TSFA 25 1019 / Cheesy Fan #3 : Achieving Very Low SRF (Self Resonant Frequency).
Channel: RWGresearch
Date: 30/01/2019

As we start to look at the properties of this contraption... here is part 3... In this video we start looking at how we have lowered the SFR (Self Resonant Frequency) of the coil quite a lot just by changing the interconnections. However we also changed the Q of the coil dramatically. we are introducing a lot of impedance by adding greater difference in potential between the winding's. 

Other Parts of this series: https://www.youtube.com/playlist?list=PLsiIKXpZfLKIjxEfuRA5U1vi0dDeKHCiu

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God Bless, 

~Russ Gries

My Equipment:

for recording:

Gopro Hero 4 silver ( borrowed :) ) :
https://www.bhphotovideo.com/c/product/1078007-REG/gopro_chdhy_401_hero4_silver_edition_adventure.html

Panasonic HC-VX981K:
https://www.bhphotovideo.com/c/product/1211806-REG/panasonic_hc_vx981k_4k_camcorder.html
  
With VW-W4907 0.75X Wide Angle lens:
https://www.bhphotovideo.com/c/product/851713-REG/Panasonic_VW_W4907H_0_75x_Wide_Angle_Lens.html

Auido:

motovlog mic: 
http://www.ebay.com/itm/201664541385
MicroMemo/XtremeMac/Voice-Audio Recorder for I-Pod Nano 2nd Generation - I just use the mic part...

Nikon ME-W1 Bluetooth:
https://www.bhphotovideo.com/c/product/1127273-REG/nikon_27159_me_w1_wireless_microphone.html

Azden SGM-990:
https://www.bhphotovideo.com/c/product/1048789-REG/azden_sgm_990_i_sgm_990_i_supercardiod_omni_shotgun_mic.html

for editing: 

TRNDlabs VENTURA Wireless Headphones:
https://www.trndlabs.com/product/ventura-wireless-headphones/

Asus GL551JM-DH71:
https://www.bhphotovideo.com/c/product/1083624-REG/asus_gl551jm_dh71_i7_4710hq_2_5g_16gb_1tb_windows8_1_15_6_black.html