Search found 14 matches
- 20 Jul 2023, 22:47
- Forum: Boutique Stompboxes dissected...
- Topic: JHS - Colour Box
- Replies: 6
- Views: 3456
Re: JHS - Colour Box
Is the audio transformer used on the input or on the output of the colour box? Anyone know? I would think the output, but the Neve 1073 has two transformers one way bigger than the other..
- 22 Apr 2011, 20:26
- Forum: Electric Guitar/Bass Wiring
- Topic: Inductor on tone pot?
- Replies: 37
- Views: 21979
Re: Inductor on tone pot?
You need more than 1.5H on a bass to get to the desired low mid frequency. You could of course use the smaller coil value & a bigger value cap (using the previously stated math) but this sounds different than a bigger coil & smaller cap. This effect has nothing to do with frequency, but with...
- 06 Oct 2010, 12:58
- Forum: Electric Guitar/Bass Wiring
- Topic: noise in TLE2426CP rail splitter
- Replies: 2
- Views: 2079
Re: noise in TLE2426CP rail splitter
Thanks DR Nomis, That does clarify the situation quite a lot for me! It seems theres' no need to worry about it being too noisy with these specs, as my preamp does not have a lot of gain. At present I am working against a deadline building an electric upright bass & a relic telecaster. So when t...
- 27 Aug 2010, 22:28
- Forum: Electric Guitar/Bass Wiring
- Topic: Rewiring Fender Strat
- Replies: 7
- Views: 3925
Re: Rewiring Fender Strat
You could put the switch to use as a passive bass cut control to get old style rickenbacker jangle tones.
A standard 5 way switch will allow for 3 different styles of basscut. 2 positions will have to be the same, and just be a true bypass of the signal with no basscut.
Just a simple idea..
A standard 5 way switch will allow for 3 different styles of basscut. 2 positions will have to be the same, and just be a true bypass of the signal with no basscut.
Just a simple idea..
- 20 Aug 2010, 20:58
- Forum: Transistors
- Topic: a case against the j201?
- Replies: 19
- Views: 35779
Re: a case against the j201?
Hey coldcraft, I think what RG means here is that there is simply a smaller variation in pinchoff/cutoff voltage in the low Vgs types than in the higher Vgs types. This makes biasing them less critical, but not necesarily better! For instance pinchoff in a J201 can vary from 0.3 to 1.5V, a differenc...
- 20 Aug 2010, 12:58
- Forum: Transistors
- Topic: a case against the j201?
- Replies: 19
- Views: 35779
Re: a case against the j201?
I am not sure, but think the audio grade 2SK117 is lower noise than the general purpose 2SK246. Never had a noise problem with the latter though. You are probably right about low current and high internal impedance of the j201 interfering with transparency. Always thought it was just the low Vp of a...
- 20 Aug 2010, 11:29
- Forum: Transistors
- Topic: a case against the j201?
- Replies: 19
- Views: 35779
Re: a case against the j201?
Years ago I started using 2SK246 as a replacement for the 2n5457 if I ran out of them. It turns out the 2SK246 is more consistent in Vp & Idss and plainly sounds better to me than the 2n5457. I use it a lot for active on board electronics & other applications where high headroom are desirabl...
- 16 Aug 2010, 10:26
- Forum: Electric Guitar/Bass Wiring
- Topic: Simulating Lower Value Pots?
- Replies: 5
- Views: 2664
Re: Simulating Lower Value Pots?
If you have a 500K volume in your guitar now, putting a 500K resistor parallel to the pot will simulate a 250K (when pot is turned fully open, as this method will not simulate taper).
If you put a 250K parallel to the 500K pot you are simulating a (theoretical) 166K pot.
If you put a 250K parallel to the 500K pot you are simulating a (theoretical) 166K pot.
- 11 Aug 2010, 11:21
- Forum: Electric Guitar/Bass Wiring
- Topic: Suhr Backplate Silent Single Coil
- Replies: 58
- Views: 64189
Re: suhr backplate silent single coil
As long as the pickups are not inside, but above the dummy coil, things should be fine. If you lay the dummy coil on the bottom of a routing as deep as a pickup cavity, it will be under the pickups, as stratpickups sit raised in their scratchplate. If the pickup magnets will not form a core to the d...
- 09 Aug 2010, 22:01
- Forum: Electric Guitar/Bass Wiring
- Topic: Suhr Backplate Silent Single Coil
- Replies: 58
- Views: 64189
Re: suhr backplate silent single coil
If your dummy coil is around your pickups, then you will get (a little) signal loss as the dummy coil is no longer just a dummy coil. It will start to pick up the strings out of phase, albeit at a very low output level. The inductance of the dummy coil will also get bigger, as there will be iron (al...
- 07 Aug 2010, 08:56
- Forum: Electric Guitar/Bass Wiring
- Topic: Inductor on tone pot?
- Replies: 37
- Views: 21979
Re: Passive mid scoop control
I would personally put the coil closest to ground and the cap closest to signal, but for frequency response this wouldn't matter. A 250k or even a 500k should work fine here. 1.5H = the standard value for the gibson varitone. I wouldn't go any smaller than this. If I would want to do a low mid scoop...
- 06 Aug 2010, 14:49
- Forum: Electric Guitar/Bass Wiring
- Topic: Inductor on tone pot?
- Replies: 37
- Views: 21979
Re: Passive mid scoop control
You could use a series (R) LC circuit from signal to ground, like a bill Lawrence Q filter or a Gibson varitone. This will give you a passive midcut. It works best with quite a large value inductor and a small value capacitor. If you have the space inside your guitar you could even use a cheap humbu...
- 06 Aug 2010, 14:37
- Forum: Electric Guitar/Bass Wiring
- Topic: Suhr Backplate Silent Single Coil
- Replies: 58
- Views: 64189
Re: suhr backplate silent single coil
Beware! The backplate system works fine, but does not work very well for reverse wound reverse polarity pickups, like in the G&L Legacy! You need non rw/rp pickups for it to work correctly in every switch position. Otherwise it will cancel hum in some switch positions, and add hum in others.
- 06 Aug 2010, 13:58
- Forum: Electric Guitar/Bass Wiring
- Topic: noise in TLE2426CP rail splitter
- Replies: 2
- Views: 2079
noise in TLE2426CP rail splitter
I am currently developping an active bass preamp based on a pair of state variable filters. I need a voltage reference for the opamps. As the system uses 8 opamps (2 quads) and runs of a battery I want to keep the energy consumption down. A TLE 2426 rail splitter has a far lower energy consumtion th...