Glad I found your channel via the recent HackaDay article. I recommended this to our ham club Builders Group that I host recently and will now let them know about the fix in case they've bought one. Jumping over now to the fix video and have subscribed! 73 - Dino KL0S
Yes Joost B (sorry I can't reply directly to your comment, blame Google+!), the AD812 uses a pretty standard dual opamp pin out, so there are lots of pin compatible chips that could possibly be used as replacements. I too was eying the THS3092 though, as it seems pretty ideal as a replacement here, and it is much cheaper than the alternatives!
+Bert van Lelieveld Yes, the 8 pin SOIC package. Here is the specific part that I ordered from digikey: www.digikey.com/product-detail/en/texas-instruments/THS3092D/296-18836-5-ND/863669
Excellent video! So can we improve the MHS5200A by replacing the AD812 with a THS3092, for example? It has a much higher slew rate and is 'idealy suited for arbitrary waveform generation' according to the datasheet. It is pin compatible with the AD812. www.ti.com/lit/ds/symlink/ths3092.pdf