B-models where introduced in the mid 1930's.
All pre-war models have
all of the following characteristics:
<ul>[*]1-1/2" wide pick-up plates/No frame around the pick-up.
[*]Bridge integrated in the body molding.
[*]Five cover plates are chrome plated, not white nor celluloid.
[*]No cover over key head.
[*]Frets are not out lined by recessed white lines.
[*]1 or 2 controls: If two, they're located on opposite plates, not both on the treble side plate.
[*]String through the body.
[*]Small "Rickenbacher Electro (RF) Los Angeles" logo on key head (Notice the spelling: it's Rickenbac
her).[/list]
7 string models are rarer than 6 string. 7 string models are built out of a 6 string body and neck, Thus the string spacing on 7 string models is narrower, which makes slants more difficult. Rickenbacker has even used 6 string necks for some of their 8 string model, which are really "no-slanters" (IMNSHO).
In later years (from 1940 up), war time material shortages as well as economical considerations may have forced Rickenbacher to painting the 5 cover plates.
Also the formula of the bakelite was changed as the early one was so brittle that bodies would pop, chip and/or break during the manufacturing process.
Recessed white fret outlines where added to these "new generation" necks.
Later again a smaller pick-up was introduced (1-1/4" wide) mounted with a surrounding metal frame. This frame came into the way or the originally integrated bridge, so bridges where now a separate "screw-on" part.
Probably in order to reduce the risk of body breakage, Rickenbacker also quit the string-thru attach design and introduced a plated metal tail piece (much like on semi-acoustic guitars or Dobro's). You also have to understand that bakelite is a very hard and abrasive to machine material, requiring tool to be re-sharpened very, very often.
I am in the process of collecting digital photos of B and A series Rickenbacher lap steels and all information (catalog copies) possible. All this to eventually be published on a web site. If you or anybody have such information, I would welcome you to e-mail it to me. Thanks! [email]
jaydee@bellsouth.net?subject=SG-Forum/Non Pedal/Rickenbacher Timeline[/email]
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The future belongs to culture. <small> Ricks
are culture! But are they the future???</small>
jaydee@bellsouth.net
><FONT SIZE=1 COLOR="#8e236b"><p align=CENTER>[This message was edited by J D Sauser on 17 November 2000 at 07:49 AM.]</p></FONT>