Search found 40 matches

by Pacosipulami
Thu Feb 03, 2022 10:54 pm
Forum: Technical Discussion
Topic: 12V to 250V schematic? (Tube in pedal platform)
Replies: 5
Views: 1470

Re: 12V to 250V schematic? (Tube in pedal platform)

You’re not giving yourself much headroom with a limit of 500mA for your 12V supply. That pretty limits you to only using 12AX7s. 300mA of that is already allocated to the 2 heaters. So, if you are really optimistic and hope to get around %90 efficiency, that only leaves you with an availability of ...
by Pacosipulami
Sun Mar 07, 2021 7:48 pm
Forum: Dumble Discussion
Topic: Dumble video/sound clip reference, real Dumbles only please
Replies: 383
Views: 350608

Re: Dumble video/sound clip reference, real Dumbles only please



Karl Ratzer, live in 1999 - with his Dumble ODS Silverface Combo - enjoy!
by Pacosipulami
Mon Feb 01, 2021 6:08 pm
Forum: Technical Discussion
Topic: Spectrum Software Micro-cap 12 is free now
Replies: 1
Views: 482

Re: Spectrum Software Micro-cap 12 is free now

Thank you! I know that for quite some time and love the application very much alongside with the newest update of LiveSpice for my circuit simulations. Before I used LTSpice and I didn't touch it afterwards.... :wink:
by Pacosipulami
Mon Feb 01, 2021 6:05 pm
Forum: Technical Discussion
Topic: Real Time SPICE Simulation
Replies: 8
Views: 2376

Re: Real Time SPICE Simulation

Hi all LiveSpice got updated recentely and I tested it on my crappy core 2 duo machine with one of my tube overdrive pedal designs (3 high voltage triodes cascaded) into a clean fender princeton type amplifier in real time (about 5ms RTL) https://www.youtube.com/watch?v=TTOPCtSGTMw I was so excited ...
by Pacosipulami
Mon Jul 18, 2016 9:46 pm
Forum: Dumble Discussion
Topic: Came across this Fractal AxeFX demo #102 style - impressed!
Replies: 26
Views: 6142

Re: Came across this Fractal AxeFX demo #102 style - impressed!

norburybrook wrote:I do hope though that our lovely amps wont go the same way as a lot of the hardware sat in my studio.!!
Marcus, they wont - believe me! The Axe is pretty cool, but not even close to a real amp ;)

For me it was such an experiment how close I can get to my favorite tones! ;)

all the best
Paco
by Pacosipulami
Sun Jan 03, 2016 9:02 am
Forum: Dumble Discussion
Topic: Came across this Fractal AxeFX demo #102 style - impressed!
Replies: 26
Views: 6142

Re: Came across this Fractal AxeFX demo #102 style - impressed!

https://dl.dropboxusercontent.com/u/100561953/boston-ufo-funk.mp3 (test with the "secret" Tom Scholz Hyperdrive Pedal trough a ODS type sound....) https://dl.dropboxusercontent.com/u/100561953/24082014.mp3 (Tape delay and ODS type lead....) https://dl.dropboxusercontent.com/u/100561953/DLA-Fun.mp3 (...
by Pacosipulami
Sat Jan 02, 2016 10:19 pm
Forum: Dumble Discussion
Topic: Came across this Fractal AxeFX demo #102 style - impressed!
Replies: 26
Views: 6142

Re: Came across this Fractal AxeFX demo #102 style - impressed!

Here are more of "my" clips for you.... :P https://dl.dropboxusercontent.com/u/100561953/lastsaturday.mp3 https://dl.dropboxusercontent.com/u/100561953/idee1976-1.mp3 https://dl.dropboxusercontent.com/u/100561953/huggahugga.mp3 https://dl.dropboxusercontent.com/u/100561953/strangedance.mp3 these wer...
by Pacosipulami
Wed Dec 23, 2015 3:02 pm
Forum: Dumble Discussion
Topic: Came across this Fractal AxeFX demo #102 style - impressed!
Replies: 26
Views: 6142

Re: Came across this Fractal AxeFX demo #102 style - impress

rogb wrote:Apart from the really lovely playing, I was also impressed by the poster's discovery that Dumble style is also about controlling dynamics right there through your picking and (IMO fretting) hand.
Indeed ;)
by Pacosipulami
Tue Sep 15, 2015 5:19 pm
Forum: Dumble Discussion
Topic: Funktion of the Rock/Jazz switch ?
Replies: 7
Views: 1955

Re: Funktion of the Rock/Jazz switch ?

No. The R/J switch changes the risistor/capacitor network of the tonestack. The effect is a more hifi balanced sound and a significant loss of volume when the jazz mode is engaged. The switch (relay) that bypasses the tonestack is called "preamp boost" (PAB) and it is omited in your schematic. Lars...
by Pacosipulami
Tue Sep 15, 2015 6:15 am
Forum: Dumble Discussion
Topic: Anyone Using .022uF Cap on Post OD Tone Control?
Replies: 30
Views: 7389

Re: Anyone Using .022uF Cap on Post OD Tone Control?

got great results with a A250k pot and a 0.0047 cap on my SE designs
by Pacosipulami
Tue Mar 17, 2015 6:30 am
Forum: Fender Discussion
Topic: Fender Champ 600 talk
Replies: 18
Views: 7189

Re: Fender Champ 600 talk

Hey Mark Make sure the power tube runs at correct bias. Most of these little amps based on legendary models using cathode bias, running much too hot. Biasing correctly also takes out the nasty hum. If you don't like the raspy nasty tone add a 1nF capacitor parallel to the 220k resistor to ground bef...
by Pacosipulami
Wed Mar 11, 2015 9:18 pm
Forum: Dumble Discussion
Topic: Just finished a 102 build, some questions
Replies: 25
Views: 5003

Re: Just finished a 102 build, some questions

Hi, I mostly add a simple cut off filter (250k pot and 2.2 or 3.3nF cap) behind the OD stages to tame the highs a bit down. Works pretty good! I make this a switchable mod along with some other tweaks on non-HRM designs. Pretty nice results as I can tell you. Other thing would be a small capacitor b...
by Pacosipulami
Tue May 13, 2014 10:55 am
Forum: Dumble Discussion
Topic: How to work the Overdrive
Replies: 10
Views: 2917

Re: How to work the Overdrive

jcsifu wrote:The annoying guy with hair plays the guitar not the amp
+1000
by Pacosipulami
Sun May 11, 2014 8:00 pm
Forum: Dumble Discussion
Topic: What makes Dumble style amp sound better?
Replies: 97
Views: 18613

Re: What makes Dumble style amp sound better?

6. Another trick is 4 ohm OT secondary setting into an 8 ohm speaker. I do this the other way around with great results aka a 4ohm load on the 8ohm secondary setting of the OT- it tames the saturation effects of the higher driven output section and create a bit more clarity and definition. This is ...
by Pacosipulami
Sun May 11, 2014 7:23 pm
Forum: Technical Discussion
Topic: Pacosipulami Overdrive Mini
Replies: 8
Views: 2139

Re: Pacosipulami Overdrive Mini

Any chance that you have some sound clips without the AXE FX II ? With respect, 10thtx The AF2 only does the cabinet simulation and reverb in the clip above, since I can't make loud noises in my rental apartment ..... ;) that's why I build myself a reactive loadbox, so the complex frequency-depende...