Obi-Wan transistors
- Thread starter v312
- Start date
So member v312 has passed the torch a little bit, and i’m experimenting the stamping option for any replica transistors. I’m currently trying to find the best method. So when I can get something consistent, i’ll update you all! 
SteuerEule
Member
Any progress on replica transistors? Or any tipps for a similar old or new transistor?
Can someone with a matching transistor provide measurements (height & diameter)?
Can someone with a matching transistor provide measurements (height & diameter)?
Still haven’t gotten a great result stamping to be honest. I’ll be trying again soon though.
Jediseth
Sr Member
The ink is probably baked on. Personally I would have no interest in adding something replicated to an all real parts Obi. Maybe for a Romans being a replica anyway. I just would rather go without or use transistors, that’s just me I guess.
SteuerEule
Member
Thanks for the measurements!
Not everyone is capable of finding real parts (or willing to spend the money). Waiting on my Romans and wanting to add a little „spice“ to it by exchanging parts that are closer to the original ones.
Not everyone is capable of finding real parts (or willing to spend the money). Waiting on my Romans and wanting to add a little „spice“ to it by exchanging parts that are closer to the original ones.
Problem is this package size is not very common. For 2 washer Tunisia/Falcon saber setup is relatively easy to get 2 TO-5 transistors and sand them 1-2mm until they look right. But most people seem to prefer the one washer setup (to my surprise) and there it is more obvious if the transistor is too tall or too short.
Obi1Kenobi
Member
Are these 'standards' originally given in inches or in millimeters? If inches, is it perhaps 0.195" x 0.320"? Someone who is extra anal about these sorts of things might want to know that. Asking for a friend.
I'm not sure if the original specification is in mm or inches. Probably in inches as JEDEC is of US origin and it does not make sense to not round it to the mm if the original spec was metric. But does not matter that much as some dimensions are actually given as an allowed range rather than a fixed value.
Here's a link for reference where the dimensions are given both in mm and inches
Transistor Case Packages, TO-5 Metal Can, 8-Terminals
Dimensions of an 8-Lead TO-5 Transistor Case, TO-5 case package outline and dimensions data for an 8-terminal metal can
www.interfacebus.com
ID10T
Sr Member
I’ve got no horse in this race, but if you need to chamfer the washer ID, this is something I do all the time. If you know the included angle, you could even match that.
Every hole I drill or bore, I always break the edge. All small holes I use the countersink (by hand) to break the burr. (I do other things for larger bores)
You could probably order a box of aluminum washers and then add the countersink.
www.mcmaster.com
Every hole I drill or bore, I always break the edge. All small holes I use the countersink (by hand) to break the burr. (I do other things for larger bores)
You could probably order a box of aluminum washers and then add the countersink.
McMaster-Carr
McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.
Jediseth
Sr Member
Holy moly where did you find those?Check out the two little spiders that crawled out of my mailbox today ! I think must be some seriously rare and endangered species ...
View attachment 1469636
Thank you for making this happen (you know who you are
Jediseth
Sr Member
I have two sets of Dat.11’s but those are better stamped.
Yes, when I found the DAT11s in my initial post I noted that just the logo is a match (and later I could confirm the overall dimensions match very well to the pictures). But I hoped once the brand is known someone will dig up more information and eventually find an old device of some sort that have the correct ones. And pretty much that's what actually happened
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