Finds... (mainly Heathkit 3400)

From: Marvin <marvin_at_rain.org>
Date: Wed May 2 16:20:10 2001

Tony Duell wrote:
>

> > ajp166 wrote:
> > >
> > > What about us Techs... VHF and above!
> >
> > UPGRADE!!! With the Morse code requirement having dropped to 5 WPM, the code
> > ceases to be a problem. And the written tests are just not that hard with a
>
> Easy for you to say....

True enough! But you also need to know that in the US, the amateur written
exams are multiple guess with all the questions and answers available in
advance of the test. The written tests themselves should pose no surprises
... assuming some advance study :). And over here, the 13 wpm and 20 wpm
requirements have been removed (arguably for better or worse).

> We all are good at different things. Next time you have a problem with
> some p[iece of classic hardware, I will remind you how easy (it is for
> me...) to glance at the schematic and spot the faulty component, OK :-)

Okay ... got a classic computer also known as Ms. PacMan here. One of these
days I'm going to dig into it again, but the logic is so circular I am
really not sure the bad component(s) can be found without a signature or
logic analyzer. Well, you didn't say it had to be easy :). Seriously though,
I really don't know how to even start troubleshooting that type of circuit.
IIRC, it is similar to some of the microcode circular logic circuits on the
PDP 11-45. Ouch!
Received on Wed May 02 2001 - 16:20:10 BST