[time-nuts] Strange E3610A PSU - Old revision
cfo
xnews3 at luna.dyndns.dk
Mon Jun 11 19:18:58 UTC 2012
I just bought a E3610A PSU on ebay , as defective.
Main problem right now is ... This seems to be an older revision
And has other comp values , than the "Schematic on the net"
Comp Item - Org Value - Inserted
value
----- ------------------- --------------------- -----------------
R19 CC frontpanel Pot - 10 turn 10k - 1 turn 10K
U2 12v Regulator - MC7812CT - LM340T12
U4 Current OpAmp - LF442CN - LM1458N
U5 CC/CV Indicator - LM393CN - LM393N
U1 Voltage OpAmp - LF411CN - LM741EN
U3 Volt Ref - LM336-5.0 5.0v - LM329 6.9v
PCB PCB number - ??
C7 Pos. REF CAP - 330uF 50v - 330uF 50v
C13 Neg. REF CAP - 470uF 50v - 330uF 50v
I posted some pics here.
http://tinyurl.com/cn9p4s9
Does anyone have a schematic of a E3610A , that might have ie. LM1458 in
it or a 6.9v Ref , instead of a 5v Ref ?
Tia
CFO Denmark
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