Tube current and Noise

		Home » Audio Banter forum » UK Audio Newsgroups » uk.rec.audio (General Audio and Hi-Fi)
Tube current and Noise

uk.rec.audio (General Audio and Hi-Fi) (uk.rec.audio) Discussion and exchange of hi-fi audio equipment.

« Intelligence and RIAA | M-Crew server »

LinkBack

Thread Tools

Display Modes

#1 (permalink)

June 16th 07, 09:17 AM posted to rec.audio.tubes,uk.rec.audio

Ian Bell

external usenet poster

Posts: 77

Tube current and Noise

In designing a semiconductor preamp you usually aim for a low collector
current in the first stage as one method of minimising noise.

What is the situation for tubes? RDH talks about triode input noise being
proportional to 1/gm but does not mention any dependency on anode current.
I would have expected shot noise to be pretty much proportional to anode
current.

Cheers

Ian

Report this post as spam, offensive or inappropriate

« Intelligence and RIAA | M-Crew server »

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts vB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are On Pingbacks are On Refbacks are On

All times are GMT. The time now is 02:42 AM.