Question about the frequency of the American S2 TR Discriminator

[Digger]

I bought 2 vintage Garretts today a Master Hunter ADS 4 and a American S2 Tr Discriminator. I'm trying to find out what frequency the American S2 is. I'm sure the Master Hunter ADS 4 is like 7.5 KHZ but not sure on the other. What I've found says it is 50 KHZ. Anyone know for sure?

Thanks

 

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