Ampex 6973 Monoblock Tube Amplifiers. Power on but Without tubes and untested. The item "Ampex 6973 Monoblock Tube Amplifiers (pick up only)" is in sale since Friday, July 16, 2021. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps".The seller is "ivan69235816_8" and is located in San Francisco, California. This item can't be shipped, the buyer must pick up the item.