Rhodes: restoring the harp

A good percentage of the work in getting the Rhodes piano restored is in the harp. It’s the most rundown part of the instrument. It contains the bulk of the metal, and hence corrosion; It’s lived a good percentage of its life in the salty coastal air and will continue to do so. And finally it’s the only part of the job I’m going to employ the services of a 3rd party to complete, so it’s good to get this part underway.

Firstly, lets get the untouched harp into the precision work area (my front verandah) –

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Tines and tonebars and pickups, oh my!

So, lots of metal there. A few select corroded areas –

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Someone’s helpfully written on the notes, just in case you get trapped inside the piano and have to play a tune to get attention
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It seems this part was so corroded I couldn’t hold the camera still

 

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Tonebar corrosion

So, pulling the harp apart is pretty simple, it’s really a matter of unscrewing and unbolting everything, and not destroying the pickup wiring too much. Even simpler if you have a socket set – which I didn’t (that was a flimsy enough pretext to later schedule another adventure to Bunnings). Instead, removing the tines from the tonebars involved wrestling with a pair of shifting spanners, which didn’t go so well when the softish tonebar bolts were deformed, no doubt due to earlier tinkerers who similarly didn’t have a socket set. On the upside, no one lost any eyes, which is an achievement given significant forces required, sharp metal, and beer. Some new tonebar bolts are on order.

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Partially dismantled harp. Note the tonebar-tine pairs still together.

After all the zinc plated parts were removed – that is the outer frame and the tonebars – they were off to be replated. This involved my first exciting trip to the Sydney suburb of Belmore. It was a hot mid-December day, the feeling of which was generally compounded by the general eau-de-bonkers that commercial districts take on a few weeks out from Christmas. My first impression of the place involved mindlessly staring into the distance whilst waiting for the lights to change and inadvertently fixating on the name of a hairdresser across the road entitled “Who’s hair?”. Because English is stupid, of course, this doesn’t take the expected possessive form but instead actually means “Who is hair?”. Yet another obstacle for immigrants trying to set up a new life and business.

I walked to the metal plating factory with my jangly box of metal bits, distractedly pondering that age old question of who exactly is hair, only to discover that having some kind of marked reception area or counter was not applicable. Instead I just kinda found myself in a the middle of bunch of offices, much to the bemusement of the staff. I’m not sure what constitutes a normal client job in a Sydney electroplating factory, but mine certainly wasn’t one. The staff I spoke to all became flustered when I talked to them, and my job was escalated right to the top. After talking to the manager for a while, got them to take the metal bits and off I went. A few weeks later, I got them back in a similar process.

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Before. Also apparently before decent lighting was invented
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After

So all the metal’s been acid bathed, cleaned with some kind of beads (assumedly the abrasive kind, or perhaps just some kind of good luck bead) and then re-plated with zinc chromate (hence the gold colour). It’s all looking pretty spiffy now.

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Outer frame after replating
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Pile o’ tonebars

So now these are back, it’s on to cleaning the pickups, restoration of the wood, and reassembly.

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