[NJARC] Oliver Berliner on using 6L7/1612 in ham xmtr

[Ed Papson]

08/22/2015 

Great article. 
Too many people have a narrow design viewpoint on tubes locked 
into their intended end use. 
There is a guy in Japan along with many others (don't have link right now) 
that uses all sorts of older XMTR tubes as audio amps. Yeah, the filaments 
are very hungry and the plate supply >800VDC but their response is 0 - 100Khz within 1dB! 

I spend most of my hobby time checking out tubes. 

Working on a 12V regen design for the upcoming NJARC AM DX contest. 
Finished the audio section with a 12AE6 & 12K5. A 12VDC plate supply results 
in reasonable output for listening (~30mw). Using a 12EA6 for the RF amp & regen detector. 
The tubes run REAL hot but no problems with the 12V B+ supply. 

Best part, tubes are far more forgiving of bad designs - like mine. 
Just one drawback, drop them and the don't bounce like a transistor or IC... 

ed KC2QBK 


----- Original Message -----

From: "Alex Magoun" <alexmagoun at gmail.com> 
To: njarc at mailman.qth.net 
Sent: Saturday, August 22, 2015 9:55:09 PM 
Subject: [NJARC] Oliver Berliner on using 6L7/1612 in ham xmtr 

Just remember 
Reply = Poster 
Reply All = Everyone 

_________________________________________________________ 

Has anyone else thought of or tried this? 

www.radioworld.com/article/oliver-berliner-reveals-%E2%80%9Cthe-secret-of-the-sixteen-twelve%E2%80%9D/276900 . 

Alex 

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