[78-L] dewarping 78s

[marc van Bemmel]

Hi, 

I am new to this group and have been reading along the messages for some weeks. I am a collector of (classical) 78s from the Netherlands. 

I just saw the message on dewarping CDs. I would like your opinion on a safe method of dewarping 78s. I have a few that are so highly warped that they are unplayable. I was thinking of laying the 78 on a glass plate inside our oven, which can be put at 50 degrees Celsius. Maybe I can install a temperature measurement inside the oven, to check if it doesn't become too hot. What are your experiences ? 

regards, 

Marc van Bemmel