- CRT peel - 1 Update
- Need schematic for Radio Shack Optimus SSM-1750 Mixer - 1 Update
| Michael Terrell <terrell.michael.a@gmail.com>: Jun 21 11:16AM -0700 On Sunday, June 20, 2021 at 9:40:48 AM UTC-4, John Crane wrote: > After the glass breaks, the external atmospheric pressure pushes the > glass pieces into the inner vacuum void. Impressive to watch. > -John That's the case with the implosuion shield in place. I've seen cases where early CRTs without one launced the electron gun across the room. In one case, it was stuck in the wall after going through the drywall. The early, round screen color CRTs were quite dangerous when they imploded, since the bell of the tubee was metal and didn't shatter. |
| Michael Terrell <terrell.michael.a@gmail.com>: Jun 21 11:09AM -0700 > > only put there to sell costly replacement transformers. They may be good > > in a coffee maker or hair dryer, but seem useless on a low current small > > transformer. You've never seen a fire started by a cheap transformer without a fuse. I have. A 'service company' replaced 100 bad transformers in some old Jerrold JSX-3 and JRX-3 cable TV boxes back in the '80s instead of using the proper transformer from Jerrold. They were coming back to our office with belted cases, and in one case, the plastic case had caught fire. Withinn six months, every one of them had failed. The original transformers were both fused and had stell end bells to prevent a fire. |
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