Update 7/15/18: I just stumbled across by far the most detailed document I have ever seen on Black Gates™ and it is by Jelmax (the creators of the technology)! See the 107 page PDF here: Blackgate_Tech_Note_Compilation. Cable used between the FUN01’s Coax output and the Siglent SDS 1202X-E : […]
Update 6/2/18: I completed the discrete op-amp modification after I got the replacement diodes. You need to replace Diodes 11, 12, 13, & 14 with 16V Zener diodes. If you fail to do this, your op-amps will be getting +18 and -18V (36V total). This is a pretty high voltage to use on op-amps, these […]
Update – May 15, 2018: I have almost finished restoring the bottom of the unit (where most of the components are) and expect to have it working in the next week or less! Update – May 12, 2018: Here is the Schematic with the parts labeled, this way you can easily see where you are […]
This single loose solder ball (could have fallen inside the enclosure at any point) might explain all the problems I had with getting the DAC to lock on to any audio signal. It would be a great job if it wraps up the issues. Stay tuned to find out if I was right! […]
Once again the values needed for the power to the DAC have changed, waiting yet again on the correct transformer.
I wanted to give anyone still putting up with my unusually long delays between reviews a sneak peak of what is coming soon! I have everything ready to go for my new level of analytical audio reviews except for the matching transformers needed. Instruments include Potomac AA-51 audio analyzer DDS 25Mhz Signal Generator Fully Functional […]
Here is my first try at a meaningful picture collage to give viewers some update on my progress. However, my work has passed the points shown here now, but you can’t always build and be a photographer. Some are lost due to difficulty or annoyance/burns from irons telling the photographer in you to hush and […]
Project MXercury-Lindberg 50SE/160VA: At this point I can’t comment on the functionality/performance of the NobSound™ MX50 SE kit, but I wanted to make sure to post a few pictures that are better and more up to date (w/ parts in the kit) than the sale images on most sites. I am waiting on my Avel […]
Right now this is a place holder until I finish up eHW3. eHW2 was to build a 4-bit full adder w/ half of the adder only using a double 4-to-1 MUX IC (74ls153) with the other half being an assortment of ICs to create a traditional 2 bit full adder.
While working on my digital logic project I ended up accidentally creating my own little debugging circuit, although when it comes down to it this is just a truth table/multiple voltage probes.