[K6NCG] Piece of K6NCG history (second attempt)

billgibson at fuse.net billgibson at fuse.net
Tue Jun 25 01:17:37 EDT 2013


Hello again gang , 
I apologize for the first attempt - a violation of file- size protocol - my bad. 
I built a quick link to make access to my files easier. 
Check the link:  http://www.wamdi.com/Stereo_Amplifier.html 
I built this stereo amplifier on the K6NCG workbench between October and 
December 1965 as a Christmas present for my parents. Many of the parts came 
from the shack stockroom which was generously supplied thanks to the Navy. 
The design ideas came from the ET School textbook (it uses a paraphase 
amplifier, remember those?) and tone controls from the 1962 RCA Tube 
Manual. Each channel uses push-pull 6AQ5s in the output. The Triad S-142A 
output transformers came from? (a supplier near Weinsteins on Mission St. or 
Market St.) in downtown San Francisco. RON CARMEN made many runs with his 
car in those days for guys like me to buy parts. Thanks Ron! My parents used 
the amplifier until 1985 but it still works today . Check out the technique  
inside the Bud Radio chassis and the original dymo labels! One of the guys in 
the club suggested the separate power supply to help reduce 60 cycle hum. 
Another project I built in a Bud Box was a 2-meter rig with regenerative 
receiver but I never worked anyone except the hams at the club – I think the 
RF output power was very small – don’t remember its fate. This may be the 
last known piece of K6NCG club-built hardware?? 

Other photos ...... now & then, we're still a Navy family plus my corporate 
pilot days. 

Bill - K4UC 


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