Original Dynaco ST-70...Recently serviced and upgraded including new can capacitor, new bias supply, CL-90 Thermistor & Rectifier diode modification. Cosmetically a solid 7 to 8.....Includes new production Brown cover, US made GZ34 rectifier tube and 7199 tubes. Also....a strong matched quad set of original Telefunken EL34 tubes. Includes a (30) day warranty on the amplifier only (not tubes) SALE PRICE $700.00 + shipping. Call or Email for availability & payment terms.