On Mon, 22 Aug 2005 18:06:14 -0700, Scott Moore
wrote:
snip
I disagree. A battery backed up electric AI is not cheap, but compared to all of the
components in a full vac system, it is, and its far more reliable. Even HAVING a
current VAC system does not eliminate that cost, since the MTBF for a vac pump is
down below 1000 hours, meaning you are going to have to change it soon in any case.

Mine has a couple thousand on it and is still going strong.

Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com