1950's Ampex 601 Tube Mic Preamp Great condition From the seller: "Ampex 601 in great condition, dated 1957. This has the original suitcase… | Instagram
The Map Room Recording Studio - Ampex 600 tube preamp! I added Jensen input and output transformers. Warm, rich tube goodness. #vintagegear #tubepreamp | Facebook
![Ribbon Microphones, Mini Guitar Amps, Tascam 4 track Cassette Tape Recorders. Present.: Ampex 601 Schematic and Mic preamp Conversion Ribbon Microphones, Mini Guitar Amps, Tascam 4 track Cassette Tape Recorders. Present.: Ampex 601 Schematic and Mic preamp Conversion](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijw9twn6JIs1hqd6aKk-wOPiWjZnzY7WS32UDrMjlPJDwdO6-Kr52j6loq7zAuNWVoS3aNVE7ET2mvaID9mfUHzVqzyqCl7vacYlxMqkfjs8OqoxqowlXQwfQxjJLuPa-yZrqDxq1J6_Y/s1600/ampex+601+Reel+to+Reel+Tape+recorder+Mic+preamp.jpg)