Re: [NSW] SPIs

[matthew@mail.usyd.edu.au (Matthew Geier)]

In article <93j3s1$7s$1@nnrp1.deja.com>,  <petercook2705@my-deja.com> wrote:
>You're right, however those light globes did need replacing when they
>blew.
>
>SPIs are no different.  In this case, you will just have to replace the
>screens every few years.  The question is will it happen?
>

 And what would an entire board of 24v lamps cost... :-). Should have
replaced the relay logic with solid state (a tech student level project in
logic design) and used LED lamps. Would have ran for years, and any hobby
electronics store would have parts... :-)

 Those Plasmasync screens are probably $2k each. How many relays and lamps
(and technican time) would that buy ?