Zen Turns Twenty

[Blues]

4th Gen Zen. Updated the front end with jfet buffer...

 

[Zen Mod]

yup

you even got your buffer

😉

(should I tell you that he used it later , at least once 🙂, even more wakoo iteration ..... upwards witty Pa)

 

[woody]

I have a question about our use of a CCS in our ZEN amps. When you look on the tube forums most of the time when they want a CCS they will usualy build a cascoded one like in this circuite with 2 DN2540's. Has anyone investigated using a cascode curent source in a ZEN type circuite. After all when we are playing music the voltage across the CCS flucuates a great deal wouldn't it be better to hold it constant ?

 

[6L6]

After all when we are playing music the voltage across the Constant Current Source fluctuates a great deal wouldn't it be better to hold it constant ?

You wrote the answer, I just highlighted a bit... 😀 😀 😀

 

[Blues]

yup

you even got your buffer

😉

(should I tell you that he used it later , at least once 🙂, even more wakoo iteration ..... upwards witty Pa)

Good times...thanks again Papa! Point me to where I can check that out ZM?

 

[6L6]

Blues - Eyeballing it, the schematic ZM attached is about 3 resistors different than a Zen 4

PassDiy

 

[Zen Mod]

Good times...thanks again Papa! Point me to where I can check that out ZM?

can't tell ......... or my Birdie will be jeopardized

🙂

 

[Vix]

Zen Lite-maybe not the best sounding, but the most beautiful one. Warmly glowing lightbulbs in the dark...magic

 

[Blues]

can't tell ......... or my Birdie will be jeopardized

🙂

 

[Russellc]

I still have my boards I bought from Old Colony years ago. Zen, Bride of Zen, and Bride of Son of Zen. I keep threatening to build them...

Russellc

 

[coolnose]

13 years ago I made mine using a nail and a hammer!

Now that's neat! One can feel the effort 😉