I am e no idea lol I don't iv been trying to find them but I have been unable to do so.Is it a worn out sand resistor? Do you have the schematic that may give you a clue if you work out what it's connected to.
Welcome to the forum btw and nice project, 50/50 must be rare
No I think I can make out a 13 but that's about it. Thanks for the help though.Can you read the value on the resistor? https://www.marcospecialties.com/control/keywordsearch?SEARCH_STRING=resistors Marco is always a good place to identify stuff.
Shipping is from the US so it can get a bit costly. If you can identify you can probably source it from the UK.
Oh ok thank you that really helps as the relay is labelled P1 tilt it also look like there is a hold label underneath the relay as you can see in the pics.I'm not 100% from the single photo that it is the sand resistor, on my similar era Bally it broke down to a single wire with evidence of the sand/cement block remaining at each end, more photos from different angles including what it's connected to would help. They were used on several machines wired in series to the Tilt (or sometimes labelled Hold) Relay, something like 15 Ohm / 5W easily available from ebay etc. Which Relay is it wired to?
As mentioned in my first post, do you have the schematic? the resistor would appear similar to the snippet below, if not search the schematic down (e.g. http://www.pbresource.com/mansch.htmlyou'll) you'll need it over time believe me
If this guesswork is correct then it's part of the tilt circuit which is basic on these games you could live without it in the meantime.
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