starcat Posted January 23, 2021 Report Share Posted January 23, 2021 Thread seems to be dead, all builders left 🙂 Quote Link to comment Share on other sites More sharing options...
mwl168 Posted January 23, 2021 Report Share Posted January 23, 2021 The original design of Blue Hawaii uses 2SK170 BL grade which has the IDSS grade in the same range of LSK389B. Double check the data sheet to confirm. 2SK170/LSK389 are JFET so using either 10K or 50K volume pot should be fine. 10K pot may be more ideal if your source can drive it. 1 Quote Link to comment Share on other sites More sharing options...
mwl168 Posted February 28, 2021 Report Share Posted February 28, 2021 Switched from Megatron to the Blue Hawaii this morning. Different sound signature but equally as satisfying. This one is not the BJT version but the one that uses 2SK216/2SJ79 with cascoded CCS and adjustable plate current.  4 Quote Link to comment Share on other sites More sharing options...
audiostar Posted April 9 Report Share Posted April 9 Very interesting, someone here is calling the BH an "Orpheus clone"... @kevin gilmore Quote Link to comment Share on other sites More sharing options...
kevin gilmore Posted April 9 Report Share Posted April 9 that person is a moron. the orpheus has 3 capacitor coupled stages. the BH is completely dc coupled. 4 Quote Link to comment Share on other sites More sharing options...
chinsettawong Posted April 10 Report Share Posted April 10 Maybe he was referring to the DIY headphones he was testing. Quote Link to comment Share on other sites More sharing options...
spritzer Posted April 10 Report Share Posted April 10 Yeah, those are the one Milos was working on. Quote Link to comment Share on other sites More sharing options...
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