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Home / Essays / 2015 / April / TTSH ADSR and AR Done and Tested
April 15, 2015

TTSH ADSR and AR Done and Tested

Next to the VCF section is the ADSR and AR section, which I've finished now, too:

Main Board, ADSR and AR CompletedComponent side, jacks and switch still missing, sliders and button installed for testing.
Main Board, ADSR and AR CompletedBack side, jacks and switch still missing, sliders and button installed for testing.

Powering up again, connecting the according ADSR and AR outputs to my oscilloscope and pushing the button shows the following waveforms (after some fine-tuning of the sliders):

Testing ADSR Signal
Testing AR Signal

This looks pretty good, I think.

Read more in TTSH

TTSH VCA Done TTSH VCOs and VCF Done and Tested
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  • TTSH 21: PSU Reloaded
  • TTSH 20: Midi2CV
  • TTSH 19: Case
  • TTSH 18: Test of Finished Board
  • TTSH 17: Main Board
  • TTSH 16: LED Drivers, Jumpers and Headers
  • TTSH 15: S&H, Internal Clock, Analog Switch and Amplifiers
  • TTSH 14: Mixer, Reverb, Noise and Voltage Processors
  • TTSH 13: Preamp, Envelope Follower and Ring Modulator
  • TTSH 12: VCA
  • TTSH 11: ADSR and AR
  • TTSH 10: VCOs and VCF
  • TTSH 9: All Components Available
  • TTSH 8: Thonk and Balzer Components
  • TTSH 7: Transistor Matching
  • TTSH 6: Soldering
  • TTSH 5: Mouser the 2nd
  • TTSH 4: Mouser Components
  • TTSH 3: Components and PSU
  • TTSH 2: Delivery
  • TTSH 1 - The Story Begins
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