Back in 2001, Terry Smythe started a very successful discussion group about roll scanning: https://groups.yahoo.com/neo/groups/Rollscanners/info In 2006, Terry Smythe started another yahoo group about e-valves: https://groups.yahoo.com/neo/groups/e-valves/info The last contributions in 2009 were not quite on topic, but most other discussions including the submitted files are still valid! Walter Tenten
