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1. [Amps] SB220 power supply (score: 1): Author: "Steve Flood" <kk7uv@bresnan.net>; Date: Sat, 1 Mar 2008 07:16:19 -0700; To avoid having to build a separate power supply box, I am thinking of using an SB-220 transformer. As I see it, it was meant to run a pair of 3-500's at about 2700volts and 700mA. I am thinking of u; /archives//html/Amps/2008-03/msg00015.html (7,739 bytes)
2. Re: [Amps] SB220 power supply (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Sun, 2 Mar 2008 22:17:05 -0500; Typical HV is 2500 @ 800 ma key down for 1100-1200W out on a stiff 240VAC line. They may not care for 48 hours of CW contesting in the SSB position but they hold up very well otherwise. I see no reas; /archives//html/Amps/2008-03/msg00025.html (9,155 bytes)
3. Re: [Amps] SB220 power supply (score: 1): Author: Pat Barthelow <aa6eg@hotmail.com>; Date: Sun, 2 Mar 2008 19:34:35 -0800; Re the SB 220, If you had a fine carbide drillbit, would it be possible to drill cleanly into the center region of the laminations of the transformer, without doing functional damage to the tranforme; /archives//html/Amps/2008-03/msg00026.html (11,064 bytes)
4. Re: [Amps] SB220 power supply (score: 1): Author: "David Cutter" <d.cutter@ntlworld.com>; Date: Mon, 03 Mar 2008 02:14:36 -0500; Pat There is a recognised way of measuring temperature rise to meet legal requirements, eg UL, CSA, BS etc: the accent is on protection against short from the primary supply to anything else. Leave t; /archives//html/Amps/2008-03/msg00029.html (10,850 bytes)

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