Fender ToneStack "evolution" - a convenient summary table

[kagliostro]

Here a very convenient summary table

thanks to Structo on ampgarage for posting



K

[HotBluePlates]

You'll have to save/repost the relevant information. It shows up as a broken link to me, probably because I don't have an Ampgarage account.

[kagliostro]

This solve the problem ?

K

[Tyrannocaster]

I don't see any links or summaries at all. I do have an Ampgarage account. I looked at this post earlier and thought "Oh, he's editing it". ?

[kagliostro]

I edited also the first post, can you see the table now ?

K

[tubeswell]

I can see 'em both fine.

Remember also that the tone stacks in question were in amps that differed in other ways (circuit topology OT spec, speaker spec etc), so the actual difference in freq profile between the different types may be more academic. Having said that, I like the 5F6A tonestack in a 5F6A, and the Fender TB tonestack in a PR. (But the 5E3 and 5F2A tone controls, and the big muff tilt control also have their place in various amps). One interesting tone control setup that isn't there is the Blonde Bassman 6G6B bass channel tone control.

[kagliostro]

Here the normal and the bass Tone Stack of 6G6B

K

[Tyrannocaster]

I can see them now. I'd also like to mention that the 5x series tone controls on amps with a single preamp tube are so odd that they really can't be explained.  That's because the interaction of the volume controls is FAR more important than the tone control itself but they also interact with the tone control so the pair of knobs make for a dizzying ride which a lot of people really don't like. I LOVE it though, and am building an amp around it right now.

[HotBluePlates]

That's a pretty handy summary.

It's worth noting that while the Fender stack shown in a freq plot may be centered on 320Hz, it doesn't seem to stay that way when you adjust the controls. You'll see when using the Duncan Tone Stack calculator that the center of the mid-dip seems to slide higher/lower slightly if you increase/decrease one control while leaving the other the same.

Going in a whole different direction, I built a T-filter (which provides a mid-dip somewhat like the overall shape of the blackface circuit), but adding a control which slides the center of the dip higher/lower. It's interesting how dramatically the amp's sound changes when you move that dip from, say, 300Hz to 800Hz.

I added a second control that reduces the amount of dip (never quite gets to perfectly flat, but comes close enough).

The overall idea was discussed over on the Amp Tools section, between me a Spacelabstudio.

[kagliostro]

Going in a whole different direction, I built a T-filter

I added a second control that reduces the amount of dip

Hi HBP, at the moment I'm leaving to Friedrichshafen, this days there is the most important European Electronic Fier and Radio Amateur Flea Market, it is 550km far from here but worth a visit

when I'll be back I sure go to the Amp Tools section and I'll read with attention the tread

I'm interested to see the schematic you used and the values, if you can, please, post it here

Thanks

K

[HotBluePlates]

Well, the chart title says, "evolution" but the circuits are not in chronological order. I look at it more as a summary of as many variations as he could fit in one diagram.

[kagliostro]

Right summary is the proper word

K