Seabstudio
Active member
- Joined
- Jul 6, 2012
- Messages
- 36
Good evening everyone,
After many days and evening tried to troubleshoot my problem, I come here to have the opinion of the pro in electronic
I am still relatively begineer to Tube but I am very careful to respect the basics.
I bought the Valve Wizard book 1 year ago and learned a lot of things and tweak a lot of Preamp or DI with success
So I tried to optimize all the sensitive points of my spring reverb and redo all my new unit (resistors 2W , Coupling caps with the same value) The reverb sounds really great, the noise was divided by two from original
But the problem (and from the beginning, no matter what the planof ground I use ( omnibuss / Star ground ...multistar I have a Dry leak to the WET signal from the preamp.
If I disconnect the RCA for Reverb Tanks I hear that Dry sound too ( not full bandwitch , a sort of hipass in dry with litlle distortion )
Here is the shematics I used for mod : (Dr. Zee)
I remove the dry channel tap , same leak too
https://drive.google.com/drive/folders/1Btv6iHbOhqUeYK9Pk1ORdRWz61VU_bAG?usp=sharing
Do you have any advice when looking at the schematic where the problem might come from please ?
I have been going around for months without being able to get rid of it :-\ :-\
I noticed the reverb transformer also radiates a lot (12DW7 Cathode follower + impedance matching transformer to drive a highZ tank ) , I noticed that it could radiate enormously (but I tried several positions without success.)
If you have any ideas , it will be really cool !
Thanks in advance
Seb from France
After many days and evening tried to troubleshoot my problem, I come here to have the opinion of the pro in electronic
I am still relatively begineer to Tube but I am very careful to respect the basics.
I bought the Valve Wizard book 1 year ago and learned a lot of things and tweak a lot of Preamp or DI with success
So I tried to optimize all the sensitive points of my spring reverb and redo all my new unit (resistors 2W , Coupling caps with the same value) The reverb sounds really great, the noise was divided by two from original
But the problem (and from the beginning, no matter what the planof ground I use ( omnibuss / Star ground ...multistar I have a Dry leak to the WET signal from the preamp.
If I disconnect the RCA for Reverb Tanks I hear that Dry sound too ( not full bandwitch , a sort of hipass in dry with litlle distortion )
Here is the shematics I used for mod : (Dr. Zee)
I remove the dry channel tap , same leak too
https://drive.google.com/drive/folders/1Btv6iHbOhqUeYK9Pk1ORdRWz61VU_bAG?usp=sharing
Do you have any advice when looking at the schematic where the problem might come from please ?
I have been going around for months without being able to get rid of it :-\ :-\
I noticed the reverb transformer also radiates a lot (12DW7 Cathode follower + impedance matching transformer to drive a highZ tank ) , I noticed that it could radiate enormously (but I tried several positions without success.)
If you have any ideas , it will be really cool !
Thanks in advance
Seb from France