[sdiy] vactrol question

[Peter Grenader]

Kevin Lightner wrote:

> Does anyone have formulas or tables for various vactrol's resistance
> vs led current responses?
> Thanks.

Depends on the manufacturer, but if it's straight 'vactrol' brand (i.e.,
Perkin-Elmer) There are two documents in the Octo devices tab of that site
which will help - the specific VTL data sheet for the device you're
considering, and the Opto Device application docs.  Both have resistance
curve graphs against drive current.

hope thi shelps.

- Peter