33 & 405 replacement fuses

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14-Sep-2019 01:16 PM

hypoman

hypoman

Posts: 5

This may seem elementary, but I just blew the original fuse in my 33 preamp and need to get the correct replacement.  I'm powering it on 110 VAC here in the USA.  I would also like to get spares for my 405 amp.  I know the physical size is 5x20mm, but need to know the correct value and type (slo-blo or something else?) for each.
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16-Sep-2019 06:59 AM

EJP

EJP

Posts: 1648

Correct 110V value for 33 is 2.5A, 405 is 5A, both slow-blow. The 2.5A rating for the 33 is mainly for slave-powered devices, as the 33 itself only draws milliamps.
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16-Sep-2019 12:12 PM

hypoman

hypoman

Posts: 5

Very helpful.  Thanks very much.
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