I have no means or knowledge to test thesetubes.  Lot includes two Super Silvertone 35/51, a Knight 24A and a Tong-Sol 24. One silvertone has small crack in base. Rest look good . No cracks or loose at base. Made In USA. Sold as is no returns. Parting out and old radio that has been sitting here for a few years.

See my ebay auctions for more vintage radios.

See photos for more details as they are part of the description.