Mki Tonebender gating question
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- Posts: 15
- Joined: 23 Nov 2019, 05:49
- my favorite amplifier: Egnater Rebel 30 MK I
- Completed builds: Partial list: Creepy Fingers EQ Exciter Fuzz, Tonebender MK II, Silicon Tonebender MK II, Fuzzrocious Ram the Manparts, Thunderdrive, Fuzz Face. Silicon Fuzz Face, EHX Muff Fuzz, Brian May Treble Booster, DAM Grease Box, DAM Meathead, Lovepedal Woodrow, Lovepedal Eternity, Silicon Fuzz Master, Fuzz Factory, Mastotron, Super Hard On, 73 Rams Head BM, Katzenkonig, Phase 45, Black Dust, RAH, Tentacle, MXR Distortion +, DOD 250 Preamp, Distortron, Naga Viper, JHS Andy Timmons, Pro co Rat, Celine Mark 4, EQD Dunes, EHX OD Glove,, Lemon Drop, 59 Sound, Formula No 5, Formula No. 55, Black Ash, Plexi Drive, 65 Deluxe, Hummingbird, Fuzzolo, Univibe, EQD The Depths, Guzzling, Maestro FZ-1 and FZ-1A, Tonebender MKI, Harmonic Percolator, Zonk Machine, Hybrid Si/Ge Zonk Machine, MBP Harbinger 1.5, MBP Pork Barrel (to original CE-2 specs) and it all started with the Bazz Fuss =)
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Does anyone happen to know what part of the circuit effects the gating? I have been experimenting for weeks and getting a wide range of results, but I can't seem to figure out what components are the ones effecting the amount of gating. I know it can be done because there are mki pedals with a gate control. Just when I think I've pegged it, its wrong and doesn't work. I can usually figure these things out, but this is getting frustrating. Any help would be appreciated.
".....and when I'm sad......I slide!"
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mauman
- Resistor Ronker
You could try varying the Q2 collector resistor (2.2k or 3.3k in most versions, between the -9V supply and Q2). Maybe replace it with a 470R to set a minimum value, in series with a 5k or 10k pot wired as a variable resistor. I've seen this called a "gate" control on fuzzes.
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mauman
- Resistor Ronker
I've built a few TB Mk1 but am far from an expert on them. However here are some recommendations I cribbed from somewhere that I don't recall, they've worked for me.
- TB_Bias1.JPG (22.9 KiB) Viewed 506 times
- TB_Bias2.JPG (18.39 KiB) Viewed 506 times