IGS Audio T4Bx Photocell

Photocell nearly identical to the original TELETRONIX design
IGS Audio T4Bx Photocell
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Special Order
Due to the special nature of this item, we order each unit fresh from the factory, exclusively for you! Lead times may vary so please chat, call or email for up-to-date inventory status.

It is widely known that the LA-2A unique character is a result of the applied IGS Audio T4Bx Photocell. In the original TELETRONIX design a electroluminescent panel provided a light source for the photo resistors. This component was very variable in parameters, and this affected the result compression and stereo image of the audio. IGS Audio developed a new photocell parallel to the T4BX. By precisely selecting, testing and matching subcomponents used in the assembly of this photocell IGS has created a product line consisting of nearly identical devices in parameters and sound.


  • Attack: 10 ms
  • Release: 60 ms for 50% release
  • Fequency response: 20Hz - 20kHz
  • Used for: IGS One Leveling Amplifier, IGS One LA500, Teletronix LA2A, LA3A

Additional Information

Condition New

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