Hi Gregorio
I used the Arnold unit for years. If you keep the sponge wet it works
fine. It will have a hard time finding the tracks on 4 track 1 7/8IPS
tapes but it works well on other speeds. Just remember to keep the
sponge wet. I forgot and mine went dud.
Shai
On 31/01/12 21:39, Gregorio Garcia Karman wrote:
>> He reviews the Arnold viewer and the Kyread spray. Somewhere else, he talks about a credit card size brand that he likes alot. Perhaps Richard can elaborate on this post.
>>
> Perhaps something like this?
>
> http://www.arborsci.com/magnetic-field-viewer
>
> G
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