Up for sale are brand new el panels for optocells T4A(T4, T4B),
that can be found in compressors like UREI LA-2A or LA-3A.
The panels are sized as original ones, so they can be used as drop-in replacement
or you can make your own DIY T4B.
EL panels are the correct color GREEN!
This will have the correct compression curve and they were modeled after an original panel.                                 
Each panel is tested before shipping.
 
Specification:
Panel area : 31.5*19 mm (lighting area), 35*20mm (overall area).
Lighting area: 28.5x15 mm.
Lead spacing: 25mm.

Thanks for looking!