Re: Magic eye valve types
There is a UM84 and possibly UM87, also EMM80 as found in Revox F36 tape recorders. and EAM85 found in early Tandbergs and Kortings.
I've not heard of EM85 but there was EM87
Last edited by Michael Maurice; 29th Jan 2010 at 12:44 am.
Reason: addition of words
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