[Amps] Ameritron Amps

Peter Chadwick g3rzp at g3rzp.wanadoo.co.uk
Sun Jul 30 06:35:24 EDT 2006


Tom said:
>I'm not sure how many of these proceedures are still in 
effect in Starkville<
In factories with very high levels of QA and inspection, things still get changed in production. Sometimes QA know and agree but don't check with engineering. Even if they do, there are times when the original guy isn't there and the people looking at the proposal don't have the history or sometimes the documentation as to why things were done originally. And then the troubles start......Sometimes, changes are well meaning. like in the 500kHz marine Tx where production figured that steel screws around the variometer for PA tuning would be cheaper than the specified brass. Steel screws would be cadmium plate and passivated, so they wouldn't rust, so that would be OK, wouldn't it?
The way the variometer burnt was impressive................fortunately, on test and not in the field.

73
Peter G3RZP


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