I was going to post a link to the mouser part: manuf# NTE5275AK but nada. Then I googled, even more nada. Are these very useful parts also a thing of the past? The modern world just won't stop pissing me off.
Here's the old datasheet for the NTE chassis mount zeners, as it says add a K suffix for the reverse. If someone knows the current equivalent and where to source please post.
A Rocket born - newbie voltage questions
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Re: A Rocket born - newbie voltage questions
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Re: A Rocket born - newbie voltage questions
How is the build progressing?
In my thread I've been banging on about the dissipation per tube I'm experiencing.
Looking at the comparison spreadsheet I notice an error, undoubtedly it has been discovered a very long time ago. The screen grid voltages are wrong, the voltage on the screens is positive than the supply. I wouldn't put a lot of faith in this spreadsheet, I'd be using it as a rough guide.
Assuming the screen grid has ten percent of the total current, with rail of 290VDC the EL-84's are dissipating 10.2 watts each.
Your amp with a 332VDC rail seems to be dissipating 15.3watts per EL-84 which I'd think is excessive.
In my thread I've been banging on about the dissipation per tube I'm experiencing.
Looking at the comparison spreadsheet I notice an error, undoubtedly it has been discovered a very long time ago. The screen grid voltages are wrong, the voltage on the screens is positive than the supply. I wouldn't put a lot of faith in this spreadsheet, I'd be using it as a rough guide.
Assuming the screen grid has ten percent of the total current, with rail of 290VDC the EL-84's are dissipating 10.2 watts each.
Your amp with a 332VDC rail seems to be dissipating 15.3watts per EL-84 which I'd think is excessive.
Yours Sincerely
Mark Abbott
Mark Abbott