As some of the other posts may have mentioned previously, i'm currently doing a few things with some Sharp gear found locally and digitally online. One was picking up an old SHARP GF5454 for 40 AUD, granted it didnt work and was being used as an display piece, i thought would it be cool to get it functioning as a boombox. The challenges are
1.Annoying the collectors out there by not keeping it stock, which also has prevented me from painting it as it has some nice labelling i dont think i can reproduce which would take away its charm without.
2.using some of the existing swtiches if possible
3.not cutting the external body of the unit.
4.powering it via Li-ion
5.putting more powerful drivers in it
6.using the existing tweater holes
7.having a working radio
8.keeping some functionality of the tape deck
there are probably more, as unlike my other builds im a bit torn with what to do as i've wanted a blaster since i was a kid growing up in the 80's and to find out that its a year younger than me, purchasing this was a dream come true.
First step was to find a good driver as i couldnt fit a decent tweater in the existing housing, which i ended up using the RS100-4 thanks to the feedback from the group.Once i figure out how to put in a divider, the internal volume with be roughly 0.15cuft each side with a box tuning to 70hz giving an F3 of very late 50's but close to a 3db bump. i went with a port that was a similar cross sectional area to a 1 1/4 dia vent, but had a thought when about to cut into the plastic, with reusing the existing vents in the back. I dont quite get what these big vents were for back then, but 3d printed something that looks like it would get star trek fans excited.
1.Annoying the collectors out there by not keeping it stock, which also has prevented me from painting it as it has some nice labelling i dont think i can reproduce which would take away its charm without.
2.using some of the existing swtiches if possible
3.not cutting the external body of the unit.
4.powering it via Li-ion
5.putting more powerful drivers in it
6.using the existing tweater holes
7.having a working radio
8.keeping some functionality of the tape deck
there are probably more, as unlike my other builds im a bit torn with what to do as i've wanted a blaster since i was a kid growing up in the 80's and to find out that its a year younger than me, purchasing this was a dream come true.
First step was to find a good driver as i couldnt fit a decent tweater in the existing housing, which i ended up using the RS100-4 thanks to the feedback from the group.Once i figure out how to put in a divider, the internal volume with be roughly 0.15cuft each side with a box tuning to 70hz giving an F3 of very late 50's but close to a 3db bump. i went with a port that was a similar cross sectional area to a 1 1/4 dia vent, but had a thought when about to cut into the plastic, with reusing the existing vents in the back. I dont quite get what these big vents were for back then, but 3d printed something that looks like it would get star trek fans excited.
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