From: Association for Recorded Sound Discussion List
[mailto:ARSCLIST@xxxxxxx]On Behalf Of Goran Finnberg
Sent: Saturday, June 17, 2006 11:53 AM
Subject: Re: [ARSCLIST] Ampex 456 - tip of the iceberg...chemistry
Steven C. Barr:
> One wonders...if there is moisture involved, and thus present in the
> "defective" tapes...would it be possible to use a microwave oven
> (which requires water molecules to create heat) to "bake" the tapes?
It is a fact that the recommended way to treat AGFA 468/469, from those
batches during a year around 1990, that were found to go sticky, and in
fact the only AGFA tape to go sticky and only from production during a
year as far as I know the story...
IS to bake it in a microwave oven according to the AGFA memo issued at
This was reported by Dave Collins Chief Mastering Engineer at A&M
records who reported that he was visited at A&M by a technical
representative of AGFA GEAVERT GmbH who set it all up and guided David
Collins through the procedure and left the Technical memo.
I would love to get my hand on a copy of that memo for sure.
The Mastering Room AB
Learn from the mistakes of others, you can never live long enough to
make them all yourself. - John Luther