Finally, I received 5R6 and 6R2 Takman REY. Installed 5.6 (instead of 5R1) and no improvement. Still hear that pop up noise at high volume.
Will install 6R2 tomorrow.
Again, it is only appears when TT cable is connected and other side has no cart. With cart same noise. Dead quite when inputs are in air.
Couldn't wait till tomorrow and installed 6R2 now. Same issue! What is interesting, it's noisy for 5-7 sec then 5-7 sec is quite. It's like coming and going with that time frame. Going to connect generic RCA cable to the input and other side will leave open. Let's see if it is something on my TT cable.
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Still pups up with generic RCA cable. At that point, does it make sense to replace all four 369?
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I wouldn't know from experience about this noise but it would also cross my mind to change the 369s in the end. Weird thing is that the noise was not there before but it did not appear right after the Cmult incident either. It still could be coming from the TT.
So the issues appear when the TT is connected, when normal open ended RCA Cables is connected but not when there is nothing connected? Stop blinking with your cheap IKEA LED😉
I had some similar issues when using a LP Benz feeding the folded that used very long cables between the folded and the power amp.
Do you have any dc offset at the input ?
Do you have any dc offset at the input ?
I doubt it is a TT cable, since I had same noise when I connected 2m generic RSA to the input.
I'll assemble my first FSP with Mundorfs and see how it's.. Will be same PSU and different FSP. I'll report soon. I'm afraid that it might be still PSU makes these small picks with very high frequency and I did not see them on scope. Might go to set some level on triggering to try to catch it.
I'm familiar with the DC offset in amps on outputs...
How to measure it on FSP inputs and what to expect there? Please educate.
There is nothing to expect unless there is significant gate leakage from problematic input FETS
Means input Vdc should be very-very close to "0"? If some DC is there, means FETs are dead. Right?
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Virtually zero, yes. Even good FETS can leak some gate current if VDS is high. Its called gate excess current IGSX and there is a chart in the TOSHIBA datasheets. It takes a large value input resistor to see any mV developing due to that current.
Sorry guys, I did mislead you. I checked today again and have no noise when generic RCA 2+ meter long cable is connected. I did not know what I heard previous time. It is quite with it.
Nick, you are right (as always) and must be a TT cable!
I connected second FSP (100% good) and hear same noise. So, it is not phono for sure. And not PSU too.
The challenge is to find what is wrong with my TT cable....
To replace it? Which one will be 100% built-proof and high quality to suit my TT and cart level?
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Nick, you are right (as always) and must be a TT cable!
I connected second FSP (100% good) and hear same noise. So, it is not phono for sure. And not PSU too.
The challenge is to find what is wrong with my TT cable....
To replace it? Which one will be 100% built-proof and high quality to suit my TT and cart level?
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At the end of 16th century W. Shakespeare wrote Much ado about nothing
And a few years later also All's well that ends well 😀
And a few years later also All's well that ends well 😀
Maybe use your LCR meter to know the pf of your generic and then diy one from say Mogami or other big pro cable reputable manufacturer where you can read trusty spec on their products. At least isn't going to cost too much. Thinner microphone or patch bay types are nice. Easier to dress around and closer to a generic's thickness.
Will do. Thank you a lot.
Do you know any particular part type number from Mogami and other even boutique brands that commonly used and appreciated in out community?
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Do you know any particular part type number from Mogami and other even boutique brands that commonly used and appreciated in out community?
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