For replacement 33 parts, join the greenkeys list. Greenkeys is a slang name for Teletypes, When the went to the newer style keycaps in the 40's or maybe the 50's the color was green. A member had a injection mold made and a run of the hammer buttons made. He has also made or is making other 33 parts.
A quick solution is to use a piece of PVC tubing. Works pretty well. On Tue, Apr 12, 2016 at 12:55 PM, E. Groenenberg <e...@groenenberg.net> wrote: > > So after cleaning up and reorganizing my computer/hobby room I thought it > was time to get the asr33 working again. It has a stuck carriage (at the > right end), and it would only go back after repeated CR's. > > First thing I did was to replace the gooed up rubber hammer, only to > find out that my replacements were also starting to deteriorate :( > (but still stiff enough to be usable for some print test). > I can either use a piece of hose or one of those little self adhesive > rubber feet. > > Closer inspection showed that the pawl of the advancing/return section > was barely moving. With the application of WD40 using a small brush > loosened the gummed up oil/grease and with some more cleaning and light > machine oil it was behaving as it should. > > Next was to get it working as a console (it works fine in local mode, > puncher and reader do what they need to do). > I have one of these DLV11-KB's (EIA/20mA converters), and one of them > was already configured for teletype use. The schematic also notes that > these can be used for ASR-33 use. > > A flat mate-n-lok plug was made for the 20mA side, as well as a rs232 cable > for the EIA side. Little note here is that the DLV11-KB uses 12V as power, > so 2 wires were used to go to a wall wart adapter counter plug. > > Check power -> ok > Check cables -> ok. > Set VT220 to 7E2, 110 baud -> ok > power on ASR -> ok > > Hmm, the print-head is constantly hopping and typed chars on the VT > do not appear. Then again typed chars on the ASR do show on the VT screen. > > Ok, power off the ASR, and look at the back of the ASR terminal strip. > Ahh, wire 6 & 7 are used other way around, so swapping 2 pins on the > mate-n-lok is all what is needed. > > Power on ASR -> ok, no hopping print-head this time, and chars type on > the VT do print on the ASR. Jippy! > > Only thing what does not work yet is that the paper reader does not start > when I flip the switch to the 'start' position (it is a 3 position switch). > Any ideas how to make this work? > > All in all a few hours well spend. > > Ed > -- > Ik email, dus ik besta. > BTC : 1J5fajt8ptyZ2V1YURj3YJZhe5j3fJVSHN > LTC : LP2WuEmYPbpWUBqMFGJfdm7pdHEW7fKvDz > > > >