I'll look this weekend I may have one in the shop. But I agree unless there is specific reason to keep the Zinsco panel you could change to a new 100A panel and have new equipment. I ran into a problem with a Zinsco panel, I got a call from a customer stating that when the wind blew she lost the circuit to her living room. This was the only circuit affected. Went to job and sure enough circuit was dead, circuit breaker was on, I turned off and reset circuit breaker problem went away. I installed another Zinsco breaker just to make sure it wasn't a defective breaker checked circuit and left. Got another call stating that the same thing was occuring . Went back opened cover and circuit came back on. Removed circuit breakers checked buss for burns, looked good, to make a long story short what I found was that the al buss had a dead spot where the breaker made contact. It appeared to be in good shape. I turned off main breaker removed all breakers on buss where problematic breaker was and used ohmmeter one lead at top of buss and went down bus checking for continuity with other lead. When I got to where faulty circuit was no continuity. Changed panel problem went away. I still have old panel and buss looks perfect but still no continuity on one side. May have been able to clean (buss is al)or us nolux on buss but Zinsco equip is obsolete in our area and a new panel would be cheaper than many service calls to install bandaids. As far as the wind causing problem it was just a coincidence.