[urq] Mac 02 repair

[Buchholz, Steven]

... the driver transistor is quite specific ... and I don't have specs for it to try to find a replacement.  I found some listed from vendors who collect old parts and offer them for sale, but never got a response from one of them.  I suspect that it should be possible to analyze the circuit and come up with something more robust than the original design ... the way things seem to go for me I can't imagine being able to undertake a project like that until after I've retired ...

Steve B
San José, CA (USA)
> 
> I have a Mac 02 that I suspect has issues with the frequency valve driver
> circuitry.  I have heard of people repairing these in the past; anybody still
> doing so?