FYI, I've sold some of my excess 15-Amp slo blo fuses this week -- for flap curcuit on some C-150s (cessna part number S1627-15). These are rare, but required in certain model Cessnas. Several NTSB accident reports mention flap malfunction or failure at critical times in flight possibly due to improper flap circuit fuse installed.
I still have six extra of these fuses left. $8 each (sorry, but that's what I paid.) Contact me at:
wtmalerep@charter.net if interested.
While I am on the subject of fuses -- I noticed that Cessna 150s use the AGS type, not the AGC type that you can buy cheap at any Auto parts store.
The AGS type are very slighty fatter (maybe 1/32 inch), and therefore if you use an automotive AGC type, it fits loosely in the fuse holder -- just loose enough that it can cause problems. I had several instances of lights, mechanical clock, etc., not working, or working sporadically, and I believe it was the result of bad contact of the fuse because of the wrong type installed (AGC instead of AGS).
That's why I made it a point of purchasing (at considerable cost) from cessnaparts.com, all of the right sizes and amperages for each fuseholder my plane - plus ample spares -- as is required by regulation.
And, because cessnaparts.com requires minimum quantity purchase on some items (and then they shipped me a few too many of the 15A slo blo), I have extras to sell.
If your plane uses AGS 15A slo blo for the flaps, and you are using AGC 15 Amp non-slo blo (like I was), I strongly suggest that you consider obtaining a few of the right kind -- one installed in the fuse holder, and at least one as a spare.