Yah, my reasoning for the soldering of possible mistakes is as much about how much I trust myself as anything else. It is especially hard when I have made the same mistake twice in a row! I doubt many people do that, really. So when woodworking or electronics, or even driving in a city that I am nor familiar with, extra caution just has to be used. Sometimes what I learn is that I am not the guy you want in the drivers seat. With experience of course, it gets better (usually).
All in all, I keep ordering kits from DIY Audio for very good reasons.
All in all, I keep ordering kits from DIY Audio for very good reasons.
kits from DIY Audio
well, some of them are better, some of them are worse ........ and some of them are ZM's

Hello Zen Mod,
I received a Iron Pre from the store. I bought it so I could build and measure it and all that just for fun.
Is there a white paper that tells what a Iron Pre is and what it does? What it does and how it does it?
You know something that puts the information from thousands of posts all in one place.
I will provide APx555 measurements.
Thanks DT
I received a Iron Pre from the store. I bought it so I could build and measure it and all that just for fun.
Is there a white paper that tells what a Iron Pre is and what it does? What it does and how it does it?
You know something that puts the information from thousands of posts all in one place.
I will provide APx555 measurements.
Thanks DT
I will provide APx555 measurements.
If you're able to provide these, you're more than enough able to comprehend everything from first few posts of this very thread, same as (there) linked one, where it first started

in short, Iron Pre is ( as always) Unnecessary Complicated ZM's Iteration of Papa's B1T
Heheheheheh, got the stuff in today. NICE! Great quality board. Well silk screened man. I am so tempted to dive in but other things must be done before I go all ape Sh over this unit. Love that the Cinemag's only fit one way. Dodged a bullet there, I guarantee.
Hear hear!Yah, my reasoning for the soldering of possible mistakes is as much about how much I trust myself as anything else. It is especially hard when I have made the same mistake twice in a row! I doubt many people do that, really. So when woodworking or electronics, or even driving in a city that I am nor familiar with, extra caution just has to be used. Sometimes what I learn is that I am not the guy you want in the drivers seat. With experience of course, it gets better (usually).
All in all, I keep ordering kits from DIY Audio for very good reasons.
Hello IPA-builders,
another step forward: finished my external - transformer-case today. Did some measurements - especially how low-ohmic is my earthground-connection between AC-powerplug and the preamp (below 0,6 Ohm).
Still some metal-work left. Cage for the cinemags....
Cheers
Dirk
another step forward: finished my external - transformer-case today. Did some measurements - especially how low-ohmic is my earthground-connection between AC-powerplug and the preamp (below 0,6 Ohm).
Still some metal-work left. Cage for the cinemags....
Cheers
Dirk
Attachments
Hello IPA-builders,
I like overkill
though, that front additional plate is totally redundant
there is nothing it can shield from, even if made of Fe
Very tidy as always Dirk👌Hello IPA-builders,
another step forward: finished my external - transformer-case today. Did some measurements - especially how low-ohmic is my earthground-connection between AC-powerplug and the preamp (below 0,6 Ohm).
Still some metal-work left. Cage for the cinemags....
Cheers
Dirk![]()
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