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Teflon Stax Headphone Jack from HeadAmp - now available, our first part

post #1 of 10
Thread Starter 

HeadAmp is now pleased to offer our first part, which is a custom machined chassis jack for use with Stax electrostatic headphones.  The part is machined from virgin USA teflon for its great electrical properties, and then gold-plated machined pins are inserted.  Use the jacks if you are DIYing your own amplifier or want to upgrade/replace a jack on an existing amplifier/adapter.

 

For now, you can purchase the jacks on eBay (shipping in the USA is included in the price, additional cost for international)

 

 

700700

 

 

 

1 connector - Custom Teflon Chassis Jack for Stax Headphones from HeadAmp
2 connectors - 2 pcs - Custom Teflon Chassis Jack for Stax Headphones fr...
5 connectors - 5 pcs - Custom Teflon Chassis Jack for Stax Headphones fr...
1 connector (normal bias) - Custom Teflon Chassis Jack for Stax Headphones (Normal Bi...


Edited by justin w. - 8/3/12 at 8:17pm

HeadAmp Audio Electronics - home of the Pico and Gilmore amps.  Now with Audeze, Fostex, HiFiMAN, Sennheiser, and STAX.
Find us at www.HeadAmp.com

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post #2 of 10
That is great news. I always kinda wondered where to get the connectors if you're building a Stax amp.

I do however like the look of the original Stax connectors more. Any chance there will be a black version?
post #3 of 10
Thread Starter 
Quote:
Originally Posted by Tilpo View Post

That is great news. I always kinda wondered where to get the connectors if you're building a Stax amp.
I do however like the look of the original Stax connectors more. Any chance there will be a black version?

 

the material was chosen for its electrical properties.  same reason you see high-end tube sockets in white teflon

HeadAmp Audio Electronics - home of the Pico and Gilmore amps.  Now with Audeze, Fostex, HiFiMAN, Sennheiser, and STAX.
Find us at www.HeadAmp.com

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post #4 of 10

I'll leave it others about the importance of teflon here but we do know it's stable, durable and will hold up to a well flowed solder connection. I like the look of the contacts themselves. Resistance is a big deal in this use. Price seems very fair for a low production item. Are you working on a matching plug with the same metal?


Edited by goodvibes - 8/4/12 at 7:52am
post #5 of 10

teflon is not mechanically stable - electrical properties are great

 

solid teflon here is a audiophile "overkill" approach - not really technically justified by the demands of the application when compared with the rest of the typical ES amp/headphone system's mix of dielectrics - esp FR-4 or related PCB dielectrics inside the amp - and outside even the fringing field from a few feet of the cable running along any solid surface in the room, your chair, your body on the way to your head introduces opportunity for greater interaction with "poor" dielectrics

 

so hopefully having brought some perspective to dampen excessive non-technical fanboyism - I will be ordering a few myself

post #6 of 10
Thread Starter 
Quote:
Originally Posted by goodvibes View Post

Are you working on a matching plug with the same metal?

 

no, there's not enough demand for it.  i had to make 1,000 of these connectors for it to be worth it.

HeadAmp Audio Electronics - home of the Pico and Gilmore amps.  Now with Audeze, Fostex, HiFiMAN, Sennheiser, and STAX.
Find us at www.HeadAmp.com

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post #7 of 10
Quote:
Originally Posted by jcx View Post

teflon is not mechanically stable - electrical properties are great

 

solid teflon here is a audiophile "overkill" approach - not really technically justified by the demands of the application when compared with the rest of the typical ES amp/headphone system's mix of dielectrics - esp FR-4 or related PCB dielectrics inside the amp - and outside even the fringing field from a few feet of the cable running along any solid surface in the room, your chair, your body on the way to your head introduces opportunity for greater interaction with "poor" dielectrics

 

so hopefully having brought some perspective to dampen excessive non-technical fanboyism - I will be ordering a few myself

Teflon may be overkill but I'd like to hear your take on what's stable.

 

Teflon is chemically inert. At temperatures below 300 degrees Celsius (572 degrees Fahrenheit) it won't dissolve in solvents, including water, the universal solvent. It resists turning brittle at low temperatures, and it won't catch fire at ordinary temperatures.


Teflon's nonstickiness and heat resistance are put to use in lubricants for high-speed, high-heat electrical equipment. Chemical equipment used to pump corrosives will have Teflon-coated valves. Carpet makers coat their products with Teflon to resist staining. Artificial body parts are made from Teflon, which won't react with the body and can't be destroyed by the body's defenses.

 

If you meant mechanically strong which is very different than stable, you can strengthen with filler. It's certainly strong enough for this purpose so more would be.....overkill.wink_face.gif


Edited by goodvibes - 8/4/12 at 1:39pm
post #8 of 10

I linked to teflon mech properties at the other place - it has a crystallographic transition right around room temp that gives nearly 1% volume change and it creeps/flows forever - the nuts are a good idea - press fits wouldn't be

 

http://www.rjchase.com/ptfe_handbook.pdf


Edited by jcx - 8/4/12 at 2:22pm
post #9 of 10

That's really not bad at all but I get it. Thanks. I think it has enough elasticity where a press could be safe enough if done right.


Edited by goodvibes - 8/4/12 at 3:24pm
post #10 of 10

I'm sitting here dreaming that there might be a slight discount on two normal bias plugs vs. one at a time, but I know that just isn't going to happen. 

 

I have two amps to complete, and both will need normal and high bias sockets. 

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