Yamaha A-1 Transistor ID

[Nashou66]

Wasn't it you who wanted to reproduce the plastic hinges ?

Yes, have gotten sidetracked . Riding my 2014 Moto Guzzi V7 Racer a lot!!!!
Plus just life in general. I still hope to try some day .

nashou

 

[OMGCat!]

I was just thinking about your hinge thread. There is a pretty nice looking A-1 on the bay with a door but also with a broken hinge. Seems that's about the best you can hope for these days with nearly all of them just missing the door outright.

 

[mbz]

old thread, maybe some useful info, maybe not...
Tinkering with an early A-1 SN47xx from Japanese domestic market.
Unit only has TR137,8. No TR139, 140. Probably explains why missing from parts lists in early manuals etc...
Will sort out bias issues then probably include TR139,140