First of all, thank you Darrell Clarke for bringing this topic back in
front of everyone.  I'm a crusader for using this tape to repair all
paper rolls, old and new!

I wrote to about 5 companies to buy this tape back in 1996, and the one
company that sends me catalogs regularly and seems most to want my
business is:

   Light Impressions
   439 Monroe Avenue
   PO Box 940
   Rochester, NY  14603 - 0940

   1-800-828-6216

They carry all types of archival material, photo mounting hardware, etc.
and they regularly offer 15% off anything in their catalog, plus free
shipping if you order $100 or more.  The last catalog I got lists this
tape as item # 2830 (3/4" x 164 ft. roll) at a price of $19.95.  Go on,
pick up the phone NOW and order a roll!  Order 2 or 3 rolls and give
them to your friends as Christmas presents!  They'll hold you in even
higher regard than they do already!  You'll be the pride of your AMICA
chapter!

Folks, don't let the cost deter you.  I make minor repairs to rolls
about once a month, and I'm still on my first roll after 2+ years.  I
bet I haven't even used 1/3 of the roll yet.  Trust me, you can afford
it and it's worth it.  Think of it as doing your part for posterity.
Remember, the other tapes warp the paper, discolor the paper, and ooze
gooey stuff over time.  This is the only way to go!  Now if I can just
figure out how to get a kickback from Light Impressions (just kidding).

When I use this stuff, I typically pull off an inch-long strip and cut
it in 1/2 vertically (hand-held, with a pair of scissors; this isn't
rocket science).  Then lay the pieces down accordingly.  Naturally I
vary the length depending on the size of the damaged section, but I
discourage using any tape longer than an inch.  A longer piece may not
warp the roll paper, but why risk it?  It's also easier to correct poor
repairs in the future if you use smaller pieces with discrimination.

This way I keep the tape handy by my piano, and I can make minor
repairs on the spot (no pun intended) as I play rolls rather than later,
when I'll probably just forget and not get it done anyway!

I agree with everything else Darrell Clarke said.  Heed his advice!
He knows what he's talking about.  Are we a great bunch of folks, or
what?   ;-)

Cheers,
Rob