At 07:37 04-02-16, dc wrote:

>  (I've assembled many Zuckermann instruments years ago, and I know 
> all I want to know about their jacks.)

Lest this give a negative impression of Zuckermann's instruments, I 
hasten to point out that ZHI have been offering excellent wooden 
jacks for 20 years or more as an alternative to their older and 
cheaper plastic model.  Of traditional design, these wooden jacks 
work perfectly, and can be retrofitted in place of the brown plastic 
jacks.  I specified them for my Flemish double in 1996 and have never 
had any problems with them.  Along with those made by others in the 
middle of the last century, the Zuckermann plastic jack is surely an 
artefact of history and, in my opinion, only somebody on a severely 
limited budget or lacking interest in historical instruments, would 
install them today.

See 
http://www.hpschd.nu/index.html?nav/nav-4.html&t/welcome.html&http://www.hpschd.nu/tech/act/tongue.html 
(click on "Wolfgang's Jacks" to see photos of the ingenious and 
a-historical jacks by other makers).

David

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