Re: FERMO? - MHugo - Tape Trail

Re: FERMO?

Posted by MHugo (A) on August 9, 2006 at 08:03:49

In Reply to: FERMO? posted by Jon on July 26, 2006 at 07:56:52:

Hi Jon (and our friend in Spain),

The FERMO term I have never understood or worked out. Type III (Ferri/ferrochromes) were a short-lived oddity that tried to combine the low demand for head current of ferrous tapes with the low noise of the new pure CrO2 but were confounded by the problematic high gauss figures regquired for pure chromium dioxides and the consequent need for erase heads to degauss at 15VA or more. It never really came right and manufacturers (and the public) abandoned them. Pure iron particle tapes (the earliest being Sony Metallic, TDK MA and Maxell MX/Hitachi ME)were in any case introduced shortly afterwards: they demanded similar head and rec amp chacteristics but without sharing ferrous oxide in the formula with its ordinarily low 10kHz MOLs to mess things up.

Thus it seems inexplicable that FERMO might refer to either ferrichrome or metal oxide (considering that a baseline type IV is an unoxidised particle (thus not an oxide), particularly one as sophisticated as Finavinx which is highly stabilized and alloy-bound.

However, Jon, I am equally perplexed - it does seem a reasonable fit for the FERMO acronym!!

Cheers all - Marc

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Follow Ups Full Thread

Topic - Looking for Tdk MA-XG and Maxell Vertex tapes - John from spain 08:15:04 07/23/06 (16)

Re: Looking for Tdk MA-XG and Maxell Vertex tapes - prof_tournesol 07:29:10 11/21/06 (0)

Re: Looking for Tdk MA-XG and Maxell Vertex tapes - DEON 23:13:55 07/24/06 (7)

Re: Looking for Tdk MA-XG and Maxell Vertex tapes - John from spain 01:46:47 07/25/06 (6)

Re: Looking for Tdk MA-XG and Maxell Vertex tapes - DEON 03:29:39 07/25/06 (5)

Re: Looking for Tdk MA-XG and Maxell Vertex tapes - John from spain 17:15:03 07/25/06 (4)

Re: Looking for Tdk MA-XG and Maxell Vertex tapes - Manosk56 23:42:39 07/27/06 (3)

Re: Looking for Tdk MA-XG and Maxell Vertex tapes - DEON 09:14:21 07/28/06 (2)

Re: Looking for Tdk MA-XG and Maxell Vertex tapes - Manosk56 05:16:11 07/30/06 (1)

Re: Looking for Tdk MA-XG and Maxell Vertex tapes - DEON 09:58:20 07/30/06 (0)

Re: Looking for Tdk MA-XG and Maxell Vertex tapes - rotovator 15:17:00 07/24/06 (0)

Re: Looking for Tdk MA-XG and Maxell Vertex tapes - kingseiko 20:40:06 07/23/06 (3)

Re: Looking for Tdk MA-XG and Maxell Vertex tapes - John from spain 01:49:16 07/25/06 (2)

FERMO? - Jon 07:56:52 07/26/06 (1)

Re: FERMO? - MHugo 08:03:49 08/09/06 (0)

hehe... "non-expensive & sealed"?! - danny kaey 13:11:14 07/23/06 (1)

Re: hehe... "non-expensive & sealed"?! - MHugo 08:16:50 08/09/06 (0)

Follow Ups

Re: FERMO? - MHugo 08:03:49 08/09/06 (0)

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