8. ESR meter

Status: ?

To measure:

• ESR

Similar projects:

• http://www.qsl.net/ve3lny/esrmeter.html
• http://ludens.cl/Electron/esr/esr.html
• http://members.multimania.co.uk/leeedavison/misc/esr/index.html
• http://kakopa.com/ESR_meter/index.html
• http://members.shaw.ca/swstuff/esrmeter.html

8.1. Schematic

8.2. Board

top view:

wires only:

bottom view mirrored:

8.3. Partlist

part	value	position
C1	1u	(2.35 1.2)
C2	10u	(3.1 0.4)
C3	100n	(3.35 1)
C5	1u	(3.3 1.8)
D1	1n4004	(2.25 1)
D2	1n4004	(2.25 0.9)
D5	BAT85	(2.95 0.6)
IC2	TL072P	(3.05 0.95)
PC		(2.95 0.1)
PD		(1.75 0.1)
R1	100k	(3.05 1.3)
R2	10k	(2.75 1.5)
R3	100k	(3.2 0.2)
R4	10	(2.25 1.5)
R5	47k	(3.25 1.4)
R7	330	(1.85 1.4)
R8	100k	(3.3 1.6)
SV1	CAP	(2.25 1.75)

8.4. 3D view

8.4.1. Front

8.4.2. Right side

8.4.3. Left side

8.4.4. Bottom