5 Jun
2019
5 Jun
'19
7:05 p.m.
Hi,
I think someone was looking for tape seals for 9 track tapes, a few weeks
ago.
If they can contact me offline, I have about 20 of varying sizes for
shipping cost or local pickup.
Stan
sieler at allegro.com
7 Jun
7 Jun
11:25 a.m.
On 06/05/2019 06:05 PM, Stan Sieler via cctalk wrote:
Hi,
I think someone was looking for tape seals for 9 track tapes, a few weeks
ago.
If they can contact me offline, I have about 20 of varying sizes for
shipping cost or local pickup.
My experience with them is that the seal bands are
quite
long-lasting, but the black ends that snap in tend to crack
after a while. These small parts could likely be reverse
engineered and made on a 3D printer.
Jon
2:06 p.m.
On 6/7/19 8:25 AM, Jon Elson via cctalk wrote:
On 06/05/2019 06:05 PM, Stan Sieler via cctalk wrote:
That's
*definitely* not my experience. I don't think I've ever had a
"hook" failure.
I process tapes in batches of five--five in the oven, five in the
cleaner, five to be photographed and five to be read. They're returned
to the customer in 12x12x12 boxes in batches of 10.
Out of the new batch of five out of the oven this morning, here are two
samples of what I see:
https://i.imgur.com/HRYYs8Z.jpg
https://i.imgur.com/zMQ8Jmw.jpg
Notice that these are official "TapeSeal" bands, not some knockoff.
Granted, most of the stuff I get is from the 1960s and 70s; the two
reels shown above were probably new sometime around 1968-71.
--Chuck
Hi,
I think someone was looking for tape seals for 9 track tapes, a few weeks
ago.
If they can contact me offline, I have about 20 of varying sizes for
shipping cost or local pickup.
My experience with them is that the seal bands are
quite long-lasting,
but the black ends that snap in tend to crack after a while.? These
small parts could likely be reverse engineered and made on a 3D printer. 
4:26 p.m.
Another failure category that I've experienced with very old IBM reels
is that the "blue back" ones can have a tendency to come apart; that is,
the rear flange separates from the front.
The "blue" ones are a bit different in attachment from the "brown"
ones
in that the two halves are held together by a number (perhaps 30, I
didnt't cound) of slender plastic "fingers" that are molded into the
rear flange and engage with a number of metal clips on the front flange.
With time, these "fingers" can become brittle and break with the result
being a lot of tape on the floor.
I put a small bead of polyurethane glue (e.g. "Gorilla") on the outer
radius of the "finger" attachments and clamp the whole assembly together
until the glue cures. No glue gets into the tape areas and the result
seems to be permanent.
I also get the occasional broken or cracked flange, but those are simple
to repair using a good acrylic solvent cement.
--Chuck
10:06 p.m.
On 06/07/2019 01:06 PM, Chuck Guzis via cctalk wrote:
On 6/7/19 8:25 AM, Jon Elson via cctalk wrote:
OK, my experience with 1/2" tape mostly ended about 20 years
ago, but I STILL have one shelf of tapes in my shop, and ALL
the seals are in excellent condition. I have no idea why!
(But, mine are in a metal rack, not hanging.)
But, we did have some where the separate black ends that
formed the hanging hook and clamp broke.
Jon
My experience with them is that the seal bands are quite long-lasting,
but the black ends that snap in tend to crack after a while. These
small parts could likely be reverse engineered and made on a 3D printer.
That's *definitely* not my experience. I don't think I've ever had a
"hook" failure.
1871
days inactive
1874
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4 comments
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participants (3)
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cclist＠sydex.com -
elson＠pico-systems.com -
sieler＠allegro.com