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Ampeg Fliptop in a stompbox......The Flipster.

#181
Gee. Thats a tough one. It depends what exactly you're getting out of your Pro. I'd say- no - its not a substitute.

But ...When I A/Bed my Aguilar with the SVT3Pro I found the Aggy to be far cleaner and punchier and the Ampeg had a slight level of fuzzy distortion. I could almost replicate that sound with the Ag and Flipster.

BTW I ended up selling my Aguilar and keeping the SVT3. I realised that fuzzy mush was actually the sound I was after- Seems to work better in the bands I am playing in at high volume.
 
#182
well, I use the SVP to introduce some Ampegish tube warmth to the sound and some times add a bit of theat wooly fuzz with the drive knob.
however I dont play exclusively with it and freeing some money and space by replacing it with a pedal that can sound 85% like the SVP seems the right move to do but I guess you cant drive a roadster and expect room for legs and smooth cruisin' and you cant perform knife turns with a saloon car.....
 
#183
air_leech said:
well, I use the SVP to introduce some Ampegish tube warmth to the sound and some times add a bit of theat wooly fuzz with the drive knob.
however I dont play exclusively with it and freeing some money and space by replacing it with a pedal that can sound 85% like the SVP seems the right move to do but I guess you cant drive a roadster and expect room for legs and smooth cruisin' and you cant perform knife turns with a saloon car.....
Click to expand...

Have you tried a SansAmp?
 
#184
I'm glad I got a link to this thread from other thread. I'm definitely going to build a Fliptop to play with. Are any of the other ROG designs worthwhile for a bassist to build?

Anyway, have any of the TB DIYers had experience with the guitar versions? Just wondering how close to 'right' they sound for someone who plays metal (Metallica, Megadeth, Motorhead etc). I have a guitarist mate that's in a band playing this genre and if they're OK, I'd like to build him a head with a small class D amp so that he doesn't have to lug that massive 100W head he has and can keep his tube rig for studio. Any other DIY stompbox type guitar designs worth adding in?

I'm thinking of building this and a 2x12 or 3x10 cab as a pressie for his B'day as a second lightweight rig. Thought I'd ask for suggestions here before I tackle somewhere like DIY stompboxes.
TIA.
 
#185
olcircuits said:
Hey fellas.

James, thanks for answering Slats' questions. I was going to refer #1 to you anyway, and you answered #2 perfectly.

@ Slats:
I can add to what James said about the preamp tubes. The preamp tubes can be swapped for more or less gain, depending on how low or high it is already.

I don't know what's already in your amp already, but look below to see the gain from low to high. These are the most common.

12AU7/ECC82: low
12AT7/ECC81: med
12AX7/ECC83: highest

Yes, 12AU7/ECC81 has more gain than 12AU7/ECC82 :).

James' original Flipster was built with the equivalent of 4 super-charged 12AX7s. Too high for the Flipster as a bass pedal/preamp, which I understand now.
Click to expand...

Just wanted to comment on this. The 12A_7 types are generally not interchangeable in circuit I can think of a couple of places where a 12AT7 may sub for a 12AX7 at low levels, but a U doesn't sub for a T or X. The only correct sub for an X is a 5751, which has a mu of 70.
 
#187
FWIW every tube preamp/DI/effect I have ever used (and that's a great many) was able to run on any of the 12A_7 series. The only differences resulting were levels of gain, distortion, signal/noise, and other qualities you might expect from changing the gain structure at a given point. None of the devices failed, had difficulties, or performed badly when swapping the X/T/U/Y series tubes.
 
#188
bongomania said:
FWIW every tube preamp/DI/effect I have ever used (and that's a great many) was able to run on any of the 12A_7 series. The only differences resulting were levels of gain, distortion, signal/noise, and other qualities you might expect from changing the gain structure at a given point. None of the devices failed, had difficulties, or performed badly when swapping the X/T/U/Y series tubes.
Click to expand...
I'm sorry, but my experience is different and the theory definitely backs it up. Put a U in an X cct and it'll be starved.
Never said anything would be damaged.
 
#189
A9X said:
Put a U in an X cct and it'll be starved.
Click to expand...

So in your experience what happens when a tube is starved? I reiterate that I've done this swap in literally dozens of devices, and never noticed any issue.

Edit: To clarify, I'm not challenging your technical knowledge, only asking because our personal experiences differ. I am aware that it is possible to design a circuit that would go too far out of spec when swapping e.g. a 12AU7 for a 12AX7... I just haven't encountered a device where that was an issue yet.
 
#191
Resurrecting old thread...

Guitarist of my band made Flipster for me.

MPF102 as Q4 and J201 as Q1, Q2 & Q3.

All drain voltage set to 7V.

I've tested naked board with my Ibanez EDA900 & Jay Turser JTB-401, and the result is satisfactory.

I've sent the board, pots etc to local custom FX pedal maker to fit in case and final pedal will be delivered in 10 days :hyper:

Total cost so far... about USD 60.

Also I've ordered DHA VT-1 Standard Bass.

I have plan to A/B them.


All these fuss about bass OD - I'm using clear & clean F1 - comes from Judy & Mary loving new female vocalist. :p

Power of Love by Judy & Mary - 1993

 
#192
James Hart said:
I've got a Thor! from ROG as built by Mark @ www.Olcircuits.com
http://www.olcircuits.com/olc_thor.html
That image is the first one and the one I own :smug:
Bass sound clips coming in a few days
here is the guitar one from the ROG team


My next is going to be another ROG collaboration not listed on the ROG site... the Orange Peel
http://www.olcircuits.com/olc_orangepeel.html
here's Mark's guitar clip



I've got a Flipster planned as well.

The Whisker Biscuit is extremely cool and I recorded some clips Mark is going to put up on the site soon.
Click to expand...


thor as in gibson thor? i own that amp. origional tubes and everything.
 
#196
Even if the board of some gear had tubes, they don't sound like an Ampeg B-12, which was his studio monitor amp. There's isolated recordings of his bass posted on the 'Net, and it doesn't sound like you would expect.

[Invalid or Expired Link Removed]


They were posted somewhere on TalkBass once. I have them at home, but I'm not there at the moment.
 
#197
I'd love to hear em.

I never said I wanted to emulate a B15- just add some warmth and dirt to the tone. I've since gotten closer to the sound I was after through an EHX Blackfinger compressor. (This is a pretty old thread) It has 2 drive stages and can give a really chunky overdriven fatness when you crank the first stage. Very under-rated IMO.

Oh... and I also ended up getting a 1965 B15N.

:D
 
#199
Just out of curiosity, what's the sound like on the Flipster compared to a Sansamp? I'm looking for something like the sansamp as far as drive goes, except more transparent and with more midrange. Is the Flipster the pedal for me?
 
#200
Tommy el Gato said:
Just out of curiosity, what's the sound like on the Flipster compared to a Sansamp? I'm looking for something like the sansamp as far as drive goes, except more transparent and with more midrange. Is the Flipster the pedal for me?
Click to expand...

I'd say the Flipster is more transparent than a sansamp, but definitely has less of a mid-bump. Aren't mid-bump and transparent kinda opposite?
 

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