Am 20.11.19 um 15:21 schrieb John:
The other two were stored without batteries. When I put batteries in them they won't turn on at all. I'm sure I did something wrong with them as well.
No need to do anything wrong there. They can very well take care of killing themselves. Electronic flashes contain electrolytic capacitors - as reservoirs for the flash energy and as parts of the oscillator to generate the high voltage for the flash tube - which lose their capacity if they're left without voltage applied to them for longer periods of time. Some of this loss is reversible by applying voltage to them. Give them fresh batteries, switch them on and wait a few hours. Then switch them off and on again and with a bit of luck the odcillator will start with its usual whining sound. If it doesn't you've probably lost since the repair cost might well be higher than buying a new flash. In an earlier life, I've spent parts of my summer school holidays at the Multiblitz factory, selecting pairs of electrolytic capacitors so that they had the desired capacity. Ralf -- Ralf R. Radermacher - Köln/Cologne, Germany Blog : http://the-real-fotoralf.blogspot.com Audio : http://aporee.org/maps/projects/fotoralf Web : http://www.fotoralf.de -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
