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<div dir="ltr" data-setdir="false">Hi Scott,</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I tried to reply on my cell phone email, but I don't think it made it through.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">1) Check your socket 240 voltage without the amp turned on.</div><div dir="ltr" data-setdir="false">2) Check your voltage at your socket with the amp turned on.</div><div dir="ltr" data-setdir="false">3) Check you voltage at your socket with the amp fully loaded.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I've seen more voltage sag during the peak summer months when everyone on the grid is running their air conditioners. Spring and fall is always better here for stronger primary power.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">If you changed your power to your amp socket with smaller gauge wire, or added something else to the household AC service, you will have more voltage drop.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">That's where I'd start.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Let me know what you find out. If you have no sag, then it can go back to your power supply. A single bleeder resistor that is either shorted or has changed to a lesser value will add additional load to you High voltage DC.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">,...over</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Marcel N5VU</div><div><br></div>
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On Wednesday, August 21, 2019, 12:00:08 PM CDT, <lcc-request@louisianacontestclub.org> wrote:
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<div><div dir="ltr">Send LCC mailing list submissions to<br></div><div dir="ltr"> <a href="mailto:lcc@louisianacontestclub.org" rel="nofollow" target="_blank">lcc@louisianacontestclub.org</a><br></div><div dir="ltr"><br></div><div dir="ltr">To subscribe or unsubscribe via the World Wide Web, visit<br></div><div dir="ltr"> <a href="http://mail.louisianacontestclub.org/mailman/listinfo/lcc_louisianacontestclub.org" rel="nofollow" target="_blank">http://mail.louisianacontestclub.org/mailman/listinfo/lcc_louisianacontestclub.org</a><br></div><div dir="ltr"><br></div><div dir="ltr">or, via email, send a message with subject or body 'help' to<br></div><div dir="ltr"> <a href="mailto:lcc-request@louisianacontestclub.org" rel="nofollow" target="_blank">lcc-request@louisianacontestclub.org</a><br></div><div dir="ltr"><br></div><div dir="ltr">You can reach the person managing the list at<br></div><div dir="ltr"> <a href="mailto:lcc-owner@louisianacontestclub.org" rel="nofollow" target="_blank">lcc-owner@louisianacontestclub.org</a><br></div><div dir="ltr"><br></div><div dir="ltr">When replying, please edit your Subject line so it is more specific<br></div><div dir="ltr">than "Re: Contents of LCC digest..."<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">Today's Topics:<br></div><div dir="ltr"><br></div><div dir="ltr"> 1. Ameritron AL-1200 - power supply repair/upgrade (<a href="mailto:w5wz@w5wz.com" rel="nofollow" target="_blank">w5wz@w5wz.com</a>)<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">----------------------------------------------------------------------<br></div><div dir="ltr"><br></div><div dir="ltr">Message: 1<br></div><div dir="ltr">Date: Wed, 21 Aug 2019 07:09:13 -0500<br></div><div dir="ltr">From: <a href="mailto:w5wz@w5wz.com" rel="nofollow" target="_blank">w5wz@w5wz.com</a><br></div><div dir="ltr">To: LCC <<a href="mailto:lcc@louisianacontestclub.org" rel="nofollow" target="_blank">lcc@louisianacontestclub.org</a>><br></div><div dir="ltr">Subject: [LCC] Ameritron AL-1200 - power supply repair/upgrade<br></div><div dir="ltr">Message-ID: <<a href="mailto:615d9c7db4d544caa716e126875de236@w5wz.com" rel="nofollow" target="_blank">615d9c7db4d544caa716e126875de236@w5wz.com</a>><br></div><div dir="ltr">Content-Type: text/plain; charset=US-ASCII; format=flowed<br></div><div dir="ltr"><br></div><div dir="ltr">My AL-1200 is not putting out the power it used to. I've noticed that <br></div><div dir="ltr">HV at idle has sagged to 3,150-3,200 volts, and at key down drops to <br></div><div dir="ltr">2,850-2,900 volts. About 5 years ago, I replaced the HV filter caps and <br></div><div dir="ltr">bleeder resistors.<br></div><div dir="ltr"><br></div><div dir="ltr">The factory design uses 8 caps, 270mF @ 450v, 85C (8x450=3,600) I've <br></div><div dir="ltr">found an upgrade board that will use 10 caps (10x450=4,500).<br></div><div dir="ltr"><br></div><div dir="ltr"><a href="https://www.ebay.com/itm/W7RY-Ameritron-Amplifier-Replacement-Capacitor-Board-10-Capacitors-4500-Volts/283294210547" rel="nofollow" target="_blank">https://www.ebay.com/itm/W7RY-Ameritron-Amplifier-Replacement-Capacitor-Board-10-Capacitors-4500-Volts/283294210547</a><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">Regarding the 10 cap board:<br></div><div dir="ltr"><br></div><div dir="ltr">1. Do you think that would be a good upgrade?<br></div><div dir="ltr">2. Would this have a detrimental effect on tube life?<br></div><div dir="ltr">3. Or would you recap again with factory components?<br></div><div dir="ltr"><br></div><div dir="ltr">--Scott<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">------------------------------<br></div><div dir="ltr"><br></div><div dir="ltr">Subject: Digest Footer<br></div><div dir="ltr"><br></div><div dir="ltr">_______________________________________________<br></div><div dir="ltr">LCC mailing list<br></div><div dir="ltr"><a href="mailto:LCC@louisianacontestclub.org" rel="nofollow" target="_blank">LCC@louisianacontestclub.org</a><br></div><div dir="ltr"><a href="http://mail.louisianacontestclub.org/mailman/listinfo/lcc_louisianacontestclub.org" rel="nofollow" target="_blank">http://mail.louisianacontestclub.org/mailman/listinfo/lcc_louisianacontestclub.org</a><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">------------------------------<br></div><div dir="ltr"><br></div><div dir="ltr">End of LCC Digest, Vol 129, Issue 3<br></div><div dir="ltr">***********************************<br></div></div>
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