Original poster: "Daniel Costantino" <rocketry1991@xxxxxxxxx> Thanks a lot I really needed that On 1/26/07, Tesla list <<mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx> wrote: Original poster: Ed Phillips <<mailto:evp@xxxxxxxxxxx>evp@xxxxxxxxxxx> Just looked at his circuit and suggest changing 0.01 ufd timing capacitor to 0.1 ufd and using 1 meg pot instead of the 10 meg. Should work fine. Ed