[Amps] Ten Tec Titan Power Supply

Mark Robinson markrob at mindspring.com
Mon Mar 30 08:46:07 EDT 2020


Hi Jim,

I had a similar failure on my Golden 425 a few years ago. I sent you 
some pics of my repair.

73 Mark N1UK

On 25-Mar-20 10:58 PM, Jim wrote:
> Ken
>
> Can you send me a wide view picture of the short please and I'll post it.
>
>
> Thanks
> 73
> Jim W7RY
>
> On 3/24/2020 7:11 PM, Ken Claerbout wrote:
>> Thanks to everyone for the assistance! Mark N1UK has one of these and
>> in fact his flashed over at the very same point this one did, where
>> the HV from the transformer feeds the rectifier stack and the ground
>> trace on the rectifier board.
>>
>> I think it would be prudent to replace the caps and some of the other
>> components on the board since it's out on the bench.  But I'll leave
>> that decision to the amp owner.
>>
>> 73
>> Ken K4ZW
>>
>>
>> On Tue, Mar 24, 2020 at 5:33 PM Ken Claerbout <kenk4zw at gmail.com> wrote:
>>> I have a Titan "Golden Series" amp and power supply here that I was
>>> asked to test.  It fired up fine the first time.  Later I turned it
>>> on, and a bang came from the power supply.  The RF deck is fine.  It
>>> works with other supplies.  The transformer appears to be OK too, at
>>> least there is no DC short and none of the fuses blew.
>>>
>>> This power supply is different from all the others I have worked on in
>>> that it has the rectifier and filter caps on one board.  Along with
>>> 20A line fuses on the chassis, there is a fuse on the 28 volt supply
>>> as well as the soft start.
>>>
>>> Does anyone have a schematic for this style power supply?  I'm sure I
>>> can figure it out eventually, just hoping I might save some time if
>>> the schematic is available.
>>>
>>> 73
>>> Ken K4ZW
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