Need all the gain you can get from your 50 Caliber Plus? This is our High Gain Option Retube Kit and it contains three handpicked High Gain ECC83S's for V1 thru V3, a standard ECC81 for V4 and a balanced ECC83S for the phase inverter in V5. Scorchin!
The default power tubes are a matched pair of the JJ 6L6GC’s but you can configure this kit to use the JJ 5881’s by clicking on the "Customize" button!
If your amp is the combo version and you choose to go with the 6L6GC's then please let us know in the comments section and we will ship your kit with the special Double Mica 6L6GC’s which will greatly reduce any tube rattle.