Sorry, this page is not translated yet. Automatic translation used.
Time relay "Don-103" was supposedly produced since 1983 by one of the Rostov factories (P / Y).
The Don-103 time relay is designed to turn on the Don-103 photo enlarger lamp or any other lamp for a pre-set exposure time of photo paper, from 0.1 to 99.9 seconds.
,null,ru,null,null,null,null