Had all 4 coils come with a speedster chassis, they all seem to buzz at the same frequency but I am sure they need to be adjusted.
I used them to get my chassis running but will be moving to a distributor.
See the album for all the photos of the coils and box.
Box was re-assembled with a mid range kit.
Coils work on battery and mag without issue.
I am guessing they are refurbed units from Snyder.
If you cannot see either please let me know. Respond here or email barchockATgmailDOTcom
If I get full price I will ship for free to the lower 48. Shipping per request to other locations. If you pick up I will drop $25 and buy you a beer.
Make it $300 including shipping to the lower 48