Hi Paul, the two different contacts have its reason in the different ability of delivering current between NiCads and batteries. IIRC, there is a low resistance resistor in series at the NiCad contact, preventing the transformer and the switching transistor for overload. I repaired several flashes and there was never a problem with the capacitor, when the charge time was very long or even endless ! Look instead for the rectifier diodes at the high voltage side of the transformer. Normally in Metz flashes there is BA 159 or 1N 4007 used, which seem to get more leakage current over their lifetime. Change them, especially the 1N 4007 ( use instead better BA 159 or equivalent ) and check again. If there's no improvement, mail me private and I will send you a scan of the circuit diagram. But there are different version of the 45 CT 1 ! There are those with a BD xxx transistor in the highvoltage converter, and others ( older ones ) with a AD 136 germanium transistor. I only have a circuit diagram for the first ones. regards Bernd Paul Ewins wrote: > I have bought a couple of old Metz 45 CT-1's to use with > my MXs. As > expected they have a few problems, one of which is the > recycle time between > flashes which is very slow. Does anyone know the cause (and fix)? I'm > assuming it has something to do with ageing capacitors. > > Secondly, they came with ni-cad packs which I have rebuilt with new > batteries, but was wondering whether it is possible to power > them with a > gel-cell or similar sealed cell. It looks like the flash uses > 9v when run on > regular alkaline cells and 7.2v when run on rechargeables as > there are three > contacts in the bottom of the battery compartment, and only > two get used by > the ni-cad pack. I assume that the other contact is used with > the alkaline > battery pack with 6 x 1.5v cells instead of the 6 x 1.2v > ni-cads. Would it > matter which contacts I used so long as I get the voltage right? > > Finally, does anyone have a manual for a 45ct-1 that they > could copy for me? - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
