A look at the design process for the upcoming HL THD Tester for capacitors. I will be using SPDT or SPST switches to allow a variety of capacitances. Resolution depends on quality of reference arm, but measuring down -160dB, is easily achieved.
A preview into the new Hallman Labs curve tracer. A review will be done at some point.
ESD FAQ and common misconceptions about electrostatic discharges.
A look at the Potomac AA-51 Audio Analyzer: schematic, calibration procedures, service manual and more inside. Produced in the 1980’s, the AA-51 is still of great use.
Preview into the head-to-head between Black Gate and SILMIC ARS Super Gold. XMOS module based on the SU-1 is being used. This is still a WIP.
Just a reminder to anyone who has yet to sign up for the first Hallman Labs (review equipment) giveaway, the entry period ends at 12AM PST. You can find all the details in this post. All that is required to enter is to follow this website (from the main page, button on the right side […]
Don’t see this very often, even in classes they didn’t have one of these that had cracked the wax. First two pictures are with a 50mm lens. I noticed the wax had broken in a circle around the end and if I could pull the end right off, the solder was already broken and […]
Finally got a balanced (XLR in) headphone amp. 2.8 MHz is native DSD64 converted by DOP (DSD over PCM). This is a picture from my phone, but I wanted to get something for readers to see on the reviews in progress between this combo and the Burson Play DAC/Amp combo. I plan to focus more […]
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 […]
After weeks/months of trying to get my Cornell Dubilier BF-50 cap analyzer to show what is expected for a good cap vs. a known bad cap, I reached out to Cornell Dubilier. Well Cornell Dubilier didn’t have any more information to offer me besides what I already knew from the BF-50 owner’s and service manuals. […]