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
Valves / Vacuum Tubes
6X5GT - Tube rectifier input filter capacitance
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="Family_Dog" data-source="post: 926605" data-attributes="member: 82"><p>Hasren, you would need to calculate the value of the resistance required by the voltage drop required, so whatever voltage leaves the cathode of the 6X5 minus the required voltage (220v?) divided by the current drawn. 20mA sounds quite a lot for the preamp but could possibly be so if it is a stereo preamp with at least 2 valves per channel. FWIW, a 12AX7 typically draws about 1mA per anode if I remember correctly. </p><p></p><p></p><p>-F_D</p></blockquote><p></p>
[QUOTE="Family_Dog, post: 926605, member: 82"] Hasren, you would need to calculate the value of the resistance required by the voltage drop required, so whatever voltage leaves the cathode of the 6X5 minus the required voltage (220v?) divided by the current drawn. 20mA sounds quite a lot for the preamp but could possibly be so if it is a stereo preamp with at least 2 valves per channel. FWIW, a 12AX7 typically draws about 1mA per anode if I remember correctly. -F_D [/QUOTE]
Insert quotes…
Verification
Post reply
Audio and Video Talk
Valves / Vacuum Tubes
6X5GT - Tube rectifier input filter capacitance
Top