Andre Noble
17-Oct-2011, 07:26
Hello,
Apparently (http://www.largeformatphotography.info/forum/showthread.php?t=81897) there is an electronic incompatibility issue between certain Gralab Timers 545, 645, etc and the Saunders LPL 4500 series enlarger heads - causing the enlarger light to sporadically cut off during exposures - that Gralab recognized years ago and provided a fix. The fix involved instructions to remove a resistor(s) and/or capcitor(s) for said Gralab timers.
Does anyone still have those Gralab instructions to remove the resistors? I have a Gralab 545, but I believe the 645 is almost identical. Thanks.
Apparently (http://www.largeformatphotography.info/forum/showthread.php?t=81897) there is an electronic incompatibility issue between certain Gralab Timers 545, 645, etc and the Saunders LPL 4500 series enlarger heads - causing the enlarger light to sporadically cut off during exposures - that Gralab recognized years ago and provided a fix. The fix involved instructions to remove a resistor(s) and/or capcitor(s) for said Gralab timers.
Does anyone still have those Gralab instructions to remove the resistors? I have a Gralab 545, but I believe the 645 is almost identical. Thanks.