Check the listing for details. Speakjet speech synthesizer Diagnostic Tester Boards for Arduino. Condition: New. Listed at 19.75 USD. Be sure to watch my restoration videos on YouTube And check out and subscribe to my store: Scott Savage Techno Scavenger Speakjet speech synthesizer Diagnostic Tester Boards for Arduino Uno Kit: Read carefully before ordering! As Jeff and I get closer to finishing the pin-for-pin drop in replacement for the Votrax Speech Synthesizer chip, we needed tester boards to test them and the other speech chips we are experimenting with - including the Speakjet. (They also help us fund the project.) (subscribe to my store for updates on the Vintage Voice Synth Replacement chips) This Speakjet tester board will run a diagnostics pattern that exercises the functions of the Speakjet chips to make sure that everything is function as needed.Audio out level test.Full test of all 64 phonemes.All control pins tested.Additionally, using the Arduino's USB connection the Speakjet can be controlled by any computer with a USB port. (PC, Mac, etc) The pictured image are the CAD drawings for the board. We should have a limited run of both ready to ship by mid August or so. (Order now and eBay delivery time will be adjusted accordingly) Updates:7/14 - Speakjet circuit board layout complete.7/14 - Waiting for Manufacturer QA Report. 7/18 - QA Complete. Manufacturing started.The board will come with the parts you choose (except the Speakjet chip of course). Your options are: Bare boardKit with parts (Not including the Arduino)Kit with parts (Including the Arduino)Assembled (Not including the Arduino)Assembled (Including the Arduino)Assembled (Including the Arduino AND Speakjet)All options include the open source Arduino software to test Speakjet Chips.AND ... an open source Speakjet control panel for PCs. AND - in case you are needing a small speaker for thisadd one of these to the cart for combined shipping.https://www.ebay.com/itm/275261131809 I have a lot of other Speech Chip Stuff in my store. See pictures for more detail. Photos are of actual item. Not stock photos. I tried to get all the angles, but if I missed something don't hesitate asking for more. 100% money back guarantee if not satisfied for any reason U.S. Seller - Fast shipping. Item will be packaged for shipping with extra care. I offer several shipping options, so be sure to review shipping methods for best price or delivery speed. I sell other interesting items like this, so be sure to check out my complete store: Scott Savage Techno Scavenger