Yep, good op amps. I did use them in I/V stage of my reserve AD1853 DAC.OPA1656 (dual) and OPA1655 (single), 2.9nV / sqrt(Hz) noise and 0.000029% THD, 24V/usec slew rate, and 100mA capable.
Hello .. yep I know thatAlways start to populate pcb from smaller/lower components (resistors, IC) to bigger (electrolytic capacitor, radiators, etc.)
But for me building electronic circuits since the age of 15 I am confident to make how I like in my workshop and what ever takes my fancy on the day etc
But do agree this is the best advice and best practice
But in my work shop I have no rules .. except good practice for safety etc
and SMD is banned or kept at a minimum if I can help it
all the best
and the B184B and 2 power transistors with heatsinks fully mounted (all matched) just waiting for some more components to arrive from RS and Rapid .. plus mouser etc
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I still have my original Chiara headphone amp /preamp. I built mine when the kit was first published. I used original PCB from JLH kit. The 2 cases on the top shelf are JLH Chiara Headphone / preamp and power supply installed in my DIY cases.. The two items below it are a pair of ESP Audio P3A power amp mono blocks again in my DIY cases. I am a retired Electrical technician I used to work at a very large Pharmaceutical site in UK. All the enclosure heatsinks were made using materials from scrap Motor Drive VSD cabinets the rest of the aluminium came from scrap production machinary.
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Hello penn07
Many thanks for posting .. great post this is exactly how I make my amps, always trying to reuse big heatsinks from old equipment
I love the Chiara its a great headphone amplifier that is why I invested lots of man hours to reproduce the pcbs's etc with new gerber files
would love some internal pics if possible
all the best
Many thanks for posting .. great post this is exactly how I make my amps, always trying to reuse big heatsinks from old equipment
I love the Chiara its a great headphone amplifier that is why I invested lots of man hours to reproduce the pcbs's etc with new gerber files
would love some internal pics if possible
all the best
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