Operational temperature of AV modulator?

Does anybody know how hot the Blonder AV modulators should be when running? I just found one of ours running at about 140-150 degrees (hot enough to burn) while in use... is this within normal range or is it overheating and in need of circulation fans in the satellite cabinet?

As I recall they get pretty warm, but I didn't think that warm. I'll have to check ours.

Where are you measuring the temperature?

This was on the bottom, dead center of the unit towards the rear of the unit.

I checked ours. The hottest reading was 110F. Warm, but not burning. I think something is wrong with your setup. We have 4 in a "stack", so no breathing room above/below. They run 24/7.

What's below yours? Something below heating it up?

aclawson wrote:Does anybody know how hot the Blonder AV modulators should be when running? I just found one of ours running at about 140-150 degrees (hot enough to burn) while in use... is this within normal range or is it overheating and in need of circulation fans in the satellite cabinet?

The Blonder tongue modulators should not exceed 122 degrees Fahrenheit. Even that is at the extreme, anything beyond that indicates a problem.

Thanks. I'll break out the laser next time I'm over there and get an absolute reading before I file a formal ticket.