Hi audioguru!
it's a great honor to receive a message from the master so thank you for replying my mail! i've been wanting to build one for years and hopes this will work well...just to confirm, the circuit by mvs sarma is the final version you mentioned? Btw, in mvs sarma PCB design it does not have any pour copper to reduce high frequency noise in it.(leaving all unused copper behind and grounding it) Is it advisable to do so? Again, thank you for your reply! have a great day!