HD-1418 Active Audio Filter Mods

[Chet Sprinkle]

I have heard that there are mods for the HD-1418 Active Audio Filter that greatly improve it. 

If anyone knows the details of them I would appreciate receiving them...

Thank You, 

Chet Sprinkle - K8YTO

Listserver Subscription:listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'"
Listserver Submissions: heath at listserv.tempe.gov
Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"