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10	Last 7 Days	30% unanswered
18	Last 30 Days	33.3% unanswered
2,102	All Time	14.7% unanswered

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Last 30 Days

11	3	Andy aka 380k23 gold badges317 silver badges658 bronze badges
5	1	Charles B. Cameron 1613 bronze badges
3	1	Antonio51 3,9161 gold badge2 silver badges14 bronze badges
3	1	jp314 12.5k11 silver badges33 bronze badges
3	1	Math Keeps Me Busy 12.5k3 gold badges14 silver badges45 bronze badges
3	1	Verbal Kint 14.1k1 gold badge12 silver badges37 bronze badges
3	4	Tony Stewart EE75 134k3 gold badges51 silver badges175 bronze badges
2	1	zanedema 316 bronze badges
1	1	Bryan 6202 silver badges7 bronze badges
1	1	Graham Nye 2,66010 silver badges17 bronze badges
1	1	Tesla23 1,7441 gold badge2 silver badges6 bronze badges
1	1	Lorenzo Marcantonio 7,2254 silver badges26 bronze badges
1	1	Audioguru 2,1793 silver badges6 bronze badges
1	2	Neil_UK 140k3 gold badges157 silver badges349 bronze badges

All Time

909	398	Andy aka 380k23 gold badges317 silver badges658 bronze badges
303	72	Olin Lathrop 306k36 gold badges416 silver badges885 bronze badges
246	150	LvW 22.5k2 gold badges21 silver badges45 bronze badges
230	24	Russell McMahon♦ 142k17 gold badges199 silver badges365 bronze badges
215	69	The Photon 121k3 gold badges151 silver badges287 bronze badges
175	85	Neil_UK 140k3 gold badges157 silver badges349 bronze badges
174	66	Spehro Pefhany 328k14 gold badges284 silver badges707 bronze badges
169	172	Tony Stewart EE75 134k3 gold badges51 silver badges175 bronze badges
164	51	Dave Tweed 164k16 gold badges221 silver badges378 bronze badges
155	55	user_1818839 65.8k2 gold badges58 silver badges159 bronze badges
143	60	Verbal Kint 14.1k1 gold badge12 silver badges37 bronze badges
135	22	stevenvh 143k21 gold badges445 silver badges659 bronze badges
112	70	a concerned citizen 17.3k1 gold badge16 silver badges36 bronze badges
100	24	jonk 69.1k4 gold badges62 silver badges157 bronze badges
95	7	Phil Frost 55.3k17 gold badges137 silver badges253 bronze badges
91	29	Bimpelrekkie 78.8k2 gold badges88 silver badges180 bronze badges
87	25	TimWescott 35.8k1 gold badge35 silver badges82 bronze badges
83	22	Alfred Centauri 26.1k1 gold badge20 silver badges60 bronze badges
74	77	analogsystemsrf 32.7k2 gold badges15 silver badges46 bronze badges
71	23	Transistor 159k11 gold badges172 silver badges357 bronze badges

Top filter Askers

Last 30 Days

4	1	abulu 1075 bronze badges
2	1	AD23 212 bronze badges
2	1	Jing Hao Siet 212 bronze badges
2	1	Domingo 616 bronze badges
1	1	zanedema 316 bronze badges
1	1	Waya Bryan 111 bronze badge
1	3	KJ7LNW 7982 silver badges11 bronze badges

All Time

109	1	m.Alin 10.4k19 gold badges58 silver badges87 bronze badges
89	2	MathematicalOrchid 1,6092 gold badges16 silver badges23 bronze badges
36	7	Aug 1,5316 gold badges28 silver badges60 bronze badges
32	7	Stephen Collings 17k17 gold badges82 silver badges175 bronze badges
25	2	nibot 1,6101 gold badge14 silver badges23 bronze badges
22	4	snickers 3571 gold badge4 silver badges13 bronze badges
22	1	Seth 3,69913 silver badges21 bronze badges
21	1	Chupacabras 5,1872 gold badges17 silver badges48 bronze badges
21	3	VanGo 1,1071 gold badge12 silver badges26 bronze badges
20	13	Leoc 1,3278 silver badges20 bronze badges
20	1	bnorb 3031 silver badge5 bronze badges
19	1	user1084113 4933 gold badges5 silver badges12 bronze badges
19	1	Kouichi C. Nakamura 3031 gold badge2 silver badges7 bronze badges
17	7	user16307 11.3k48 gold badges157 silver badges289 bronze badges
17	2	dr3patel 1,5603 gold badges21 silver badges31 bronze badges
16	6	Sean87 3,19414 gold badges40 silver badges68 bronze badges
16	6	hkBattousai 13.4k29 gold badges107 silver badges185 bronze badges
16	2	Daniel 3333 silver badges10 bronze badges
16	1	1p2r3k4t 6762 gold badges8 silver badges18 bronze badges
16	1	DragonDude 1735 bronze badges

Only non community-wiki questions and answers are included in these totals (updated daily)

2,102

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filter × 2102
operational-amplifier × 240
low-pass × 239
capacitor × 160
active-filter × 139
analog × 125
circuit-analysis × 116
transfer-function × 114
rf × 111
passive-filter × 106
noise × 94
audio × 92
passive-networks × 87
band-pass × 84
amplifier × 73
signal × 66
adc × 64
inductor × 63
power-supply × 61
frequency × 60
high-pass-filter × 54
digital-filter × 54
signal-processing × 53
circuit-design × 50
pwm × 46

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