I have a Ten Tec model 207 ammeter. I got it for a Triton that I had and it worked just fine. It was a nice addition. It was designed for the 251, 252, 261, and 262 power supplies but could be used on others. Pictures available upon request. I'm asking $75.00 shipped to lower 48 states. I will accept Paypal. Thanks for looking, Ralph Howes W8BVH (good in QRZ)