For sale Graaf GM20 Power amplifier In good cosmetic condition and recently fitted with all new valves less than 10 hours these include a matched quad of 6c33c, a quad of EF184 and a pair of Tesla E88cc.

Recently serviced and upgraded bias trim pots as per John Caswell's recommendation who has spent a lot of time with this power amp. This modification prevents the amplifier bias drifting and is incredibly stable.

I have this currently in my system playing and it sounds phenomenal.

I have several matched Quads of 6c33c tubes available to the new owner by separate negotiation.

Anyone who is ...