Because they have a built in current limiting circuit that will limit the
PA's collector current to a pre-set (which is field adjustable) limit.
Donnie / WA9TGT
On Sep 4, 2012 5:45 PM, "Ralph" <w8bvh@sbcglobal.net> wrote:
> Why??
> Ralph Howes
> w8bvh
>
>
> ----- Original Message ----- From: "Donnie" <cfzepp@gmail.com>
> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
> Sent: Tuesday, September 04, 2012 4:14 PM
> Subject: Re: [TenTec] Station power supply??
>
>
> Mike:
>> I do believe that from the original Paragon and newer models such as the
>> Omni V, Paragon II, Omni 6 the use of the Airpax breaker is no longer
>> needed.
>>
>> Donnie / WA9TGT
>> On Sep 4, 2012 4:04 PM, "Mike Bryce" <prosolar@sssnet.com> wrote:
>>
>> Of course, when running ten tec transceivers, the use of a non factory
>>> supply increases the need for an air pax fast acting circuit breaker to
>>> protect the rig's final transistors.
>>>
>>> Mike wb8vge
>>>
>>> Sent from my iPhone
>>>
>>> On Sep 4, 2012, at 2:36 PM, Kimberly Elmore <cw_de_n5op@sbcglobal.net>
>>> wrote:
>>>
>>> > FAR Circuits still offers their "RF Proof 30 A Power Supply" regulator
>>> board.
>>> > It's only the PCB -- you need to find the parts and stuff the board.
>>> It's based
>>> > on an article in the 1988 ARRL Handbook. I built one for my 30 A Astron
>>> PS when
>>> > I learned that it was extremely susceptible to RFI. I could never get
>>> this
>>> > regulator to act up. I made mine over 20 y ago and it still works just
>>> fine.
>>> > However, it (obviously) applies only to linear supplies.
>>> >
>>> >
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>>
>
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