Teletype model 33 restoration
Posted: March 28th, 2023, 7:34 amHi guys,
Making a thread for my teletype model 33 restoration in order to use it with my Altair Clone.
First, big thanks to jefferjs for the punched tapes he sent to me, that will come in handy.
So I recovered 2 Model 33 Teletypes that were otherwise doomed to be trashed. Both are the same, and both haven't been plugged since 30+ years. The old man who gave them to me got them at his factory when they decommissioned those. His plan was to plug them to each other in 2 different rooms for his kids to play with them. He never did.
So, having both, I started to restore one, keeping the other one for spare parts.
Here is a picture of one before I start cleaning:
They have been modified by a retailer for France use (220V 50Hz).
So I cleaned one, degreased and re-greased most of it, changed a broken ball bearing shaft (taken from the other one), checked the relays were not stuck (with a 12V lab psu) and replaced the rubber hammer on the print head with a rubber tube (the 40yo rubber hammer was turning into some sticky nasty gum).
I'm close to make it work locally. I still have to fine tune some settings and make the Carriage Return work, but the four blocks work.
My intent was to use Mike's "current loop to rs232" adapter, but the P2 connector looks a little bit different. Its pin 3 isn't wired (which is where the adapter gets power from).
So, the UCC neither a UCC-6 or a telex. Has anyone seen that kind of UCC ? Does anyone has some information about it ?
Thank you
Ben
Making a thread for my teletype model 33 restoration in order to use it with my Altair Clone.
First, big thanks to jefferjs for the punched tapes he sent to me, that will come in handy.
So I recovered 2 Model 33 Teletypes that were otherwise doomed to be trashed. Both are the same, and both haven't been plugged since 30+ years. The old man who gave them to me got them at his factory when they decommissioned those. His plan was to plug them to each other in 2 different rooms for his kids to play with them. He never did.
So, having both, I started to restore one, keeping the other one for spare parts.
Here is a picture of one before I start cleaning:
They have been modified by a retailer for France use (220V 50Hz).
So I cleaned one, degreased and re-greased most of it, changed a broken ball bearing shaft (taken from the other one), checked the relays were not stuck (with a 12V lab psu) and replaced the rubber hammer on the print head with a rubber tube (the 40yo rubber hammer was turning into some sticky nasty gum).
I'm close to make it work locally. I still have to fine tune some settings and make the Carriage Return work, but the four blocks work.
My intent was to use Mike's "current loop to rs232" adapter, but the P2 connector looks a little bit different. Its pin 3 isn't wired (which is where the adapter gets power from).
So, the UCC neither a UCC-6 or a telex. Has anyone seen that kind of UCC ? Does anyone has some information about it ?
Thank you
Ben