HF-AF-VOX - ED 33 module

$34.10 *

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  • EFD1000056
HF- AF- VOX  -  as module Fields of application : With the help of the... more
Product information "HF-AF-VOX - ED 33 module"

HF- AF- VOX  -  as module

Fields of application:

With the help of the accompanying circuit proposal, the following additional possibilities are available:

  1. Monitoring the operating voltage
  2. Closed circuit for safety measures
  3. Control by light using a LDR


For insensitive microphones or too small AF sources using a low-frequency amplifier like the ED 14 is very helpful.

"Contact"opens = relay armature switches (relay coil is de-energized)

"LDR": dark = relay armature picks
            bright = relay armature drops.

With the trimmer the sensitivity is set.

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