Blue tape retainers

Mark J. Blair nf6x at
Wed Jun 10 01:01:51 CDT 2015

> On Jun 9, 2015, at 22:57 , Chuck Guzis <cclist at> wrote:
> The 3M ones that I've seen are hard white plastic (not PVC or whatever Wright Line used) with a keyhole-sort of affair that allows the circle to expand.

Interesting. I don't think I've encountered that style before, or if I did, that memory has snuck away in the night.

Mark J. Blair, NF6X <nf6x at>

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