Amps
[Top] [All Lists]

[AMPS] Blown TL922A... What to do?

To: <amps@contesting.com>
Subject: [AMPS] Blown TL922A... What to do?
From: 2@vc.net (measures)
Date: Wed, 6 Sep 2000 16:11:24 -0700
>
>> Tom- it does NOT take an EE to detect the bias. My professional specialty
>> was Rocket motors, with only enough electronics exposure to 'appliance
>> operate' good instruments, but my second specialty (used professionally,
>> too) was the detection and analysis of verbal BS. You and I both know of
>> another prime source, but he(they) change their tune, and use references
>> newer than 1935.  There is diversity there
>
>But then why does nearly every current-day HF amplifier manufacturer use
>"1935 technology" with the inclusion of the classic coil turned around a
>carbon composition resistor for the purpose of serving as a parasitic
>suppressor?
>
>If parasitics are of little concern, who on this list (manufacturers
>included) is perfectly comfortable with running (or manufacturing) their
>multi-band HF amplifier without a parasitic suppressor?  One manufacturer we
>know of uses an 8877 without the use of any suppressor, but other amplifiers
>in their product line do.  Does this infer that some of their amp products
>are prone to potentially damaging parasitics while others are not?
>
>-Paul, W9AC
>
good question, Paul.  During the Grate Parasitics Debate, six times, the 
designer of the AL-1500 stonewalled my question about whether the 1500 
uses a VHF parasitic-suppressor.  

cheers

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


--
FAQ on WWW:               http://www.contesting.com/FAQ/amps
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com


<Prev in Thread] Current Thread [Next in Thread>