Going off some Inrad, Fox Tango and Yaesu data here:
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I've found filters in 20KHz, 12KHz, 6KHz, 2.4KHz (of various shape factors and pole counts), 1.8KHz, 600Hz, 500Hz and 250Hz bandwidths.
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Were there any more bandwidths offered? 4KHz, 350Hz, etc.?
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The 12KHz ones (Tayima P/N TF30H12) also cross to a YF30H12. I cannot find any of these stateside. Perhaps someone has a couple in their junk box? There's an eBay seller in UK who offers them but doesn't ship to the US - and won't return a message about them. Perhaps someone across the pond can help me snag a few?
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Thanks - 73
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Fred, N8YX
