Rock on! That's the result you're looking for. 7.8 MHz is definitely not on the list of types I have. We have seen coil forms with two different turn pitches. Never kept a record of which was used in which models. Haven't seen a version six in quite some time. All of them we ever bought got converted to a "3" for the Browning crowd. I'll see if there are any pics on file at work of the type 6. Probably not.
73
73