Itch now playing.
Play Sketches of Spain by Miles Davis too
ECC81 now is using 2V red LED
So it takes two IRs to about match but it will go bit over >2V maybe 2.2V+
I like Kind of Blue 180gr.
Pivotal Jazz classic
And remember that you will get a very small value, picoFarad, that is 0.000000000001, so you will end up with a few of those.
Thanks stajo, could you draw the jig to test the input capacitance or link an image where I can see to make it?
So it takes two IRs to about match but it will go bit over >2V maybe 2.2V+
I measure how much voltage is across the red LEDS.
Pivotal Jazz classic
No, Columbia.
Attachments
Matching problem. One IR is too little two are too much.
Don't worry I will left the red LED. Attached pic with other vinyl pearl.
Attachments
Pivotal Jazz classic
It's a record label?
Thanks stajo an image worth more than thousand words.
Salas do you know the input capacitance of Itch?
50-100ish pF dominated by
Attachments
Thanks stajo an image worth more than thousand words.
Yw. Btw I mean continue raising frequency until the signal voltage has dropped to 70% of the starting voltage ofc. You may have to try different starting frequencys and/or input resistors until you see a drop.
Salas do you know the input capacitance of Itch?
I had only roughly calculated it. This is a very low transfer capacitance tube we use here. Should be in the 60pF to 70pF range at our about 85x gain including strays.
It's a record label?
No its a phrase I used meaning a turning point in the history of Jazz
"Kind of Blue has been regarded by many critics as jazz's greatest record, Davis's masterpiece, and one of the best albums of all time. Its influence on music, including jazz, rock, and classical genres, has led writers to also deem it one of the most influential albums ever recorded. Kind of Blue was one of fifty recordings chosen in 2002 by the Library of Congress to be added to the National Recording Registry, and in 2003, it was ranked number 12 on Rolling Stone magazine's list of the 500 greatest albums of all time."
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