2010年7月3日 · I am planning on making a INA217 Mic Preamp for my first diy amplifier project. The datasheet has a schematic (pg7) for a circuit with phantom power...

2011年5月29日 · While this is a preamp, it is intended to completely replace my inertace amp and controls so adjustability of the INA217 gain seems important to me. The pans for the pot are …

2020年11月2日 · Next thing is that I want to modify that preamp to add an isolation transformer (I have a 10K:10K transformer). Using my mad photoshop skills I've painted the planned …

2013年11月12日 · Since I normally drag things on for much too long, I'll describe my situation with bullets. Want high-grade PC audio input for microphone, guitar, and guitar amp Cheapest …

2019年6月13日 · Hi, all, I hope this is an appropriate subforum for this. I've put together a mic preamp that utilizes the TI INA217. The power supply kit comes from FiveFish Audio and I've …

2015年7月11日 · Hi!;) First post here, please be nice... I'm making a basic preamp using the INA217 chip (also known as the $5 preamp, which is popular and seems easy for a beginner), …

2010年9月27日 · There are several discussions on the forum about INA217 or the equivalent THAT1512 chips, but I didn't see anyone trying to implement an input trafo. The idea is to …

2017年2月5日 · You can use a 10k gain pot, which would give a gain range of 1.5 to over 600, if in series with the 8R. An output DC blocking cap of 47uF/25VDC NP (or higher) is ok. Then …

2011年5月29日 · I also can't currently fathom what happens if I plug a unbalanced out from the preamp into the balanced input of the interface. The product sheet lists the above max levels …

2014年10月26日 · The INA217 would seem a little bit too weak for obtaining full output level into 600 ohms though, and since output impedance is not precisely known anyway, I would …