opacheco

U73b - schematics with calibration data
« on: February 11, 2019, 05:46:18 PM »
Hi again!

I would like to know if do someone have a copy of U73b - schematics with calibration data??.....


Thanks a lot anticipated,
Opacheco.
I love the Vaccum Tubes Sound!!!



opacheco

Re: U73b - schematics with calibration data New
« Reply #2 on: February 11, 2019, 07:09:06 PM »
http://audio.kubarth.com/rundfunk/index.cgi has what you need.

Hi again dear friend!!....

I am would like to get the Calibration data in order to test the DC points for all the unit (the DCvoltage for 0 volts ac signal), the mA of current flowing for the tubes (Q point of them!) accordint to the design and any notes of the manufacture or DIY for verification process, I won't like to fry a transformer!!

BTW: did you finish your U273 project?, few years ago I contacted for.

Thanks a lot,
Opacheco.
« Last Edit: February 11, 2019, 09:11:39 PM by opacheco »
I love the Vaccum Tubes Sound!!!


 

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