av98m 0 Report post Posted June 27, 2006 Akan Datang.... Share this post Link to post Share on other sites
huangyong 0 Report post Posted June 28, 2006 WOW .... look at the parts, spend so much on such simple circuit.. Share this post Link to post Share on other sites
av98m 0 Report post Posted June 29, 2006 The design is anything but simple. I have no idea what gave you that impression. Share this post Link to post Share on other sites
Barradio 0 Report post Posted June 29, 2006 "such simple circuit.." Yes it simple once someone put it together the circuit but to come out the simple circuit it take many sun and moon. Share this post Link to post Share on other sites
av98m 0 Report post Posted June 29, 2006 "such simple circuit.." Yes it simple once someone put it together the circuit but to come out the simple circuit it take many sun and moon. Indeed It's like fried rice. A very "simple" dish but to do it well requires proper ingredient selection(only a few ingredients, but they must be fresh and of high quality) and requires that the chef has a good foundation in all the basic skills of chinese cooking, such as control of the fire/heat, skill with the wok, timing etc. This is why it is sooo hard to get good fried rice in restaurants. Share this post Link to post Share on other sites
thedoctor 0 Report post Posted June 29, 2006 The design is anything but simple. I have no idea what gave you that impression. two Opamp, with what looks like a single JFET biased Class A. two voltage regulators, with what looks like a dual rail power supply. lots of Wima MKP 0.1uF/160V caps with what looks like a crossfeed circuit, or a CRC filter, perhaps? yet i have idea the the use of the 8 TO-220 parts below the RCA jacks. mind to explain what exactly did you do? looks like an unbuffered headamp. Share this post Link to post Share on other sites
huangyong 0 Report post Posted July 1, 2006 The design is anything but simple. I have no idea what gave you that impression. two Opamp, with what looks like a single JFET biased Class A. two voltage regulators, with what looks like a dual rail power supply. lots of Wima MKP 0.1uF/160V caps with what looks like a crossfeed circuit, or a CRC filter, perhaps? yet i have idea the the use of the 8 TO-220 parts below the RCA jacks. mind to explain what exactly did you do? looks like an unbuffered headamp. hey doc, tt's what excatly I thought, with the active components count, not too complicated. the circuit looks more like CRC to me, as crossfeed generally has more resistor than caps, if i m not wrong. Share this post Link to post Share on other sites
av98m 0 Report post Posted July 2, 2006 (edited) Wait for the remaining modifications to be completed,probably in a week's time and all shall be explained(the photos only show partial views). In its original form, it has served me reliably without fail for over 2 years of heavy usage giving an extremely high level of performance beating several commerical units that I've heard. Which is a lot more than can be said for a whole series of projects started but never finished(or just flat out failed) that I've seen here. All by the same person no less. And yes its a headphone amp and preamp. The old timers should be well familiar with this unit. Edited July 2, 2006 by av98m Share this post Link to post Share on other sites
Q00 0 Report post Posted July 2, 2006 upgrade to the bigben?? Share this post Link to post Share on other sites
av98m 0 Report post Posted July 7, 2006 upgrade to the bigben?? Not so much an upgrade. More like cosmetic surgery. Share this post Link to post Share on other sites
