Tough luck... Only one out of 50 drops within the required range for Q1 and Q2.... Sigh....
Could you please have a look at the values I got and advise how should I proceed? Should I get more or could we work something out with those values?
7,22
8,47
8,76
8,95
9,01
9,21
9,4
9,44
9,49
9,49
9,52
9,68
9,68
9,72
9,72
9,76
9,77
9,8
9,8
9,81
9,91
9,92
10,04
10,05
10,1
10,15
10,2
10,21
10,3
10,3
10,3
10,32
10,33
10,34
10,4
10,42
10,42
10,45
10,48
10,49
10,52
10,62
10,64
10,67
10,75
10,76
10,8
10,93
11,04
11,12
Thanks again
Could you please have a look at the values I got and advise how should I proceed? Should I get more or could we work something out with those values?
7,22
8,47
8,76
8,95
9,01
9,21
9,4
9,44
9,49
9,49
9,52
9,68
9,68
9,72
9,72
9,76
9,77
9,8
9,8
9,81
9,91
9,92
10,04
10,05
10,1
10,15
10,2
10,21
10,3
10,3
10,3
10,32
10,33
10,34
10,4
10,42
10,42
10,45
10,48
10,49
10,52
10,62
10,64
10,67
10,75
10,76
10,8
10,93
11,04
11,12
Thanks again
They are BL alright though, so it can be worked out. Which is the cartridge and its nominal output I need to know first.
OK, I will let you know what you can best do with your Jfets and cart at a point soon. Got those K170s from Mouser BTW?
no they are from ebay... risky business I know...
But I will add a few more of them in my next mouser order. probably this week.
Thanks a lot in advance for your trouble
But I will add a few more of them in my next mouser order. probably this week.
Thanks a lot in advance for your trouble
WOW that was super fast. Thanks a lot again 🙂
I have gone through mouser to find some suitable components. I basically chose from Vishay Metal Foils and Kamaya carbon composition (both where available), vishay polypropylene for RIAA and Cornell Dubilier polypropylene for output.
It is not meant as a fancy all-out build, but rather a decent one to give me an insight on how the circuit sounds and behaves.
Could you please have a look at my list in case you have any suggestions? thanks
https://gr.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=fb07ee4144
Dimitri
I have gone through mouser to find some suitable components. I basically chose from Vishay Metal Foils and Kamaya carbon composition (both where available), vishay polypropylene for RIAA and Cornell Dubilier polypropylene for output.
It is not meant as a fancy all-out build, but rather a decent one to give me an insight on how the circuit sounds and behaves.
Could you please have a look at my list in case you have any suggestions? thanks
https://gr.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=fb07ee4144
Dimitri
Its certainly a decent components list, good tolerances. Especially the Dale resistors are nice. About those Cornell Dubilier output MKPs or the Vishay MKP416 as stage couplers I have no subjective experience.
For the CMF55,
There are now more .1% and 25ppm ones available in the states, and I would recommend them for the cost, about .47usd, if you can get them in those values. A good price for a resistor with a tight tolerance and low tempco.
My preamp is in getting some new aluminium cloths 🙂
I'm waiting for a toroidal transformer also a very nice power switch/button to be installed in the front of the case.
Despite buying some Mundorf Mcap 0,1 for interstage coupling i didnt liked so i used some NOS ERO Mkp1845 0.047uf wich sounded more balanced. Also i changed the 15nf capacitors in RIAA to NOS Ero kp1830 (MKP1837).
I will change also the resistors in RIAA network with some more precisee ones as i'm preparing a bigger order to Farnell next week.
By the way wich resistors to order to Farnell, carbon film, metal film ?
I'm waiting for a toroidal transformer also a very nice power switch/button to be installed in the front of the case.
Despite buying some Mundorf Mcap 0,1 for interstage coupling i didnt liked so i used some NOS ERO Mkp1845 0.047uf wich sounded more balanced. Also i changed the 15nf capacitors in RIAA to NOS Ero kp1830 (MKP1837).
I will change also the resistors in RIAA network with some more precisee ones as i'm preparing a bigger order to Farnell next week.
By the way wich resistors to order to Farnell, carbon film, metal film ?
Attachments
Nice one. How much time did you break in the Mundorfs? Im getting some plain MCaps and some plain supremes this week, and I was wondering what to expect
Avoid the white Mundorf with the red letters in signal path and give time to the supreme.
The Obliggato MKP oil can with cockroach head is good value for money for output, big & weird to mount. But retro, I like.😀
The Obliggato MKP oil can with cockroach head is good value for money for output, big & weird to mount. But retro, I like.😀
Would you use any bypass cap with the obbligato MKP oil caps? Does the teflon 0.22uF FT-3 caps used as bypass cap be a to high value used with a 2uF cap?
I am truly sorry that matching is not my strong side. :-( Because of this lack of knowledge I feel I have to ask some silly questions, but my eagernes to listen, read and learn is very strong. 🙂
With the kindest regards
Martin
I am truly sorry that matching is not my strong side. :-( Because of this lack of knowledge I feel I have to ask some silly questions, but my eagernes to listen, read and learn is very strong. 🙂
With the kindest regards
Martin