Collins 356A-1 Tube Mic Preamplifier preamp microphone

Description

For sale is a single preamp from a Collins 212-G console. Unit is untested. Sold with (1) Phillips and (1) General Electric 5879 tube which I tested on my B&K. Tubes may vary in strength but none tested bad. I have no way of testing these, I wish I did. Sold as is for parts or repair only. No returns. All tube units like this should be tested and serviced before use. Schematic is easy to find online. This could be perfectly working with new caps but I don’t know so that’s why marked as for parts or repair only. Will ship with great care. Thanks!