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After testing some more, I have found that there is a minimum in the hum very close to the PT and choke. I only have to raise the OT ~10mm and...
I was hoping I could use the new plate curves in the unbypassed case, just as we do the normal plate curves in the bypassed case.
It is a learning experience. I can recreate the lines, so I'm now ready to use existing tools.
I know spice exists. I have it installed and have...
I've made a wooden dummy chassis and mounted some hardware. Good I did that as I had some mistakes in the drawings.
I performed the headphone...
I thought you were high on something, but I found out today that the image is from the 1945 book :D
I don't get why you...
Not complete wrong, not completely right:
It seems that the 'standard' grid curves are already different.
@Ten Over Where did you get...
Too many little projects going on.
Not given up, yet.
Actually, the plate resistors are mismatched to counteract the gain difference of the two sides of an LTP.
Source: Blencowe, Section 9.9, p162
Taken from https://www.aikenamps.com/index.php/technical-q-a
I was just about to brag I did this so that didn't happen. Then this made itself abundantly clear:
Only two of the standoff screws fit...
After quite some dry swimming in DIYLC and Inkscape, I made a mock up where I´ve mounted some parts to check whether there was some oversight....
You could install a permanent bleeder resistor (with a larger resistance). That way you can't forget to drain the caps.
That link does not work.
Let's agree to disagree. I don't think we help @screefer anymore.
From your own link:
Btw, did you check the wire direction?