For fixing the film during drying, usually use special clothespins or clips. But if these instruments are at hand does not, they will replace ordinary paper clip.
Recommend to read
THE “CONTROLLER” DC NETWORK
The device is assembled on the proposed scheme allows to control the power consumed from the DC voltage source. Indication power led is a color display and sound. When using in-vehicle...
NOT AFRAID OF SPLINTERS
The burned out bulb is often so "strong liking" in the cartridge that could burst when twisting from the attached effort. However, the fragments do not scatter and don't have to collect,...
