hello to everybody,
those who have tried these pcb?
Aleph P 1.7 stereo preamplifier - gold plated PCB stereo set | eBay
I want to build this preamp in a simple way, only with three unbalanced inputs, advice on how to do it.
Does anyone know the input impedance and output impedance?
thanks for your help
those who have tried these pcb?
Aleph P 1.7 stereo preamplifier - gold plated PCB stereo set | eBay
I want to build this preamp in a simple way, only with three unbalanced inputs, advice on how to do it.
Does anyone know the input impedance and output impedance?
thanks for your help

Ah...those are Veteran's boards. See discussion here:
http://www.diyaudio.com/forums/group-buys/63356-one-more-aleph-p-1-7-clone.html
Cheers,
Dennis
http://www.diyaudio.com/forums/group-buys/63356-one-more-aleph-p-1-7-clone.html
Cheers,
Dennis
Do any vendors actually stock 10uF Wima caps that will fit the lead spacing on these boards, as shown in the photo on eBay?
here you go: WIMA Film Capacitors | Mouser
i think it's 27.5mm lead spacing(not 100% sure about this)
i think it's 27.5mm lead spacing(not 100% sure about this)
The Mouser wima ..have same lead spacing like mine 10uf wima...(i do not use those anymore)
Looks like a fine print those veterans boards
anybody know where to buy matched mosfet ?
Looks like a fine print those veterans boards
anybody know where to buy matched mosfet ?
if you'r thinking of the IRF610 i don't know of anyone who bothers to sell matched parts.(chinese e-bay sellers not included)
if the irf610 are the only one to mach ..i can buy some and try to mach them myself..or use the ones from my kk board
Find in a tread that Mr Pass write ,that the fairchild 9610 mosfet,, is better than the irf 9610
I am not sure if that only was in poweramp..but will like to know if this is the same for Aleph pre
I am not sure if that only was in poweramp..but will like to know if this is the same for Aleph pre
here you go: WIMA Film Capacitors | Mouser
i think it's 27.5mm lead spacing(not 100% sure about this)
I guess the MKS4s will fit, if you don't mind polyester, but the other three high-voltage polypropylenes will fit the lead spacing but the cap bodies will be too wide.
aha. i don't have tha part footprints for this Board, so i can't check that🙂
but why not use Panasonic film caps instead of wima? that works with this pre amp🙂
but why not use Panasonic film caps instead of wima? that works with this pre amp🙂
Audiosan
it was the irf9610 not irf610---here is link
http://www.diyaudio.com/forums/pass-labs/81601-transistor-question-irf9610-vs-sfp9610.html
it was the irf9610 not irf610---here is link
http://www.diyaudio.com/forums/pass-labs/81601-transistor-question-irf9610-vs-sfp9610.html
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