DIY Audio Projects Forum
 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

DIY Audio Projects Forum

Welcome to the DIY Audio Projects Message Forum. Use these forums to discuss Hi-Fi audio and to share your DIY Audio Projects. Registration is free and required to post messages and view the file attachments. Registration will only take a minute and registered users do not see any advertisements. After you have completed the online registration process, check your email (including spam/junk folder) for the verification email to activate your account. New members are under moderation - so your posts will not be visible until approved by a moderator. See the Read Me 1st, Forum RULES and Forum FAQ to get started on the forum.

It is currently 24 Feb 2018, 13:00

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 3 posts ] 
Author Message
PostPosted: 30 Dec 2017, 22:50 
Offline
User avatar

Joined: 08 Aug 2009, 03:11
Posts: 2161
Location: Chilliwack, BC
Hi Folks,

Got a machining question here.

Those Ebay/AliExpress amp cases use M3 and M4 hardware. Does anyone know if the pitch is 0.5 or 0.7 :confused:

The reason is I have some mismatches from seller "oopsies" and am going to buy some taps and make useful cases out of them with the existing hardware they supply.
(that and Imperial socket-cap-head screws are getting astronomical as they're being phased out for metric, which are falling to pennies)

Thanks for any help!

_________________
-= Gregg =-
* Ratings are for transistors - tubes have guidelines*
Home: GeeK ZonE
Work: Classic Valve Design


Top
 Profile  
 
PostPosted: 31 Dec 2017, 18:10 
Offline
Project Author
User avatar

Joined: 04 Jun 2008, 20:59
Posts: 3552
Location: Arizona, USA
Hi, Not sure about all the case...but the ones I have here are 0.5.

Good listening
Bruce

_________________
Some of my DIY Tube Amplifier Projects:


Top
 Profile  
 
PostPosted: 31 Dec 2017, 22:06 
Offline
User avatar

Joined: 08 Aug 2009, 03:11
Posts: 2161
Location: Chilliwack, BC
Thanks, Bruce!

0.5 is standard for the 3mm, so I'mma assume standard for the 4mm as well.

The jobber taps for once-in-a-blue-moon use aren't expensive - $3 each. I may as well get both, then use the other for trade with a machinist buddy.

Cheers!

_________________
-= Gregg =-
* Ratings are for transistors - tubes have guidelines*
Home: GeeK ZonE
Work: Classic Valve Design


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Op-amp Projects :: DIY Phono Projects :: DIY Cable Projects :: Hi-Fi Audio Schematics
© diyAudioProjects.com - Terms of Service - Privacy Policy