New here, so if I'm doing this wrong please point me in the proper direction. With a major tip of the Fedora to all the writers who started the Spade/Continental Op etc, I'm doing a full length novel in that genre. Amazon wants to publish it in "Episode" form, much like was done in Black Mask magazine back in the day. Reading Hammett for soaking up the feeling of the time. First quesion...What kind of table/desk top radio was available in 1930? Were there any electric ones or were they all the D battery kind? Thanks in advance.