Chassis Internal Height / Pot Clearance - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

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
Reply
 
Thread Tools Search this Thread
Old 2nd June 2004, 04:09 PM   #1
speaker is offline speaker  United States
diyAudio Member
 
speaker's Avatar
 
Join Date: Mar 2004
Location: USA
Default Chassis Internal Height / Pot Clearance

I would greatly appreciate some guidance -

I am building a tube preamp from folded .063" aluminum sheet stock. I have not decided whether I'll use an attenuator or Alps/Noble-type potentiometer yet however.

I seem to recall that the typical black/blue Alps/Noble units are 1 1/2" (37mm) high. Is that dimension correct? What about some of the attenuator kits? What is their overall height?

I want to keep the outside dimension of the chassis to 2" (50mm) if at all possible but want to leave adequate clearance inside to fit a volume control.

TYIA-

speaker
  Reply With Quote
Old 3rd June 2004, 12:05 AM   #2
diyAudio Member
 
Join Date: Jan 2003
Location: Sweden
Hi,

The ALPS blue is 27mm wide, not 37mm for detailed dimensions see http://www3.alps.co.jp/cgi-bin/WebOb...0/89.4.0.1.1.0

The black older ALPS is much bigger 40mm wide and 40mm high, for current production ALPS pots see http://www3.alps.co.jp/cgi-bin/WebOb...2003&product=4

Normal Noble pots are 18mm high

Goldpoint attenuators are 32.3mm high see here http://www.goldpt.com/dims.html
I prefer Goldpoint over DACT as Goldpoint use holemount type resistors of better quality than the surface mount resistors that DACT use.

As you see 50mm internal height or even somewhat less is enough for most pots and attenuators. My new preamp is 50mm high internally using a Goldpoint attenuator and ALPS pot for balance.

Regards Hans
  Reply With Quote
Old 3rd June 2004, 05:26 PM   #3
speaker is offline speaker  United States
diyAudio Member
 
speaker's Avatar
 
Join Date: Mar 2004
Location: USA
Quote:
Originally posted by tubetvr

As you see 50mm internal height or even somewhat less is enough for most pots and attenuators. My new preamp is 50mm high internally using a Goldpoint attenuator and ALPS pot for balance.

Regards Hans

Thank you very much Hans!

This was exactly the quality of information I needed.

speaker
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Minimum Internal Chassis Size For Audio Sector LM3875 Kit CarlosT Chip Amps 5 6th December 2013 08:45 PM
Driver Clearance jeffshort2000 Swap Meet 8 20th October 2010 04:11 PM
Driver clearance sale Timn8ter Swap Meet 24 11th January 2007 02:00 AM
DIY parts clearance ultranalog Swap Meet 1 31st July 2003 01:59 PM


New To Site? Need Help?

All times are GMT. The time now is 04:06 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2