We have a VHF/UHF amplifier (quite an expensive one) that the builders covered with glass fibre in a loft. The air temp in the loft was 48C so God knows what it was inside the amp, but it was dead and it burnt the fingers of the person who discovered it. Thing is, it has now been on soak test in a 30C environment and it is working fine. Can we now trust this amp, or do we scrap it?
Bill