess of the manufacturers maximum.
6L6GA 6L6GB 6L6WGB 5932
5881 6L6GC 1614
|Type||Anode Dissipation (Watts)||Gm (mA/V)||Rp (Ohms)||Max Plate Volts||Typical P-P load for guitar (ohms)|
|5881||23||5.2||48k||360||4k - 6k|