As Dennis Rooney pointed out: "3M 176 and 177 both can squeal."
Shai's post points out the need for a centralized database because this
list is sprinkled with a wealth of valuable information on many subjects.
Richard Hess maintains a page on audio tape known to have problems but
he should not have to keep up a centralized database (He has other
things to do, I'm sure).
Anyone know of some good email mining software?
Corey Bailey Audio Engineering
On 11/23/2020 5:59 AM, Dennis Rooney wrote:
> Dear Shai,
> 3M 176 and 177 both can squeal, although your feline comparison is more
> severe than what I ever experienced. When they were introduced in the 70s,
> we put them into service in the news operations of the broadcaster I worked
> for at the time and we noticed the squealing tendency then, so it is not a
> consequence of age. Also *ab initio*, both tape types noticeably shed oxide
> in use. However, those issues were not judged to cause any malfunction in
> use and were in effect ignored. The formulation seems to have been one of
> 3M's most stable but it is years since I have handled any.
> On Mon, Nov 23, 2020 at 6:03 AM Shai Drori <[log in to unmask]> wrote:
>> Hi Tim
>> They definitely do not need baking, they are dry and thus squealing. I was
>> under the impression that they were just a thinner 176. The 176 is a great
>> tape in my experience.
>> On Mon, 23 Nov 2020 at 11:33 Tim Gillett <[log in to unmask]>
>>> Hi Shai,
>>> I have a stack of 3M Pro Pack 177 (1 mil) n 10.5" reels. Not back
>>> coated. Had them for about 40 years. All ex radio station log tapes.
>>> Mostly they are OK but a little shedding so sometimes need more
>>> cleaning of tape path than usual. Definitely nothing as bad as the
>>> main SSS type tapes. I dont think I've ever baked any but have
>>> thought they might need it if they ever got any worse.
>>> Cheers Tim
>>> ----- Original Message -----
>>> From: "Association for Recorded Sound Discussion List"
>>> <[log in to unmask]>
>>> To:<[log in to unmask]>
>>> Sent:Mon, 23 Nov 2020 11:03:02 +0200
>>> Subject:[ARSCLIST] Scotch AV177 sqealing
>>> Does anyone have experience with this formulation? I always thought
>>> it was
>>> the 1 mil version of the 176, but I have 3 tapes now that are
>>> squealing worse than cats in heat.
>>> Shai Drori
>>> Expert digitization services for Audio Video
>>> 3K scanning for film 8mm-35mm
>>> Timeless Recordings Music Label
>>> [log in to unmask]
>>> Email sent using Optus Webmail
>> Shai Drori
>> Expert digitization services for Audio Video
>> 3K scanning for film 8mm-35mm
>> Timeless Recordings Music Label
>> [log in to unmask]