The Number Of The Beast Robert A Heinlein Fawcett Columbine 0-449-90019-3 GM Delco Tube One drew 21

Tube One drew 21

US Navy markings and excellent flashing

This tube has steel support rods

One is milspec and one is a Cunningham

This new old stock-testing matched pair of RCA 12B4 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

The Number Of The Beast Robert A Heinlein Fawcett Columbine 0-449-90019-3 GM Delco Tube One drew 21This soft cover book is in good condition. The spine is in fine shape with no loose pages. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP TO $250 IN VALUE. IF AN ITEM IS MARKED "DELIVERED," AND YOU HAVE NOT ACTUALLY RECEIVED IT, THE FIRST STEP IS FOR YOU TO CONSULT YOUR MAIL CARRIER TO GET THE EXACT COORDINATES OF THE DELIVERY AND ARRANGE FOR YOUR ITEM'S RETRIEVAL. IF IT APPEARS