Revival !

I'm glad to announce that the website hosted under the name "" since 1999, which I had to shutdown a few years ago, will slowly come back to life here.

The structure of the website will be simple : each equipment will have its own blog entry, pages will be used for categories.

Please do not hesitate to leave comments!

The IMF Electronics (loudspeakers) website which used to be hosted under is at, check it out please !

You can contact me through this form.

Paris, France, May 2014.

Tuesday, May 7, 2013

JC-1 | Cartridge Preamplifier | 1976 - 1977

The JC-1 came in two versions, the -DC, battery powered and the -AC version, with an external power supply.
It seems that some models use modules (eg. black boxes) some don't.

It was (of course) was designed by John Curl.

This page is for the JC1, you can also have alook at the following pages:

  • the JC1-DC
  • and the JC1-AC


  1. Hello,
    I have a JC-1AC that is not working. The power supply seems to be fine. My only and limited experience tells me that the center plug-in module may be the problem. Two questions, are you a source for a part? Second, is there anyone (you) out there that would be willing to attempt a repair? OR, do I scrape it and hope I find something to replace it? Please advise and thank you in advance for any and all help and information.
    Your fretted friend,
    Michael Ferrucci
    (Former Co-Founder and General Mgr. of "The LAST FACTORY"

    1. Michael,
      Did you receive any replies? I also have a JC-1DC that needs repair (S/N 00074).
      Bob Meyer
      Tampa, Fl