I just found out the the L-4B has the Harbach mod and the bleeder resistors were removed to eliminate excessive heat. Is there anything else I need to do to the power supply? Thanks! 73 de Bill K9BUB
--- On Mon, 7/28/08, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: From: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Subject: Re: [drakelist] Drake L-4B To: [email protected] Date: Monday, July 28, 2008, 2:41 PM I would think 20A would be fine unless the run is long, then I'd opt for 30A. Be aware that pin arrangements for the plug and socket change for the various ratings. Even if the PS is working ok with the amp, I always replace the 5K 7wt resistor on the underside of the supply with a 5K equivalent, 20 watt rating. When the original resistor fails, it takes out the ALC pot that also contains the standby switch; these haven't been available for decades. -----Original Message----- From: Duane Calvin <[EMAIL PROTECTED]> To: [email protected] Sent: Mon, 28 Jul 2008 2:34 pm Subject: Re: [drakelist] Drake L-4B I ran a 20A line for my Alpha 99. Works great. 73, Duane AC5AA At 01:23 PM 7/28/2008, you wrote: Just bought a Drake L-4B amp and while I am waiting for the amp to arrive I had the electrician over. He wants to know what everyone is running for their 240V line. 15, 20 or 30 amp service. Thanks! 73 de Bill K9BUB Duane Calvin, AC5AA Austin, Texas www.ac5aa.com The Famous, the Infamous, the Lame - in your browser. Get the TMZ Toolbar Now!
