[ICOM] Heil HMP Help or advice needed

[K4QT]

I have a Heil HMP-M (modular) in-line pre-amp for use with Icom microphones
but I really need the original (8-pin) version. I would like to trade if
anyone has a HMP version available. Otherwise, I'm looking for wiring info
comparing the two so that I may purchase an adapter or re-wire what I have
to the original, non-modular version. I'm open for suggestions. Thanks. Dave
- K4QT.