[TR] TR 3 Voltage Regulator

[Randall]

Joe Mato wrote:
> The conventional wisdom on changing a generator is to also 
> change the VR, Is there a good way to check for proper 
> operation using the old one?

Interestingly enough, I read a note in an old TSOA newsletter to the effect
that the generator model was changed during the TR3A run; and that the
control boxes must match the generator used.  The change was from the
original 19 amp specification to a 23 amp model, and while it makes sense to
me that the later control box shouldn't be used with the earlier generator
(as the 19 amp model will eventually burn up if allowed to produce 23 amps
for long); I was surprised to see that they also said the early box couldn't
be used with the later generator.

Geo Hahn wrote:
> The Lucas Fault manual is what I have always used.  I think Randall
> has a pdf of the thing, possibly on the web.  Hopefully he or someone
> or an archive search will point you to it.

What I have is not the Lucas Electrical Fault manual, but the Lucas
Generator and Control Box Tests manual.  This is a short manual intended for
service stations and such, with simple, straightforward tests and
adjustments only of the DC generator and control box (no alternators or any
other electrical device).  28 pages total, but only 6 apply to the setup on
the TR2-4.

No doubt there are copies on the web, but I've never gotten around to
putting one up myself, so I just pass around PDF files.  Email me if you'd
like a copy.

When I assembled TS13571L for TRfest, I deliberately left the original, 19
amp generator & control box on; just to refresh my memory of what it was
like.  Works just like I remember: slowly discharging with the headlights on
and overcharging with them off.  Car doesn't always want to start after a
long nighttime drive, especially if it's cold and sat for a few days.
Originality be darned, I'm putting an alternator on!

Randall