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Linear Mode
Chinese frequency counter module
JaseSerre
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Joined: Jan 2017
City: Phoenix,Arizona,USA
#11

02-09-2017, 10:50 AM
Hi..i am a new user here. As per my knowledge the counter has a MOSFET front end and a pair of back to back protection diodes from input to ground, so if the signal is more than 0.7 v peak the diodes will conduct and load the measured circuit. Better to add a series resistor to reduce signal if it is at high level as in a tube osc circuit.

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(This post was last modified: 04-21-2017, 02:56 PM by JaseSerre.)
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Messages In This Thread
Chinese frequency counter module - by Mondial - 12-01-2016, 04:42 PM
RE: Chinese frequency counter module - by Mondial - 12-01-2016, 09:09 PM
RE: Chinese frequency counter module - by Mondial - 12-02-2016, 08:27 AM
RE: Chinese frequency counter module - by Mondial - 12-20-2016, 08:38 PM
RE: Chinese frequency counter module - by JaseSerre - 02-09-2017, 10:50 AM
RE: Chinese frequency counter module - by Mondial - 02-09-2017, 03:40 PM
RE: Chinese frequency counter module - by Arran - 04-02-2017, 03:17 AM
RE: Chinese frequency counter module - by Mondial - 04-12-2017, 12:01 PM
RE: Chinese frequency counter module - by morzh - 11-30-2017, 02:54 PM
RE: Chinese frequency counter module - by govee - 01-25-2021, 03:03 PM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Test Equipment