Spare hole, what mod?
Moderators: Slowy, Capt. Black
- NippleWrestler
- Vintage Post Junkie
- Posts: 3307
- meble-kuchenne.warszawa.pl
- Joined: Sat Jan 02, 2016 5:05 pm
- Has liked: 86 times
- Been liked: 1258 times
Spare hole, what mod?
By changing the fx loop on my Mesa dc10 from parallel to series the mix knob is now redundant (it's out the circuit). As such, there's a hole on the back of the amp where that pot once lived, meaning there's scope for something back there.
Any ideas on what's a fun useful mod to install?
I wondered about a variable nfb control (like a resonance mod), or a cold clipper switch, or variable slope resistor... Something like that but if there's something you guys have used that's interesting id love to hear.
Any ideas on what's a fun useful mod to install?
I wondered about a variable nfb control (like a resonance mod), or a cold clipper switch, or variable slope resistor... Something like that but if there's something you guys have used that's interesting id love to hear.
- StrummersOfThunder
- Vintage Post Junkie
- Posts: 8020
- Joined: Sun Jul 15, 2012 2:23 pm
- Has liked: 1017 times
- Been liked: 1615 times
Re: Spare hole, what mod?
Pencil sharpener?
Cigar cutter ?
Somewhere to sheath your conductors baton ?
Cigar cutter ?
Somewhere to sheath your conductors baton ?
Re: Spare hole, what mod?
Hmm. The nfb is fairly strong so you might get an interesting result from changing it up.
There's lots of 'more gain' mods you could do on the lead channel. For voicing, try a 1M pot in place of the 470k that's in parallel with the 2n2 in the peaker after the first stage. On the lead channel, could also try a pot in place of the fixed treble control on the pseudo tone stack mesa have in there for a bit of voicing and gain control.
There's lots of 'more gain' mods you could do on the lead channel. For voicing, try a 1M pot in place of the 470k that's in parallel with the 2n2 in the peaker after the first stage. On the lead channel, could also try a pot in place of the fixed treble control on the pseudo tone stack mesa have in there for a bit of voicing and gain control.
- robthemac
- Vintage Post Junkie
- Posts: 9583
- Joined: Sun Apr 28, 2019 3:47 pm
- Has liked: 1177 times
- Been liked: 1576 times
Re: Spare hole, what mod?
Reverb dwell,? Might be technically tricky, but a control that I wish more amps had.
- StrummersOfThunder
- Vintage Post Junkie
- Posts: 8020
- Joined: Sun Jul 15, 2012 2:23 pm
- Has liked: 1017 times
- Been liked: 1615 times
Re: Spare hole, what mod?
What is the amp circuit in the vibroking ?
Be tempting to do a single channel ab763 with a 6g15 verb …
- NippleWrestler
- Vintage Post Junkie
- Posts: 3307
- Joined: Sat Jan 02, 2016 5:05 pm
- Has liked: 86 times
- Been liked: 1258 times
Re: Spare hole, what mod?
There's enough gain in their already tbh, at least for what I like to play. The voicing is also generally fine too and there's a Marshall style tone stack and a graphic EQ to shape it more.Optical wrote: ↑Mon Nov 18, 2024 9:13 am Hmm. The nfb is fairly strong so you might get an interesting result from changing it up.
There's lots of 'more gain' mods you could do on the lead channel. For voicing, try a 1M pot in place of the 470k that's in parallel with the 2n2 in the peaker after the first stage. On the lead channel, could also try a pot in place of the fixed treble control on the pseudo tone stack mesa have in there for a bit of voicing and gain control.
I found the mention of the pot in place of the fixed treble control interesting though, that would be the 2x100k resistors here? Or the 750k?
Another thought I had was just to bypass this fixed tone stack altogether, although by simulating it it seems to add a bit of upper mid snarl which is quite welcome tbh.
- jeremyb
- Chorus of Organs
- Posts: 43765
- Joined: Sat Dec 06, 2008 9:03 am
- Has liked: 8849 times
- Been liked: 4588 times
Re: Spare hole, what mod?
Damn, I thought by the title my skills would be required
Standing on top of the world
- Jay
- Vintage Post Junkie
- Posts: 8222
- Joined: Sat Sep 25, 2010 9:35 pm
- Has liked: 1795 times
- Been liked: 1469 times
Re: Spare hole, what mod?
The 750k and gain pot form a voltage divider. For a treble pot replace the 2x100k and 1x15k pot with a 250k pot.NippleWrestler wrote: ↑Mon Nov 18, 2024 9:32 amThere's enough gain in their already tbh, at least for what I like to play. The voicing is also generally fine too and there's a Marshall style tone stack and a graphic EQ to shape it more.Optical wrote: ↑Mon Nov 18, 2024 9:13 am Hmm. The nfb is fairly strong so you might get an interesting result from changing it up.
There's lots of 'more gain' mods you could do on the lead channel. For voicing, try a 1M pot in place of the 470k that's in parallel with the 2n2 in the peaker after the first stage. On the lead channel, could also try a pot in place of the fixed treble control on the pseudo tone stack mesa have in there for a bit of voicing and gain control.
I found the mention of the pot in place of the fixed treble control interesting though, that would be the 2x100k resistors here? Or the 750k?
Screenshot 2024-11-18 102945.png
Change the next 15k resistor for a 250k bass pot and the 62k resistor for a 25k Mid pot and voila, you have a typical Fender tonestack
- NippleWrestler
- Vintage Post Junkie
- Posts: 3307
- Joined: Sat Jan 02, 2016 5:05 pm
- Has liked: 86 times
- Been liked: 1258 times
Re: Spare hole, what mod?
Yeah its a fixed thing pushing the upper mids. Downstream from there is your typical Marshall stack, albeit with the Mesa 82k slope resistor.Jay wrote: ↑Mon Nov 18, 2024 10:45 amThe 750k and gain pot form a voltage divider. For a treble pot replace the 2x100k and 1x15k pot with a 250k pot.NippleWrestler wrote: ↑Mon Nov 18, 2024 9:32 amThere's enough gain in their already tbh, at least for what I like to play. The voicing is also generally fine too and there's a Marshall style tone stack and a graphic EQ to shape it more.Optical wrote: ↑Mon Nov 18, 2024 9:13 am Hmm. The nfb is fairly strong so you might get an interesting result from changing it up.
There's lots of 'more gain' mods you could do on the lead channel. For voicing, try a 1M pot in place of the 470k that's in parallel with the 2n2 in the peaker after the first stage. On the lead channel, could also try a pot in place of the fixed treble control on the pseudo tone stack mesa have in there for a bit of voicing and gain control.
I found the mention of the pot in place of the fixed treble control interesting though, that would be the 2x100k resistors here? Or the 750k?
Screenshot 2024-11-18 102945.png
Change the next 15k resistor for a 250k bass pot and the 62k resistor for a 25k Mid pot and voila, you have a typical Fender tonestack
- Bg
- Site Admin
- Posts: 44148
- Joined: Fri Sep 05, 2003 12:13 am
- Location: Sunny Nelson
- Has liked: 2354 times
- Been liked: 4226 times
Re: Spare hole, what mod?
Is that a euphemism?
Its not enough that we succeed, we still need others to fail