Hi all,
I am rebuilding an electret microphone in which many years ago I used a replacement capsule for Shure SM94. Now I have built a smd circuit on the solder side of a prototype board, but noise is very higher than in the old circuit. At that time I selected 2N5087 among other types a the best ones. Now I used BC860(smd). Do you think BC860(smd) could produce higher noise than 2N5087? BC560 have the same noise?
Thanks,
Gianluca from Roma, Italy
This is the schematic of my version:
I am rebuilding an electret microphone in which many years ago I used a replacement capsule for Shure SM94. Now I have built a smd circuit on the solder side of a prototype board, but noise is very higher than in the old circuit. At that time I selected 2N5087 among other types a the best ones. Now I used BC860(smd). Do you think BC860(smd) could produce higher noise than 2N5087? BC560 have the same noise?
Thanks,
Gianluca from Roma, Italy
This is the schematic of my version:
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