[Boatanchors] Microphone Output

[David C. Hallam]

What really precipitated my question was that I have an old Comdel 
speech processor that I finally repaired after having it sit on my 
operating desk for about 2 years.  It was given to me and I decided I 
wanted to get it working.  I plan to use it with either my Johnson 
Invader 200 or Hallicrafters HT-32B.  I have Turner 95D's for both of 
them.  I will put it on the dummy load and if what I see on the monitor 
scope looks OK, I will try it on air.

If all is OK I will consider repairing another one that I picked up a 
short time ago.  This second one is a real mess and I may not want to 
tackle it.  The 4 - D batteries were left in it and leaked. Fortunately 
the batteries are below the pc board so there is no corrosion there.  
However some one has done extensive work.  All the original transistors 
have been replaced along with a few of the film capacitors.  I got it 
for free so the price was right.

David
KW4DH

On 1/11/2013 4:03 PM, mac wrote:
> David,
>
> I's been an interesting discussion but don't believe we ever arrived 
> at a clear, specific answer to your initial question. Tell you what,  
> just run the output of your Turner through one of the traditional 
> high-gain mic input circuits using a 6AU6 or a 12AX7 as described in 
> the older handbooks and be happy.  :^)
>
> Dennis D.  W7QHO
> Glendale, CA
>
> *************
> On Jan 11, 2013, at 7:17 AM, David C. Hallam wrote:
>
>> When a microphone output is given at say -52db, what exactly does 
>> that mean?  -52db referenced to what?
>>
>> David
>> KW4DH
>>
>> -- 
>> A democratic government is the only one in which those who vote for a 
>> tax can escape the obligation to pay it.
>> Alexis de Tocqueville
>>
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>

-- 
A democratic government is the only one in which those who vote for a tax can escape the obligation to pay it.
Alexis de Tocqueville