Yes they are Nixi IN-13 tubes and can be bought for $5 here: http://www.tubes-store.com/product_info.php?products_id=40 But you need a 150v DC power converter to run them.
Yes they are Nixi IN-13 tubes and can be bought for $5 here: http://www.tubes-store.com/product_info.php?products_id=40 But you need a 150v DC power converter to run them.
