Continuing our Mic Preamp Design Adventure… see past articles: Part 5: Designing the Printed Circuit Board Part 4: Amplifying mic level input signal Part 3: Distortion & Harmonics. Solid-State vs. Vacuum Tubes Part 2: Impedances & Loading – Adventures in building a Tube based Mic …
We’ve reached the point where our Hybrid Vacuum-tube mic preamp prototype works, and now we need to put everything together in an easy-to-assemble package, in other words a complete kit. So it’s time to design the Printed Circuit Board. Continuing our Mic Preamp Design Adventure… see past articles: Continue reading
Yay! NK-72DI Mic Preamp kits are now shipping. I’m still slowly ramping up, but this is a milestone. I’m happy. Also, the assembly guide PDF is also finished and will be available on the website for download. 
I still need to update …
A customer’s build and comment regarding our SK-1DI Mic Preamp. http://fivefishaudio.com/500serieskits/sk1di/
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Gold-plated fingers on your 500 series FiveFish preamps, to go with your bling! I used gold-plating in connectors like these PCB pad fingers not just for show but because gold-coated contacts are highly reliable, and corrosion resistant. These contacts should last for many decades and look just as good from …
Found this photo in facebook, of a vintage SC-1mk500… 2009/2010 era! Thanks to Fred! // Found a way to embed facebook posts in a blog, so this is the first posting!
So let’s say you want to own some 500-series lunchbox modules, could be a mic preamp, compressor, or equalizer unit. The problem is you don’t own a lunchbox rack. Even a blank 6-space rack can cost a pretty penny, and you still end up with no modules after purchasing the …
Our front panels are anodized aluminum, with engraved labels. The stock SK-1DI mic preamp kit comes According to Wikipedia, Anodizing is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts. The process is called anodizing because the part to …
On an earlier post, I mentioned I was working on a new preamp kit. (See here) On that post, I temporarily used a vintage St. Ives Input Transformer for my prototype since I ran out of my Carnhill Input transformers. Now, I’m going to replace that St. Ives …
CircuitLab.com is a cool web-based “workbench” where you can create circuits and simulate it. You can do DC analysis, Time Domain, Frequency Domain analysis. I think it’s a great learning tool to “experiment” with circuits and see what will happen. No special software need to be installed, you can run …
