For those who have Henry & Collins amps, you occassionally need Bussman Fuses. When you can find them, the prices run to $15. Browsing eBay, I cam across discountfuse.com in Moorpark, California and they're selling the fuses for $1.50 each. They also have 3/4 and 2 amp varieties. I ordered 30 a lifetimes worth. They've got lots more. Craig AE6AF