[Lowfer] Preamp question

[Mitch Powell]

Jay:
Preamp working (with 3866) very nicely. Approx 30 dB gain
and working with Vcc = 12V.
Question about the toroid....
I have wound 15-0-15   for the 30t bifilar.  Is that correct.

Or should I read that as 30-0-30  ???

Raining overnight and morning so all testing has been with the
preamp inside house..... coming from the
series tuned / toroid coupled 100 ft triangle.
Obvious and definite peak around 185.3 where the loop is tuned ! !
I will be making changes this weekend to make open-top and shielded
loop - for totally untuned operation.

Mitch