Continue shopping “UCH81 ELECTRON VACUUM TUBE VALVE TESLA” has been added to your cart. Product Price Quantity Subtotal × UCH81 ELECTRON VACUUM TUBE VALVE TESLA $8.67 UCH81 ELECTRON VACUUM TUBE VALVE TESLA quantity $8.67 Coupon: Apply coupon Update cart Cart totals Subtotal $8.67 Total $8.67 Proceed to checkout