Honestly, there really isn't much hum with cables routed as 6L6 did. Turning the knob full clockwise with an open source selected and I can't hardly hear a thing through 89dB speakers. It's a tempest in a teapot imo. Don't kill yourself if you can't find a shaft-type solution that's easy for you.
Hi, I am wondering if anyone else sees this behavior with their multimeter. I use a Klein Tool MM 700. Today I was adjusting the DC offset of my balanced Iron Pre build. When adjusting all four pins, whenever I get to 0.6 mV and make a further adjustment, my meter goes to 0.0 mV. I can never seem to get anything more precise than 0.6 mV. It always jumps to zero. I am assuming that this is a function of my multimeter, and that the Iron Pre doesn't magically have perfect offset once you get below 0.6 mV.
Does anyone have a recommendation for a not too expensive multimeter that does not exhibit the same behavior?
Does anyone have a recommendation for a not too expensive multimeter that does not exhibit the same behavior?
Don't kill yourself if you can't find a shaft-type solution that's easy for you.
small L bracket drilled with stepped drill, 6mm Dia bar or M6 threaded bar - both from hardware store; cut with angle grinder or hand saw or nail cutter

if there is no 6mm couple element, one can connect extending shaft with pot shaft with piece of petrol/rubber hose of 5mm ID
as proper 6mm guide for front hole - one can use disassembled front of bad pot
not exhibit the same behavior?
I believe in autorange function, while measuring mV only if there is rotary switch position for mV
as you have just V position, try manually changing range (press button), as 6L6 said
Have you tried taking the meter off Auto and using the Range button to set the smallest V range? That might do the trick...
I believe in autorange function, while measuring mV only if there is rotary switch position for mV
as you have just V position, try manually changing range (press button), as 6L6 said
Thanks, Good idea, but even when setting the range manually, it jumps from 0.6 to 0.0. Oh well, I guess its a fluke of the Klein (sorry).
Maybe this is normal, but when I hooked up a led to the power pads like 6l6 did and then measured voltage between ground and v+ I get 3.5 volts. If I remove the led it will then read 15?
Hi DirkGood morning IPA- builders,
my backplate arrived yesterday. Made a little nightshift. The story continues slowly, but constant....
Cheers
Dirk 🙄
Nice build.
Which kind of connector do you use for the DC-power?
Good morning IPA- builders,
my backplate arrived yesterday. Made a little nightshift. The story continues slowly, but constant....
Cheers
Dirk 🙄
Maybe this is normal, but when I hooked up a led to the power pads like 6l6 did and then measured voltage between ground and v+ I get 3.5 volts. If I remove the led it will then read 15?
you're obviously making short somehow, instead of connecting LED
Hi Dirk
Nice build.
Which kind of connector do you use for the DC-power?
obviously Neutrik 4 pin, male, chassis mount
https://www.neutrik.com/en/neutrik/products/xlr-connectors/xlr-chassis-connectors
Good morning IPA- builders,
......🙄
I think I already said Fugly!
anyway 🙂
obviously Neutrik 4 pin, male, chassis mount
https://www.neutrik.com/en/neutrik/products/xlr-connectors/xlr-chassis-connectors
Yes, Neutrik was also my guess but I could not find the exact "version"......a 4-pin XLR type?
Hello Meper,
it is a Neutrik XLR 4-pin.
NEUTRIk NC4 MD-LX-B, 4-pole XLR male (input AC at preamp).
Cheers
Dirk 😉
it is a Neutrik XLR 4-pin.
NEUTRIk NC4 MD-LX-B, 4-pole XLR male (input AC at preamp).
Cheers
Dirk 😉
Thank you I found it!
They make up to 7-pin types......
https://www.neutrik.com/en/neutrik/products/xlr-connectors/xlr-chassis-connectors/dl-series
And yes everything is at PCB......just need the AC from transformer and the current is not so high.
They make up to 7-pin types......
https://www.neutrik.com/en/neutrik/products/xlr-connectors/xlr-chassis-connectors/dl-series
And yes everything is at PCB......just need the AC from transformer and the current is not so high.
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