In the modification of A80RC, I did the record amp with tubes and silver transformer first, at that time Electric Print Audio still got enough silver wire for the project and told me that will be all, he won't store anymore silver with today's price, so when I did the repro amp's mods that had no choice to use a copper transformer but still got a good result. after we asked Jack ( guy of Electric Print Audio ) to do something for the final pair of silver out put transformer, he finally made a really final pair with all the material that left and that is done for sure, no more! we paid $680 before and this final one is $1250, also with the silver price of today will charge for $2500. the total silver transformers used in this project is 6 out-put and two in-put, this project will out of mind if start today.
In calibrate, one of the two A80's left channel drop after 10K in recording, head and recording card both are OK because working fine in another machine, the only probability will be the cable to head problem, so far all the sound path are in silver except those head's cables (record & repro), we try to fix that problem at the same time did the final touch up to change all those cable to silver too, if you have the experience of up grade the tonearm cable to silver and this one here will have the same effect too. 4N 30 AWG silver will do the job price only $4/ft but you have to make the shielding by yourself, I wrap with aluminum foil as shielding but to install is a big job, with the help of Roger the serviceman still cost 2 hours for one machine, so many parts had to break away for installation ,
finally problem fixed and the recording system all in silver too, that will be end of this project, next is to find good tape for making copies.
tony ma
In calibrate, one of the two A80's left channel drop after 10K in recording, head and recording card both are OK because working fine in another machine, the only probability will be the cable to head problem, so far all the sound path are in silver except those head's cables (record & repro), we try to fix that problem at the same time did the final touch up to change all those cable to silver too, if you have the experience of up grade the tonearm cable to silver and this one here will have the same effect too. 4N 30 AWG silver will do the job price only $4/ft but you have to make the shielding by yourself, I wrap with aluminum foil as shielding but to install is a big job, with the help of Roger the serviceman still cost 2 hours for one machine, so many parts had to break away for installation ,
finally problem fixed and the recording system all in silver too, that will be end of this project, next is to find good tape for making copies.
tony ma