[GreenKeys] Looking to identify an equivalent transistor for Q1 on a Mod 33 SMD Board

[john at toebes.com]

I'm trying to do an emergency repair on the Teletype Mod 33 that we are
using as part of an outreach at the Astronomy Days at the North Carolina
Museum of Natural Sciences here in Raleigh.
https://photos.app.goo.gl/u9zMeUrMhAPUWME89 

 

We aren't sure what is broken, but Wayne has helped narrow it down to
definitely being electronic which means it is either the Q1, Q2, or 4.7v
Zener on the SMD board or the transformer (hopefully not since I can't do
anything about that in the next 12 hours).  

 

The schematics identify the part as a Motorola 181671 High Gain Transistor,
but my Google searching isn't turning up enough specs to identify an 2N
equivalent.  Does anyone know what the specs of the transistor is so that I
might see if I have an equivalent in my bin of parts?

 

Thanks!

*	John Toebes
*	919-622-2041

 

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