Sealed back metal tuners

Construction and repair of Classical Guitar and related instruments
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Sealed back metal tuners

Post by MessyTendon » Mon May 14, 2018 12:43 am

Is it possible to utilize the standard electric type tuners for nylon strings? The only reason I ask is because I think the Stauffer, stratocaster style headstock looks cool, but of course the reproduction antique tuners are quite expensive...

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Les Backshall
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Re: Sealed back metal tuners

Post by Les Backshall » Mon May 14, 2018 3:56 pm

Yes you can, but the headstock will need to be a lot thinner (about 16mm max) which means a volute or something similar at the neck join.
Also, they are a lot heavier - 250-290 gm compared with around 150 for standard cg machines.

Lester Backshall, Guitar Maker - Aylesbury UK

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Re: Sealed back metal tuners

Post by printer2 » Tue May 15, 2018 3:56 am

I picked up some Ping six on a plate open back tuners that fit a Fender style guitar. I did have to get a set of ferrules for it. I think they came in around 180g. I would reweigh them but I cleaned up and am not really sure where they are.

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Re: Sealed back metal tuners

Post by es335 » Tue May 15, 2018 5:03 pm

Why not using individual tuners with Emberger rollers which are longer than those for steel string guitars or electrics. Such tuners are available from Schaller, Rubner and even Der Jung if my memory serves me well. Their weight shouldn’t exceed classical three on a plate tuners too much.

BTW the Rodger Stauffer tuners I once saw in Bernd Kresse‘s workshop were really heavy, so heavy that he was even unsure wether to use them or not on the replica they were dedicated for.

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Re: Sealed back metal tuners

Post by es335 » Wed May 16, 2018 7:35 pm

How about one half of a twelve string guitar tuner set like Der Jung‘s 441AB-SI with Emberger roller, 18:1 ratio and 110 gr (total weight 220 g)?

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Re: Sealed back metal tuners

Post by Mr.Rain » Fri May 18, 2018 8:33 am

I have seen a good amount of pre 1920s classical guitars that used pegs, converted to machine heads just like they were steel strings (with the shafts of the tuner coming from the back of the heads stock). Sometimes i wonder if that is right or it is an atrocity.

I have an Andres Marin (really old probably 191X or earlier)also with wooden pegs, but I am thinking about my options(i have RSI so the last thing i want to do is to have to tune that guitar...).

I was checking the pegheads and some other mechanical "pegs" but the shaft hole is 9.8 at is thickest i think i can't use any normal pegs (will have to find a dealer willing to measure viola pegs for me maybe...)

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Re: Sealed back metal tuners

Post by Michael.N. » Fri May 18, 2018 11:56 am

Pegheds that I use are 8.5 mm. In any case you'll most likely need a reamer of some sorts even with viola pegs.

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