Continue shopping “PY500A ELECTRON VACUUM TUBE VALVE USED NO BOX” has been added to your cart. Product Price Quantity Subtotal × PY500A ELECTRON VACUUM TUBE VALVE USED NO BOX $9.49 PY500A ELECTRON VACUUM TUBE VALVE USED NO BOX quantity $9.49 Coupon: Apply coupon Update cart Cart totals Subtotal $9.49 Total $9.49 Proceed to checkout