CJ Preamp -"Dee" sound, any help??

Harry,

Let me check my reference in hififever office at coming SUN.
Will let you know the result soon.


KK.


[quote:b61caf3d08="hpn"]With guidance and patience of KK and William, I finally completed
my first DIY toy.   

However, there is a problem to be resolved – this is "dee" sound that existed before the output delay started, but once the output delay started, the "dee" sound disappeared.   

Any member have such problem, and know the solution :?:

KK,
Have you received by email sent this Monday?  I've re-soldered the grounding to the output delay board, but the problem still exist.

Harry[/quote]

Harry,

Not the delay board, I know what happen, will test at Sunday.

Will let you know ASAP.

I cannot test it at my home because all equipement send to HF APM office.

KK



[quote:97ea8b25f3="hpn"]KK,

Thanks, and await your advice.  

This morning, I removed the output delay and connect direct to the RCA output pin.  The "dee" sound disappeared.  So, it appears the problem is with the output delay.

Harry[/quote]