Each has 8 Russian vacuum tubes - Electro Harmonix 6550EH. Serviced in Midwest Audio in Arlington Heights.
If you live in Chicagoland I will deliver them for free. If you live outside Chicagoland I can deliver them for 50 cents per mile.
The item "AUDIO RESEARCH Classic 150 Tube Monoblock Amplifier Pair Serviced" is in sale since Wednesday, January 1, 2020. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps". The seller is "new_old_bor" and is located in Schaumburg, Illinois.
This item can't be shipped, the buyer must pick up the item.