Premium Only Content

EEVblog #609 - Condenser Microphone Design Tutorial
Part 4 of microphone technology with Doug Ford, former head designer at Rode Microphones.
In this video Doug discusses how to design a condenser microphone, in particular the Rode Classic II microphone.
Many things discussed include:
External polarisation voltage generation and the relationship with sound pressure.
The trade-offs involved in bias voltage vs physical construction and sensitivity.
Diaphragm deformation and its effects.
CMOS oscillator design for high voltage generation.
Zener diode noise in relation to the knee type, and how to reduce it.
Heating and dehumidification advantages of valve based microphones.
Valve based amplifier design, and blending solid state for improved performance.
http://www.rodemic.com/microphones/classic2ltd
All videos in this series are here: https://www.youtube.com/playlist?list=PLvOlSehNtuHv98KUcud260yJBRQngBKiw
Forum: http://www.eevblog.com/forum/blog/eevblog-609-condenser-microphone-design-tutorial/
EEVblog Main Web Site:
http://www.eevblog.com
EEVblog Amazon Store:
http://astore.amazon.com/eevblogstore-20
Donations:
http://www.eevblog.com/donations/
Projects:
http://www.eevblog.com/projects/
Electronics Info Wiki:
http://www.eevblog.com/wiki/
-
45:10
EEVblog Channel
8 months ago $0.18 earnedEEVblog Random LIVE
4416 -
LIVE
BEK TV
20 hours agoTrent Loos in the Morning 6/26/2025
562 watching -
LIVE
The Bubba Army
21 hours agoSOME Charges dropped in Diddy Trial - Bubba the Love Sponge® Show | 6/26/25
3,258 watching -
LIVE
FyrBorne
9 hours ago🔴Warzone M&K Sniping: To Valhalla We Ride
774 watching -
32:35
Ohio State Football and Recruiting at Buckeye Huddle
10 hours agoOhio State Football: Six Key Predictions for the Buckeyes in 2025
47.5K3 -
15:17
GritsGG
14 hours agoTeaming Up w/ Bobby Poff & We Dominate a Hacker Lobby!
6 -
11:22
IsaacButterfield
1 day ago $0.96 earnedWomen Are Under Attack and Australia Doesn’t Care
6.34K14 -
LIVE
IamNibz
10 hours ago $0.04 earnedCS2 Wingman Grind And More FT. Dragoon_B
50 watching -
2:03:53
Side Scrollers Podcast
20 hours agoSave A Fox/Reddit Update, Stop Killing Games ENDS, Liver King ARRESTED lol | Side Scrollers Live
25.1K8 -
3:43
Rena Malik, M.D.
22 hours ago $0.48 earnedA Urologist explains nocturnal emissions (aka wet dreams, nightfall)
2.45K6