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1. [Amps] Alpha -91b Problem (score: 1): Author: "Brass Pounder" <wf3j@comcast.net>; Date: Sun, 13 Mar 2005 14:47:55 -0500; Hey folks, A friend of mine (W6AAN) reported a problem with his Alpha-91b (2XGU-74B, made in Bulgaria): when attempting to send CW at speed more than 5 WPM at 1500W output, the protection kicks on. N; /archives//html/Amps/2005-03/msg00313.html (6,877 bytes)
2. Re: [Amps] Alpha -91b Problem (score: 1): Author: Vic Rosenthal <vic@rakefet.com>; Date: Sun, 13 Mar 2005 12:24:57 -0800; Put a scope on the input and look for overshoot on the leading edges of the dits. I am not sure if the 870 is one of the bad actors in this respect. If it is like the TS850 with a separate power outp; /archives//html/Amps/2005-03/msg00314.html (7,041 bytes)

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