A brother for David's ESR Meter

[Yorkie]

Polarised red filter plastic used to be widely available, but I've drawn a blank on that

Farnell still sell it, but it's not cheap - 177-147 is £9.74 for a 105 by 35mm sheet.

They also sell bezels, complete with a filter, for around half the price - have a look at 175-705 for example. The sizes available are 20.6 by 34.9mm, 20.6 by 50.8mm and 20.6 by 76.2mm. I've quoted window size there...

I'm sure I have some of this stuff somewhere - probably taken from old kit - so if I ever find it, I'll be in touch.

Mark

Thanks for reading and looking into this Mark, and for your helpful reply.

I think I'll give it a wide berth at that price - it's as much as the kit cost. At least Dick Turpin wore a mask