Hi Damir,
check the diameter of the drill holes at R24,R25. I recognized also, that the two diameters of each resistor are different, and even 2W resistor was hard to equip. For further order choose the bigger diameter for drill holes.
Pls keep me informed about Biino, and tell me your opinion about it.
BR
Günther
I had to buy jfets hope SK117 toshiba will do , 20 pcs .
Just ordered , are they ok from reichelt
Br. Toni
Just ordered , are they ok from reichelt
Br. Toni
Reichelt is good source, but I never bought those fets from there and can't garante thy not fake.
Awake again, we'll see . Hmmm the sk170 are obsolete but they cost 3.24 € good that i did not buy those when they where available would really pissed me off 70€ for fakes .
From my exp. The cheap transIstors sa1015,sc1815,0,042€bc556b,bc546b looks like diotek bd139,140 cdil
From my exp. The cheap transIstors sa1015,sc1815,0,042€bc556b,bc546b looks like diotek bd139,140 cdil
sa970,2240 not fakes but.looks like diotek or cdil.
Peakatlas pro75
Bc550c bc560c onsemi lowest vcesaturation 0.019
Philips genuine silver plated vce sat 0.022
Fairchild 0.022 - 0.024
Cdil 0.027
Fairchild bought from mouser, cdil from reichhelt just to test
Onsemi,philips from 1993 to 1995 from yleiselektroniikka.fi
Looks like onsemi is a winner .
Peakatlas pro75
Bc550c bc560c onsemi lowest vcesaturation 0.019
Philips genuine silver plated vce sat 0.022
Fairchild 0.022 - 0.024
Cdil 0.027
Fairchild bought from mouser, cdil from reichhelt just to test
Onsemi,philips from 1993 to 1995 from yleiselektroniikka.fi
Looks like onsemi is a winner .
Bc32740ta mouser vcesat 0.09-0.12 for cap. multiplier
Did not have bc33740ta , coming next week.
At same ordered some 2n5457 .
And some for other projects.
Did not have bc33740ta , coming next week.
At same ordered some 2n5457 .
And some for other projects.
Some of the small transistors you can find here: Transfer Multisort Elektronik - Electronic components
bc33740ta fairchild has low Vce (0.005V) measured with peaktech dca75pro.
About output transformer , seperate small stainless steel case outside main chassis with input/output three lead power connector , okay ? I don't need riaa stage or other very sensitive stage.
I would love a S/PDIF from computer card & convert the signal digital / (analog) and amplify with gainwire to poweramp (what is your opinion on this?) some sort of remote control with remote/my phone IR / universal . Or just controll the DAC volume ,hmm
Computer i use mostly to listen to music as my cd are in one place, I love good records at times I fall asleep at listening to a good stereo sound .
last missing components come tomorrow.
BR.Toni
About output transformer , seperate small stainless steel case outside main chassis with input/output three lead power connector , okay ? I don't need riaa stage or other very sensitive stage.
I would love a S/PDIF from computer card & convert the signal digital / (analog) and amplify with gainwire to poweramp (what is your opinion on this?) some sort of remote control with remote/my phone IR / universal . Or just controll the DAC volume ,hmm
Computer i use mostly to listen to music as my cd are in one place, I love good records at times I fall asleep at listening to a good stereo sound .
last missing components come tomorrow.
BR.Toni
You mean mains transformer? It's not necessary to use separate case, and why stainless steel, it's not ferromagnetic.
I don't think that PC sound card is good enough to be used as a source, better to use good external USB DAC.
Some stainless steels are magnetic. They need to be to enable magnetic crack detection to operate.
All steels have some iron content, even stainless steels.
Yes Andrew I know that, but what I implied is better to use "soft" iron with high-permeability instead expensive hard to work stainless steel for electromagnetic shielding.
I need to order two more boards for myself, some people showed interest in the PCB. Please let me know is there is interest, minimum order is five boards, and I need two, three more are for offer.
Damir
Damir