Glass-to-metal seal little lower than that of the soda-lime glass. Classically high lead containing glasses are used, but it is also possible to substitute these by multi-component glasses e.g. based on the system ---------. Glass-to-metal seal Glass-to-metal seals are a very important element of the construction of vacuum tubes, electric discharge tubes, incandescent light bulbs, glass encapsulated semiconductor diodes, reed switches, pressure tight glass windows in metal cases, and metal or ceramic packages of electronic components. Properly done, such a seal is hermetic (vacuum tight, good electrical insulation, special optical properties e.g. UV lamps). To achieve such a seal, two properties must
Murder Ain't What it Used to Be Murder Ain't What it Used to Be Murder Ain't What it Used to Be is the seventh episode of the popular 1969 ITC British television series "Randall and Hopkirk (Deceased)" starring Mike Pratt, Kenneth Cope and Annette Andre. Directed by Jeremy Summers, the episode was first broadcast on 2 November 1969 on ITV. Crime boss Paul Kirstner flies over to Great Britain from New York City to attend to "business" in London. Behind most of the rackets in Chicago, he hires Jeff to protect his daughter from any of his enemies whilst in London. However, Kirstner is being haunted by