ESD FAQ: “Is it Okay To Plug Yourself Directly Into the Ground of an Outlet?”

Read this first! Despite the fact I am a Senior in Computer Engineering (which carries a lot of Electrical Engineering with it), all information provided here is only for hobbyist purposes and Hallman Labs is not liable for your mistakes. There are potentially LETHAL voltages at play, should you connect to something other than the […]

Potomac AA-51 Audio Analyzer – Calibration Procedure, Service Manual, Ref Images — Early Version of Upcoming Page (Work in Progress)

I decided to go ahead and publish what I had ready in a blog post until it is ready for its own page. The AA-51 is what is holding me up on publishing my findings in the BlackGate™ Article! Some of the requirements for calibration aren’t easy and I’m having issues with getting the unit […]

XMOS : BlackGate vs. SILMIC ARS “Super Gold” Capacitors (& Others) Direct Comparison (testing in progress) – Photos and a Preview

I was able to acquire another USB XMOS FUN01 modules (SU-1 Clone), with the exact same HW as my BlackGate™ module (aside from a few little changes). From the various XMOS and Amanero modules I’ve tried, the “FUN01” is my go to version for under $200 with CAT6 and AES/EBU outputs. This price does not […]

Preview of Hardware Reviews in Progress with sAp-10 – Balanced Headphone Amp under $200 (also the Burson Play DAC/Amp)

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 […]

“Help”: My Cornell Dubilier BF-50 Is Testing Open Circuit as Good | Note : Treble Bleeds Halted

I was using my Cornell Dubilier BF-50 (vintage) capacitor analyzer with all of the right things showing on the “Magic Eye” 6E5 (Philips JAN (Mil-Spec)) electron tube’s eye for leakage, short, and open tests. By the way, the BF-50 uses a 12A7 (Tungsol) electron tube for both rectification of the AC input and amplification. Both […]