For Sale Monte Generoso Mic PreAmp PCB Set

[Samuel Groner]

Hi all,

Years back, I've designed and partially built the transformerless mic preamp "Monte Generoso". For details of the design, please see the according section on my website: www.nanovolt.ch/resources/microphone_preamplifiers/. I've never got around actually finishing the project, and by now I have no use for it anymore as I'm no longer into recording. By selling I hope that the preamp finds good use elsewhere.

The set includes:

• one finished and tested preamp;
• PCBs for another preamp channel and a suitable linear power supply;
• Elma gold-plated 24 position rotary switches;
• gold-plated switches for phantom power and polarity;
• Haufe custom-made power transformer with Mu-metal magnetic shield;
• three OPA627 opamps (you'll need to get a fourth one);
• a few capacitors and a common-mode choke;
• a partially drilled cased with custom front-panel, line voltage selector switch, and power switch;
• printed schematics and overlay prints.

Some pictures:

The assembled channel was fully tested and working when I've built it. Unfortunately, I don't have access to a lab where I could re-test it, but as it has not been used since then I'm not expecting any issues. To build the second channel, you'll need to get an OPA627 and two MAT-02 (or equivalent). All other parts should be easy to source.

I'm estimating an equivalent current value of CHF 900.- (at the current exchange rate, roughly the same number in USD or EUR) for everything together when bought new. Please contact me by e-mail (www.nanovolt.ch/about_me/, no PMs please, thanks) with an offer. Shipping is from Switzerland.

Thanks,
Samuel

 

[Samuel Groner]

Still available--just to make clear: I'm not looking to make a profit from selling this, just glad if it's not collecting dust anymore. So please feel free to contact me with an offer reflecting what it's worth to you.

 

[hop.sing]

I do not need it, but I can attest, that this is a very high end preamplifier. Years ago I did build one and it is still my favorite pre for delicate and quite signals…

 

[Samuel Groner]

Thank you for the praise. Indeed I believe it is a quite nice design and I'm surprised that there's no interest; perhaps I've just been too long away from this board. Again to make sure: Please just offer what it's worth to you.

 

[JMan]

I doubt it's a matter of lack of interest. I imagine there are numerous folks who, like me, would love to pick it up, but just don't have the cash on hand. If I did, or even if I thought I could make you a reasonable offer, I would have already jumped on this. I wish you great luck with the sale!

 

[Samuel Groner]

Perhaps I should be more specific with what I mean by "reasonable": I know I'll sell at a loss; half of the original cost (so CHF 450.-) would be great, but one third (so CHF 300.-) is OK too.

 

[TwentyTrees]

Emailed.

 

[okgb]

I'm having a hard time reaching you!

 

[velo]

Thanks for your website. It is simple but has many good links to D.I.Y. and analog resources.

Did you ever find a buyer?

 

[Samuel Groner]

Sold.

@okgb my apologies but I only saw your reply now as I'm not visiting this forum frequently anymore, and as I didn't get a notification. Did you try sending me an e-mail? I'm not aware that there are any issues with the address on my website.

@velo thanks, glad the website is of use.