Fortunately the open blade Ami switches were short lived. Give me a Continental to work on any day over a H or I.
I made the safety mod on a Rowe 1100 mechanism, very simple. I can take any pictures or describe it to anyone..No wire cutting or splicing is necessary.
However, I think it's a mod that, luckily, is hardly ever necessary unless you have a problematic mechanism with a real oddball problem that you just can't solve.
Nigel, UK
On 6 Aug 2025 at 18:23, John Robertson via Jukebox-list jukebox-list@lists.netlojix.com wrote:
On 2025-08-06 9:55 a.m., David Breneman via Jukebox-list wrote:
Interesting. I’ve been working on AMIs for, literally, a half century and have never encountered this. It’s probably instructive that when AMI designed the 45 mechanisms they went from micro switches to simple blade switches for the transfer and scan functions. They may have had real world experience that the micro switches were trouble.
And yet the blade CAM switches of the 50s caused innumerable problems (burnt coils, jammed gripper motors) that mircoswitch upgrade kits like the CAM-1 from the UK fix!
I think a safety switch add-on may solve this problem, someone just has to take the time to design it. I'm happy to host the results on my AMI/Rowe page on Flippers, I just don't have the time, nor a machine to test a safety switch at the moment.
John :-#)#
-- John's Jukes Ltd. 7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 Call (604)872-5757 (Pinballs, Jukes, Video Games) flippers.com "Old pinballers never die, they just flip out"
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