[bars] Icom IC-735

[Stephen Crook]

20 A at 50% duty cycle (10 min on, 10 min off), fan cooled, 80°C on, 70°C off,
…developed specifically for the IC-735”

http://www.radiomanual.info/schemi/ICOM_ACC/Icom_IC-PS-55_user.pdf

        = Steve — KB1LKR  =
Sent from my iPhone

> On Jul 5, 2022, at 11:15 PM, Jason Sanroma <jason at sanroma.net> wrote:
> 
> I have the Icom PS-55. It is 20A linear power supply. It came with the radio I belive.
> 
>>> On Jul 4, 2022, at 8:29 AM, Bruce Anderson <w1lus at hotmail.com> wrote:
>>> 
>>> Hello Jason 
>>> 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.
>>> A735 needs about 17 amps at full power. What is your power supply rated for ?
>>> Bruce 
>>> 
>>> Sent from my iPhone
>>> 
>>> On Jul 3, 2022, at 8:22 PM, Jim Idelson <jim at k1ir.com> wrote:
>>> 
>>> 
>>> 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.
>>> 
>>> 73 Jim K1IR
>>> 
>>>> On Sun, Jul 3, 2022, 9:02 AM Jason M. Sanroma - K1NAD <K1NAD at sanroma.net> wrote:
>>>> Hello,
>>>> 
>>>> 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.
>>>> 
>>>> 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?
>>>> 
>>>> Thanks for your help.
>>>> 
>>>> 73,
>>>> Jason
>>>> K1NAD
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> 
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