Radio Shack Boston Monobloc (fuse question)
Okay I'm in the process of fixing my brothers Radio Shack Monobloc. It is almost exact to the specs of the Arkay 12 (tubes, layout, etc) but I have one major problem and that is the fuse, it doesn't have one. Now where I'm planning on putting on a three prong cord on it I would like to put a fuse on it for safety purposes as life is a habit I'm loathe to break about now. :-)
Now in the photo fact for the arkay 12 it says that the transformer secondaries are the following: Sec 1: 680 VCT @ .08a, Sec 2: 5v @ 2a, and lastly Sec 3: 6.3v @ 1.9a .
What I'm wondering is this. What fuse type would I put in for a rating? Where 2 is the highest rating in Amps what amp fuse be okay to do? The other question would be either fast blow or a slow blow fuse? Which would be appropriate for this application?
Any help here would be wonderful and I appreciate any and all answers to my dilemma.
What's the total wattage of the amp as read on the back? (not the speaker power)
You could try a 1amp Slo-Blo and move to a 1.5amp or 2amp if needed, provided the amp is in proper functioning condition.
Likely needs around 1.5 to 2amp SloBlo fuse.
The Arkay 12 is just a basic design and is similar to the Grommes Little Jewel LJ-6, which uses 12AX7's instead of octals. (12 watts w/2 6V6s) The LJ-6 uses 1½ A slo-blo. (I have a pair of these amps) So for yours, I would use the same or perhaps a 2A. A slo-blo type will allow for inrush current. Remember, an MDL type of slo-blo has a longer delay for use with high inrush like motors, so I would recommend a standard slo-blo for this small amp. Now depending on your particular amp's requirements, maybe even a 2½ A. Use a through-chassis fuse holder for convenience in replacing it.
GloBug, you've got nerve using that icon!
I'd be more worried about this guy.
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Besides, I look up to SY and want to be just like him one day, just like you want to be whatever it is in your picture. :)
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