Looking for more warmth and definition from your V3? This is the Standard Retube Kit for the Carvin V3. The preamp section uses five ECC83S's with one balanced for the phase inverter in V5. The default power tubes are the JJ Electronic E34L’s but you can configure this kit to use the JJ EL34II's, EL34’s, KT77’s, Big Bottle 6CA7’s, 5881's or the JJ 6L6GC's by clicking on the "Customize" button.
These are adjustable bias amps and all you need to check and adjust the bias is a Multimeter if you're using the Carvin method. A more accurate method is to use a bias probe and a Multimeter, or our all-in-one Eurotubes "Pro One" bias probe that reads both the plate current and the plate voltage simultaneously. These are available under the "Related Products" tab.
You can use our Carvin bias video for reference which we did on a V3. The video below explains the difference between bias probe types.