Super bird
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Myles, I have a 65 amps London pro. I was wondering if there were any improvements I could make to the preamp or power amp tubes? Currently it has a new production tung sol ef806, jj ecc803, tung sol 12ax7 phase Inverter. JJ el84 power tubes. I believe these were what it came with from the factory, is it best to leave these in or use some nos options? Thanks!