Looking to warm up your 2212RC or 22H? This is our Standard Retube Kit for the Jet City 2212RC Combo and 22H Amps. It uses five ECC83S's with one being current balanced for the phase inverter in V5. The default power tubes are a matched pair of the JJ EL84's but you can configure this kit to use the JJ EL844's to drop the power output a couple decibels by clicking on the "Customize" button!