Marconi U50 Power X3 For leak, Dynatron Valve Tube Amplifier KT66 EL34 PX4 PX25
Osram, Marconi U50 Power Valves x3. Black plate, 4 Pin Black base, Tested working, used condition. Please do not hesitate to ask any questions. This item is in the category "Sound & Vision\Vintage Sound & Vision\Vintage Parts & Accessories\Valves & Vacuum Tubes".furniture" and is located in this country: GB.