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Basic Topics:

Summary of AFX Project
 AFX Basic Filter 
 Adanced AFX Basic Filter 

Advanced Topics:

-> AFX 'V' Variable Filter <-
(1RL-Manual Control)
(3RL-Manual Control)
(1RL-Fet Control)
(3RL-Fet Control)
(3RL-2F8AFQ) 

(AFX 'T' Triad Filter)

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< Radical All-Pass Projects >

    Non-Linear Non-Resonant       AllPass_Experimental_Filters   
   Dual-Notch  Phase-Filter 
                 Published Projects                          

  Schematics
 KC9ON C.A.L.F.  Active Filter 

   Circuit Documentation : 
 about the Topics , Measurements
and Terms used

Digital Documentation :  
of the Differential Dual-Notch circuit 
Dobromir Dobrev , Ph.D ,
Bulgarian Academy of Sciences  

 

More Projects : 

***     P2S : Parallel-to-Sum

***     P2D : Parallel-to-Differential

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->  Research Gate Net  <-

Project-Papers

”Analog Phase-Filtering


in OpAmp Active-Band-Pass

Circuits”

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   ( Author's BreadBoard )

   ( University of Tennessee, 1977 - 1997 ) 

  

 

____________________

---> Linux <---

'Cold-Tar-Backup'
executable script
for Puppy Linux

12 Running
Puppy Linux Installs

Can be run entirely on flash-drives,
with no hard-drive attached.  

Browser 
IRON 69 
PaleMoon 26

_________________ 

Vintage Computer 
Rockwell AIM-65
 

Activities:

Electrical Repairs

Old Circuit Diagnostics.

Knob-and-Tube Renovation.

       
Ham Radio Station
 
Long-Wire Antenna 

       
-.-. --.-  QRP  CW  only  -.-. --.-        
    
QRZ.com page

QRZCQ

QRZ

If Master is happy,    

then Puppy is happy !    

Let our time be a good memory in the mind of God.

In the Beginning ... the real world was Analog , 
is Analog today  ...  and will always be Analog. 
Digital is just data-processing.  

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