<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">20 A at 50% duty cycle (10 min on, 10 min off), fan cooled, 80°C on, 70°C off,<div>…developed specifically for the IC-735”</div><div><br></div><div><a href="http://www.radiomanual.info/schemi/ICOM_ACC/Icom_IC-PS-55_user.pdf">http://www.radiomanual.info/schemi/ICOM_ACC/Icom_IC-PS-55_user.pdf</a><br><br><div dir="ltr"><div> = Steve — KB1LKR =</div>Sent from my iPhone</div><div dir="ltr"><br><blockquote type="cite">On Jul 5, 2022, at 11:15 PM, Jason Sanroma <jason@sanroma.net> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><meta http-equiv="Content-Type" content="text/html; charset=utf-8">I have the Icom PS-55. It is 20A linear power supply. It came with the radio I belive.<div class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Jul 4, 2022, at 8:29 AM, Bruce Anderson <<a href="mailto:w1lus@hotmail.com" class="">w1lus@hotmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
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Hello Jason
<div class="">I agree with Eric. 40 and 20 minute times indicated a large thermal time constant. Nothing in the 735 has that mass. Power supply’s do (sometimes ) have thar mass.</div>
<div class="">A735 needs about 17 amps at full power. What is your power supply rated for ?</div>
<div class="">Bruce </div>
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<div dir="ltr" class="">Sent from my iPhone</div>
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<blockquote type="cite" class="">On Jul 3, 2022, at 8:22 PM, Jim Idelson <<a href="mailto:jim@k1ir.com" class="">jim@k1ir.com</a>> wrote:<br class="">
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<div dir="auto" class="">This is typical of phase locked loop (PLL) not locking properly. I bet a Google search will turn up some articles and videos on the topic.<br class="">
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<div data-smartmail="gmail_signature" class="">73 Jim K1IR</div>
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<div dir="ltr" class="gmail_attr">On Sun, Jul 3, 2022, 9:02 AM Jason M. Sanroma - K1NAD <<a href="mailto:K1NAD@sanroma.net" class="">K1NAD@sanroma.net</a>> wrote:<br class="">
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Hello,
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<div dir="auto" class="">I have an Icom IC-735. It was given to me by my grandfathers friend who happened to be the original owner of the radio. I noticed that after about 40 minutes of TX/RX 20m goes “dead”. The meter is 0 and does not move when I TX or just RX. It
turns back on after about 20-40 minutes. There is also no background static while on RX.</div>
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<div dir="auto" class="">It is obviously heat sensitive but I am not sure why and what is causing it. Does anyone have the same issue? Can anyone help me with an explanation of what it could possibly be?</div>
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<div dir="auto" class="">Thanks for your help.</div>
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<div dir="auto" class="">73,</div>
<div dir="auto" class="">Jason</div>
<div dir="auto" class="">K1NAD</div>
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