Hadcock headshell dumbell information

fergs1 · 12th January 2007, 08:48 AM

greetings Ladies and Gentlemen, would any one have a reference or any info regarding the hadcock modifigation were by a small dumbell is placed on the headshell to increase the azumith/lateral stability of the arm. Hadcock did have a version that had extra weights at the pivot housing but from what I have heard it is more effective to have a miniature armiture and adjustable weights at the head shell(like a tightrope walker with a balancing pole)Any info would be greatly appreciated
peace and goodwill fergs

sreten · 12th January 2007, 01:51 PM

Hi,

As far as I know this is a mod applicable to any arm as the "dumbell"
is held in place by the catridge screws. The theory is somewhat
dubious in terms of cause and effect, but no harm in trying.

/sreten.

graeme uk · 12th January 2007, 02:30 PM

I have no idea, but thinging logically, you want to controll azumith, the movement you want to controll origionates from the pivot point not the headshell. Therefore it seems logical to have the weights at the pivot. otherwise the mass around the pivot point is trying to pull in one direction and the weights at the headshell are trying to twist it in the other direction.

Doesnt sound good to me.

I am however just thinking logically, ive no idea if my assumptions are right.

tvi · 12th January 2007, 04:00 PM

US4352178 Cartridge equalizer

A bit like this

regards
James

folhaseca · 12th January 2007, 05:25 PM

Sounds alot like the "longhorn" mod by Audio by Van Alstine
deatils are on this pdf.

http://www.avahifi.com/root/audio_ba...pdf/ab1982.pdf

12th January 2007, 08:48 AM	#1
fergs1 diyAudio Member Join Date: Jan 2005 Location: melbourne	Hadcock headshell dumbell information greetings Ladies and Gentlemen, would any one have a reference or any info regarding the hadcock modifigation were by a small dumbell is placed on the headshell to increase the azumith/lateral stability of the arm. Hadcock did have a version that had extra weights at the pivot housing but from what I have heard it is more effective to have a miniature armiture and adjustable weights at the head shell(like a tightrope walker with a balancing pole)Any info would be greatly appreciated peace and goodwill fergs

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Restoring / rewiring an old Hadcock GH228. Advice needed please.	horace	Analogue Source	1	21st July 2008 09:50 PM
FS Hadcock 242 Super Silver	mab	Swap Meet	3	24th July 2007 01:42 AM
modifying hadcock tube length?	fergs1	Analogue Source	2	9th January 2007 04:11 AM
Help with Hadcock 228 tonearm counter weight	fergs1	Analogue Source	11	25th October 2006 01:50 AM
WTB: Grace 727/747 headshell	slydwz	Swap Meet	0	28th June 2005 01:41 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

12th January 2007, 01:51 PM	#2
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, As far as I know this is a mod applicable to any arm as the "dumbell" is held in place by the catridge screws. The theory is somewhat dubious in terms of cause and effect, but no harm in trying. /sreten.

12th January 2007, 02:30 PM	#3
graeme uk diyAudio Member Join Date: Dec 2005 Location: essex	I have no idea, but thinging logically, you want to controll azumith, the movement you want to controll origionates from the pivot point not the headshell. Therefore it seems logical to have the weights at the pivot. otherwise the mass around the pivot point is trying to pull in one direction and the weights at the headshell are trying to twist it in the other direction. Doesnt sound good to me. I am however just thinking logically, ive no idea if my assumptions are right.

12th January 2007, 05:25 PM	#5
folhaseca diyAudio Member Join Date: Nov 2004 Location: canada	Sounds alot like the "longhorn" mod by Audio by Van Alstine deatils are on this pdf. http://www.avahifi.com/root/audio_ba...pdf/ab1982.pdf

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)