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69.71.1.1
In Reply to: RE: Output Z / Cable Capacitance posted by mobiasloop on April 02, 2015 at 07:03:42
Here is the Wavetek white cathode follower using the 5687.
"...the fool doth think he is wise but the wise man knows himself to be nothing but a fool." Will Shakespeare
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With the 6AU6 in place, you'll have way too much gain for the circuit to be that useful.
In the case of the schematic above, I find White Cathode Followers to be fun to study and mess with, but quite fussy and somehow not quite as "together" as a normal cathode follower. I wouldn't expect good performance with the 5 Ohm load on the top triode.
Thank you! Yes, I'm not using the 6au6 stage, just considering the cathode follower output stage using the 5687. My first stage is a 12aY7/6072A as a diff amp. Jim
"...the fool doth think he is wise but the wise man knows himself to be nothing but a fool." Will Shakespeare
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