Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Registered members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Audio and Video Talk
The Vintage Audio Section
Quad 33 restoration
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support AVForums:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="marantz123" data-source="post: 936882" data-attributes="member: 16849"><p>Pots, especially some vintage types were specified with up to 20% tolerance, with logrithmic tapers being less accurate ( in manufacture with inconsistent result variations) as compared to linear taper, which was more consistent/accurate. Your 56k is 20% more than the 47k spec and is "bordeline within the spec", for lack of better grammar.</p><p></p><p>Another test would be to measure from one end pin to the wiper and compare these measurements on both gangs as you vary the wiper position. You may find the variation between them is not that far apart...and your pot may be within spec wrt usability.</p></blockquote><p></p>
[QUOTE="marantz123, post: 936882, member: 16849"] Pots, especially some vintage types were specified with up to 20% tolerance, with logrithmic tapers being less accurate ( in manufacture with inconsistent result variations) as compared to linear taper, which was more consistent/accurate. Your 56k is 20% more than the 47k spec and is "bordeline within the spec", for lack of better grammar. Another test would be to measure from one end pin to the wiper and compare these measurements on both gangs as you vary the wiper position. You may find the variation between them is not that far apart...and your pot may be within spec wrt usability. [/QUOTE]
Insert quotes…
Verification
Post reply
Audio and Video Talk
The Vintage Audio Section
Quad 33 restoration
Top