Just remember Scotty's wise words ...
..."the more you complicate the plumbing,
the easier to clog up the toilet"... .
73 es HNY, Dick, W1KSZ
On Thu, Dec 29, 2016 at 4:37 PM, Alek Petkovic <vk6apk@bigpond.com> wrote:
> So, what's the deal here?
>
> We have heard from several owners now and from the people who make the
> amps and all the idling currents are wildly different.
>
> Are they coming out of the factory like this or do things change with use?
>
> Whatever the case, it seems to be a pretty silly design error, not to have
> it easily adjustable by the user.
>
> FAIL Alpha. :-)
>
> 73, Alek.
> VK6APK
>
> On 30/12/2016 6:32 AM, Fern Rivard wrote:
>
>> Well that’s strange Brad as Glenn AE0Q at Alpha RF Systems told me that
>> it should be 130 ma but I suppose that 10 or 20 ma won’t make that much
>> difference?
>> Is it possible for you to guide us to set the bias using the software?
>> 73 from Fern VE7GZ
>>
>>
>> -----Original Message-----
>> From: BRADLEY FOCKEN
>> Sent: Thursday, December 29, 2016 2:28 PM
>> To: Bill Turner ; Amps group
>> Subject: Re: [Amps] Alpha 9500 Idling Current
>>
>> Hello all.
>> The plate current should be set to 150ma with no rf plus or minus 10ma.
>> 150 is your target bias.
>> 83 Brad K0HM
>>
>>
>>
>> Sent from my Verizon 4G LTE smartphone
>>
>>
>> -------- Original message --------
>> From: Bill Turner<dezrat@outlook.com>
>> Date: 12/29/16 2:23 PM (GMT-07:00)
>> To: Amps group<amps@contesting.com>
>> Subject: Re: [Amps] Alpha 9500 Idling Current
>>
>> ------------ ORIGINAL MESSAGE ------------(may be snipped)
>>
>> On Thu, 29 Dec 2016 13:35:12 -0500, Paul wrote:
>>
>>
>>
>>> That amount of Ip idle current seems high to me for the 9500. Possibly
>>> W6WRT and W8ZR can weigh-in with their findings. Possibly, it was set
>>> higher in software?
>>>
>>>
>> REPLY:
>>
>> My 9500 idles at 76 mA with 3620 VDC on the plate.
>>
>> It was built in October 2014 but since I am the second owner I don't
>> know if the tube is still the original or not. Most likely it is.
>>
>> 73, Bill W6WRT
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>
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>
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