Hi all
Carrying over a question from the GB thread. Got myself a FSP kit and sorting out some technical details to help acquire the rest of what I need for the build.
Probably already been asked...sorry ahead of time...can't get search to pop it up.
Salas:
"The 6.754K 25ppm is for R5 needing no R6 in parallel. Its a special custom value to avoid producing it through parallelism. So you solder it for R5 and you use no R6."
OK...sounds good...what about the 25ppm 47K value?...I only have 2 from the GB and there is 2 possible locations listed in the build guide.
Kevin
Carrying over a question from the GB thread. Got myself a FSP kit and sorting out some technical details to help acquire the rest of what I need for the build.
Probably already been asked...sorry ahead of time...can't get search to pop it up.
Salas:
"The 6.754K 25ppm is for R5 needing no R6 in parallel. Its a special custom value to avoid producing it through parallelism. So you solder it for R5 and you use no R6."
OK...sounds good...what about the 25ppm 47K value?...I only have 2 from the GB and there is 2 possible locations listed in the build guide.
Kevin
I do not have the knowledge to know what that difference doesbut I love to learn!
"The dissipation factor can be defined as: the value of the tendency of dielectric materials to absorb some of the energy when an AC signal is applied."
Capacitor ESR | Dissipation Factor | Loss Tangent | Q | Radio-Electronics.Com
I used a second set of filter caps next to the phono boards, also with a bit of extra R partly because I needed to knock the raw voltage down a bit.
For signal cabling I use the single-core shielded stuff from Apex Junior (Wire), I don't remember what gauge, either 22 or 24, it's silver-plated copper with PTFE insulation. For the umbilical and to carry DC from the jack to the cap boards I used the "Mil-Spec M27500-22SD2T23" from the same page. It's shielded twisted pair, very high quality, and very nice to work with. For the very short hop from the cap boards to the phono boards I just used twisted pairs of hookup wire.
I have 2 low idss pairs and one over 5ma that are tightly matched. the other 2 pairs are not that close.
3.36+3.38 for Q2x and 3.90+3.92 for Q5x since you mention lower idss is better for these positions.
5.69+5.71 for Q7 since any idds range is ok. Should I adjust R15?
3.99+4.36 for Q3x since these are for rail voltage and the end result can be adjusted in the trimpot.
Does this sound good?
Because maybe handier for Q3x if having the standard R3x. Just economy of options. All can be used with the proper calculations for resistors anyway.
Sounds good, only make R15 2.4K so to have good voltage across Q7
Also make R3x 8.2k for nice range in trimming Rail+ for that Q3x Idss pair
Marginally beneficial in low MC gain maybe if there is something rail related suspected to iron out. More in the heavy local decoupling sense.
In your much lower gain MM configuration, with custom mystical grounding of black background, no benefit
Marginally beneficial in low MC gain maybe if there is something rail related suspected to iron out. More in the heavy local decoupling sense.
In your much lower gain MM configuration, with custom mystical grounding of black background, no benefit
Good to know We have gotham cables in europe, I have a local reseller near my house.
The cables are of great quality, similar to mogamy and canare. Try to find a pro audio shop nearby, they normally have cables by the meter available.
If you need I can send you a meter or 2 from gotham cables. I'll be buying for myself as well!
The cables are of great quality, similar to mogamy and canare. Try to find a pro audio shop nearby, they normally have cables by the meter available.
If you need I can send you a meter or 2 from gotham cables. I'll be buying for myself as well!
