Hello !
A 40 amp. work so fine after 1 year, and l need to have proper preamp .
Where do l look,... of course passdiy.com. Balanced line stage is my
choice. l make it non balanced.
Chassis: 4 mm AL, front 10 mm,trafo 2 X 50 VA 30 V out.
Resistors: normal mtf 1%, 750 ohm 6 watt by RS electronic.
Capacitors: elna 100 V elco, at out audyncap 10 micro pp
Transistors: irf 610, 9610.
Volume out: bourns 2 x 5 k ohm.
Wire ofc silver plated.
About sound: deep and wide , low noise, lots of details.
Need more work( only 10 hours) bat it gives music new dimension.
Best wishes for all diy people from Croatia !
Predrag Pesa ( predrag.pesa@zd.hinet.hr
)
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