[ARC5] R-27/ARC-5 Hookup Question

[J. Forster]

OK.

Next question, does the screen current of tubes give an indication the
tubes are getting 'weak'- having low emission?

I can see that it would change w/ gas.

-John

==================



> It's basically a go/no go indication, John.  There is a range of normal
> readings, and if it's outside that range, then you have to use your
> noggin and the Theory of Operation and Maintenance sections of the
> manual to find out why. (cf. Paragraph 5-18 in the AN/ARC-5 manual for
> the process.)
>
>   - Mike
>
> On 7/20/2013 8:18 AM, J. Forster wrote:
>> Mike,
>>
>> Do any of the manuals on the receivers or test sets give any details
>> about
>> the use of screen voltage in testing or aligning the receivers, or is it
>> just a go/no go indicator AFAYK?
>>
>> -John
>>
>> ============
>>
>>
>>
>>> On 7/19/2013 7:51 PM, Kenneth G. Gordon wrote:
>>>> On 19 Jul 2013 at 14:46, J. Forster wrote:
>>>>> Does anyone have an opinion why they bothered to bring the screen
>>>>> saupply
>>>>> out to a pin?
>>>> In my opinion, it was used when testing the receiver to make sure
>>>> those
>>>> two black wire-
>>>> wound resistors in the rear were OK.
>>> Exactly right.  See the Command Set Test Equipment page at
>>> http://aafradio.org/docs/Command_Set_Test.html and the SCR-274N test
>>> set
>>> page at http://aafradio.org/docs/ARC_Test_sets.html
>>>
>>>        73,
>>>    - Mike
>>>
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>>
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>
>