I am currently taking a photo lighting class and mid semester we were required to start doing projects involving using multiple (at least 2) off camera lighting strobes. All in manual mode no TTL or auto mode. Before this class I used only manual film cameras (Minolta x series) and after a few weeks into it purchased a Panasonic G1 Digital body with adapter to use all my lenses on. All my old dedicated strobes for my Minolta were low enough voltage and safe to use on the digital body. I also had one old SUNPAK Thyristor Auto 322 non dedicated strobe that had too high a trigger voltage so i did not try it, but i love that flash since it is a bounce swivel head and power control. Since i already had several strobes for my old manual film cameras i thought it would be better to buy an inexpensive radio trigger set instead of an of camera cable and hot shoe slaves. Because a ttl cable and a slave trigger shoe would end up costing the same and since they were all going to be used in manual mode anyway the radio trigger method seemed the way to go , since it also could be used as a camera remote. This is what I got. The Aputure Trigmaster set with 2 receivers and remote chord for the G1. I got the remotes and discovered a problem. SO let me list the flashes and that i have 1st to help with the following problem i will mention. (1) SUNPAK Thyristor Auto 444D for Minolta (TTL) (1) SUNPAK Thyristor Auto 322 (2) Minolta auto 132x (1) Minolta 280px (TTL) SO my problem is that now that i have the Trigger set the only flash that works on the receiver shoes is the SUNPAK Thyristor Auto 322. All the other flashes work on the camera hot shoe in manual mode but not the wireless receiver shoes. I called the place i purchased them and it was suggested that maybe the trigger voltage on the flashes are too low . Is this possible and do i need to buy new flashes?