As promised, here's the schematic for the inductive passive tone controls.
-Steve
Search found 281 matches
- Thu Mar 17, 2005 3:05 am
- Forum: sbench 101
- Topic: Inductive (attenuator) based tone controls
- Replies: 13
- Views: 20490
- Wed Mar 16, 2005 8:59 pm
- Forum: sbench 101
- Topic: Inductive (attenuator) based tone controls
- Replies: 13
- Views: 20490
Inductive (attenuator) based tone controls
The "other" frequency selective use for attenuators is inductive based tone controls. Attached is a LTSpice simulation of a set of tone controls based on this concept. The Treble consists of one tapped inductor (boost side) of 1mH+1mH+4mH+4mH+4mH+4mH (=100mH total) and 30 ohms. (lower resi...
- Wed Mar 16, 2005 4:43 pm
- Forum: sbench 101
- Topic: D3a/EL34 power amplifier
- Replies: 3
- Views: 13448
D3a/EL34 power amplifier
This is one of those "no R, no C" designs. I've attached the schematic gif file as well as the LTSpice ASC source file. Note that you need the include files modeling the tubes too, see SPICE thread for those files.
- Wed Mar 16, 2005 4:37 pm
- Forum: sbench 101
- Topic: LT Spice - Models for Tubes
- Replies: 3
- Views: 34609
LT Spice - Models for Tubes
A lot of this is on Duncan Munro's site, but for more or less completeness, here's how to add tube Spice modeling to LT Spice. In the swcadiii directory (that's the default where all the schematics you create reside - usually under "Program Files" and LTC or whatever) place the include fil...
- Tue Mar 15, 2005 9:26 pm
- Forum: Attenuators
- Topic: Loudness compensation
- Replies: 29
- Views: 30748
- Tue Mar 15, 2005 4:31 pm
- Forum: Attenuators
- Topic: Loudness compensation
- Replies: 29
- Views: 30748
- Mon Mar 14, 2005 4:23 pm
- Forum: Attenuators
- Topic: Loudness compensation
- Replies: 29
- Views: 30748
- Sat Mar 12, 2005 5:20 pm
- Forum: Attenuators
- Topic: Loudness compensation
- Replies: 29
- Views: 30748
- Sat Mar 12, 2005 4:10 am
- Forum: Attenuators
- Topic: Loudness compensation
- Replies: 29
- Views: 30748
- Fri Mar 11, 2005 6:23 pm
- Forum: Attenuators
- Topic: Loudness compensation
- Replies: 29
- Views: 30748
what would be the effect of the L of the autoformer increasing with signal level? i would think that the nonlinearity of the 1X1 would compress the extremes as signal goes up. Here's sim with inductor values increased 1.4 times (70H, 7H etc) Incidentally, this was done under (free for the download)...
- Fri Mar 11, 2005 4:11 pm
- Forum: Attenuators
- Topic: Loudness compensation
- Replies: 29
- Views: 30748
Loudness compensation
Hi All, For my next project, I'm going to do a fully integrated amp... phono, line and power amp. Now I'm one of these wierd characters who actually uses (and likes) "loudness" compensation. In a previous project, I did an experimental LR RIAA phono (no capacitors in sight anywhere) and it...