I still have both PC boards available. $10 each or $15 for a pair (Line stage and power supply). $7.20 USPS Priority shipping to lower 48 USA.
Considering that the design is quite old, are all the components still available? Sorry for the noob question.
Using Nelson's BOM from the article, the part numbers have changed due to RHOS, yet they were easy to find using DigiKey online catalog. My power supply is finished and the Line Stage board is complete. I'm now working on the enclosure for the line stage.
@rajesh - the pdf is on the PassDIY website and the components are nothing uncommon. Capacitors, resistors, a few zener diodes and IRF610 and 9610 mosfets.
PassDiy
It's an unfortunate trend in DIY that people forget the circuits of the past and only build the most recent designs while the commercial preamps from 20 years ago still regularly sell for hundreds or thousands of dollars on the used market.
If you get the chance to build this one you will not think it sounds bad. It is class A and designed by Nelson Pass after all. The best part is there are no expensive or difficult to source parts in this one.
PassDiy
It's an unfortunate trend in DIY that people forget the circuits of the past and only build the most recent designs while the commercial preamps from 20 years ago still regularly sell for hundreds or thousands of dollars on the used market.
If you get the chance to build this one you will not think it sounds bad. It is class A and designed by Nelson Pass after all. The best part is there are no expensive or difficult to source parts in this one.
As has been mentioned, the parts are cheap and plentiful. I'll also add that
I find the BZLS article itself to be a particularly good read.
Dennis
I find the BZLS article itself to be a particularly good read.
Dennis
I still have PC boards available, $15 for a Line Stage and Power supply boards. $10 for either a Line Stage or Power supply board. $7.20 for USPS Priority shipping to lower 48 states.
I am sold out of power supply boards, I have 1 (one) Line Stage PC board for $10 plus $7.90 in USPS Priority Mail (USPS raised prices this month).
I received mine this week. Thanks, much. They are very nice boards and shipping was prompt! A bargain at that price.
Hi Elwood -- I'll take that last Line Stage board for $10 + $7.90. PM coming.
Thanks
Phil
Thanks for the heads up.
I heard lot of good words about it. My curiosity made me ask the noob question. Too bad, looks like they're all gone.
I'm using a linear 10K four ganged 24 step pot using Vishay Dale resistors and a Log 5K four ganged pot using Vishay Dale resistors.
I bought a blank 4 ganged pot which I plan on making a linear 5K pot, once again using Vishay Dale resistors. Not looking forward to that project, 96 resistors to solder to a plastic ganged stepped pot. This is why engineers create machines, so that people don't have to do work like this.
I bought a blank 4 ganged pot which I plan on making a linear 5K pot, once again using Vishay Dale resistors. Not looking forward to that project, 96 resistors to solder to a plastic ganged stepped pot. This is why engineers create machines, so that people don't have to do work like this.
Attachments
There is a thread for the Balanced Zen Line Stage preamp in the PASS forum. There are a couple of others who have or are building this line stage. Please join in.