Project-build 10" concentric for detector

[Joseph Norrell]

Hi,
I would like to build a 10" concentric coil for a 1260x since there are none available. Any help would be appreciated greatly! Attached is a drawing with the stock 8" coil specs. I need to figure no. of turns for both coils, resistance, capacitance etc.

[kt315]

is it '1200 typo' coil? in RU zine I see a data on 1270 coil... will be this info useful for you?

[kt315]

it looks some pause is needed... OK.

[kt315]

The pause is abnormal.