@@ -31,29 +31,28 @@
I am editing this post to reflect my latest discoveries regarding L & M100 manual chassis that will accomodate 10 busbars.
The L133 manual chassis I originally spoke of is of different design than any other Hammond chassis I have seen.
-The actuators, contact boards and terminal strip are ALL made of plastic -
Hammond chassis usually have bakelite boards, etc., - interesting....
+The actuators, contact boards and terminal strip are ALL made of plastic.
Hammond chassis usually have bakelite boards, etc., - interesting....
-NONE of the *
M100*
chassis I have worked with will accomodate 10 busbar contacts.
+NONE of the M100 chassis I have worked with will accomodate 10 busbar contacts.
That is, _until recently!_
I opened both an M103 and an L111 recently and they _both_ have room for a tenth busbar _and_ room for contacts for the tenth busbar, if installed. These chassis are the same as the L133 I described above. All plastic guts.
-I checked my history working with these spinets and found that 1964 and earlier used the bakelite boards and would not accomodate 10 busbars. I have _not_ been into a 1965 vintage spinet. The
last two models I opened up are 1966 vintage.
+I checked my history working with these spinets and found that 1964 and earlier L & M100s
used the bakelite boards and would not accomodate 10 busbars. I have _not_ been into a 1965 vintage spinet. And, the
last two models I opened up are 1966 vintage.
So, it was obviously a production change in 1966 (for sure) and possibly 1965, where Hammond added this "feature."
-To find out if your L or M100 has such a chassis, from frontside, remove the metal L-shaped cover from the lower manual chassis assembly (two screws at each end).
-
-
+To find out if your L or M100 has such a chassis, from frontside, remove the metal L-shaped cover from the lower manual chassis assembly (two screws at each end).
If the terminal contacts are mounted to a black, plastic board (as shown below), chances are you have one of these 10-busbar chassis.
[http://comics.limo.net/L111CHASSIS/BOTTOM.JPG]
-Note the "square" busbars used on
this chassis
+Note the "square" busbars used in
this chassis
[http://comics.limo.net/L111CHASSIS/END1.JPG]
-I added a tenth busbar in this photo.
+I added a tenth busbar as shown
in this photo.
[http://comics.limo.net/L111CHASSIS/10_BARS.JPG]
