[Amps] Follow-up...re: Time to ask for help.

[Roger]

"I'm confident my DC is stable."

Scratch that. I misunderstood the statement:

"He has to make the amp DC stable before hooking up the input and output RF
networks."




73, Roger
AI7RR

On Sun, Jul 26, 2015 at 5:50 PM, Roger <ai7rogerroger at gmail.com> wrote:

> Sorry, I thought it was clear what I was trying to do. I have four 4x150a
> tetrodes in parallel, attempting to make them operate on 50mhz. I'm
> confident my DC is stable. Additional information includes, a Pi tuned
> input and output. Input and output terminations are quality 50 ohm devices.
> Power supply and rf deck are in separate boxes. My problem appears to be
> related to instability possibly caused by insufficient or incorrect
> neutralization.
>
> It was mentioned that the neutralizing cap needed to be by-passed and
> that's something I have not even considered. By-passing anything in the
> grid circuit seems contradictory to me.
>
>
> 73, Roger
> AI7RR
>
> On Sun, Jul 26, 2015 at 3:56 PM, <donroden at hiwaay.net> wrote:
>
>> Quoting Ron Youvan <ka4inm at gmail.com>:
>>
>>
>>>  I am trying to find out what you are trying to do.
>>>>
>>>
>> Me Too Ron,
>>
>> He has to make the amp DC stable before hooking up the input and output
>> RF networks.  We don't know if that's the case yet.
>>
>> Don W4DNR
>>
>>
>>
>>
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>>
>
>