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21st November 2019, 05:39 PM
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#11 |
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The one and only
Join Date: Mar 2001
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Yes, we want the voltage across the resistors.
And be careful, that's 78 volts... |
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21st November 2019, 09:00 PM
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#12 |
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diyAudio Member
Join Date: Jan 2013
Location: Elkhart Lake, WI
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You may want to buy the rubber high voltage gloves technicians use on electric/hybrid cars. You can find them at most electric supply stores.
They are bulky and uncomfortable, your hands will sweat inside them, however, it sure beats accidentally touching 78 vdc, That kind of early retirement is not what it's cracked up to be.
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ACA v1.6 monoblocks, Balanced Zen Line Stage, M2x, B1 Korg triode, 12AX7a Phono amplifier, Balanced B1 Korg triode, 6FG6 "Magic Eye" tube VU meter |
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21st November 2019, 11:29 PM
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#13 |
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diyAudio Member
Join Date: Oct 2009
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threshold s450e
What voltage do I have to have in each of the 1ohm resistors?
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22nd November 2019, 12:05 AM
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#14 | |
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The one and only
Join Date: Mar 2001
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Quote:
And you can use the following guide to get to 50 deg C. |
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22nd November 2019, 11:25 AM
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#15 |
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diyAudio Member
Join Date: Oct 2009
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threshold s450e
thanks for helping me but I'm a little lost
Where do I have to take a voltage as a reference and what should it be? I have the temperature probe. |
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22nd November 2019, 11:26 AM
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#16 |
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Official Court Jester
diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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post pictures and it'll be shown
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my Papa is smarter than your Nelson ! clean  thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa...© by Mighty ZM 
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22nd November 2019, 05:26 PM
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#17 |
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The one and only
Join Date: Mar 2001
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There are a bunch of 1 ohm resistors on the output stage. Each of them has
two wires coming out at the end. The DC voltage is between one of those wires and the other. |
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2nd December 2019, 12:40 AM
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#18 |
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diyAudio Member
Join Date: Oct 2009
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Threshold s450e
I already have it set at 45 degrees Celsius and it is perfect.
Now I have to adjust a T200 that I don't have the adjustment values. Thanks for the help |
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2nd December 2019, 08:45 AM
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#19 |
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diyAudio Member
Join Date: Feb 2014
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Just got a couple of SA-2 that run a bit cold to the touch.
I am planning to inspect them and adjust the bias if needed. Would anyone be able to confirm that 150mV is the correct value for the voltage drop across the emitter resistors? Thank you in advance for any help. Marco |
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