[AMPS] New World Record for 8877 Replacement

Rich Measures measures@vc.net
Thu, 17 Jun 1999 13:40:47 -0700




>>>GOOD GRIEF + what a waste!!  Caveat Emptor!!
>>>
>>€  So maybe it's a good idea to use a VHF suppressor in an 8877 at HF? 
>
>It's too bad W8JI left the reflector before this came up.  

€  Did Tom Rauch say that he was leaving?

> He claims you 
>can stabilize an 8877 w/o a suppressor.  I believe that's possible since 
>I've stabilized a 4-1000 w/o a traditional suppressor as well.  Is the 
>Ameritron amp properly designed to operate w/o a suppressor?  Perhaps not. 
> I'd like to hear the opinion of the man who designed it, however.
>
€  It may be hard to get an answer, Jon.  During the grate parasitics 
debate, I asked Tom Rauch at least seven times whether or not the AL-1500 
used a VHF parasitic-suppressor, and he stonewalled me.  //  During the 
debate, a (shy) reader ran the 8877 on a computer app. for amplifier 
design he used at work. He told me that the 8877 is capable of 
oscillating above 100MHz due to the amount of feedback-C and gain.  
>
-  later, Jon


Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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