LPF 100W Chebyshev 7th Order

Ongoing

STD LPF 100W Chebyshev 7th Order

License: Public Domain

Mode:

Editors' pick

Cloned from FT8QRP LPF

Update time： 2022-03-28 21:00:20

Creation time： 2021-12-26 08:59:02

Description

HF LPF up to 100w

The switching is triggered with an ULN2804

Design Drawing

schematic diagram

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PCB

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BOM

ID	Name	Designator	Footprint	Quantity
1	SMA-KE901	ANT,RX,TX	SMA-TH_SMA-KE901	3
2	470PF	C1,C3,C4,C9,C11,C12,C17,C19,C20,C25,C27,C28,C33,C35,C36	RAD-0.2	15
3	130PF	C2,C10,C18,C26,C34	RAD-0.2	5
4	0.1uf	C5,C6,C7,C8,C13,C14,C15,C16,C21,C22,C23,C24,C29,C30,C31,C32,C37,C38,C39,C40,C42,C43	RAD-0.2	22
5	100nF	C41,C44,C45,C46,C47,C48	CAP-TH_L6.5-W4.0-P5.00-D1.0	6
6	1N5711	D1,D2,D3,D4	DO07	4
7	KH-2.54PH180-1X9P-L11.5	H1	HDR-TH_9P-P2.54-V-M	1
8	SRS-12VDC-SL	K1,K2,K3,K4,K5,K6,K7,K8,K9,K10,K11	RELAY-TH_SRS-12VDC-SL	11
9	100K	R1,R4	VARIABLE RESISTOR	2
10	47	R2,R3	5W RESISTOR	2
11	T37-2-COIL	U1,U2,U3,U5,U6,U7,U8,U9,U10,U11,U12,U13,U14,U15,U16	T37-2-COIL	15
12	ULN2804	U4	DIP-18_L23.0-W6.5-P2.54-LS7.6-BL	1
13	Forward	U17	2_PIN_2.54MM_CONNECTOR	1
14	RF_BRIDGE_FERRITE_COIL	U18	RF_BRIDGE_FERRITE_COIL	1
15	Reflected	U19	2_PIN_2.54MM_CONNECTOR	1