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WildBillMojo

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About WildBillMojo

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  1. Hi i'm Anna.

    I аm looking for a gentle аnd SEXy mаn

    My profilе is herе https://sex-gibson.tumblr.com

    Kisses WildBillMojo

  2. OK, I bit the bullet and did it; I ripped out the harness from my beloved 2016 '64 ES-345 VOS (Mono) and modified it. So I've always loved the Varitone, but the treble roll off when turning down the volumes always got to me as I'm used to the 'Vintage' wiring approach on my Les Pauls and use the volumes a lot. Also the guitar was really dark sounding even with everything open. So, job 1, carefully remove the harness. Easier said than done and it took hours. Job 2, carefully trace out the circuit so I understood exactly what's here. What I found is in the first attachment. This circuit is almost exactly like the (difficult to read) Gibson stereo diagram except the outputs of each pick up are connected together at the mono jack. So, two Varitone's ganged together, in parallel with the tone pots, 'before' (connected to the top lug of) the volume. Yes the tone pots are wired opposite to each other but in passive electronics terms this makes no difference (a capacitor and resistor in series works the same which ever way 'round they are). I drew this schematic as I found Gibson's really hard to interpret, particularly how the Varitone is wired. This was important to understand as I was going to rip it apart and put it back together again. The second picture is the Varitone and its' two networks. These were mounted as two blue Surface Mount 'ICs' on the switch. The way the Varitone switch works is as follows: Although in a true passive electronics sense, it’s not really correct to refer to ‘inputs’ and ‘outputs’ on a simple filter circuit like this one, it does help illustrate how the circuit is wired. So, for the IC (NOT the switch), consider Pin 1 to be the input (from the pickups), and Pin 2 to be the output (towards your amplifier). All the other switch connections are there simply to bring different components into and out of the signal path. In switch position 1 (Bypass), IC pins 1 & 2 are shorted so the signal ‘sees’ the IC as a 2MΩ load (10MΩ/5 parallel resistors) which is so much bigger than the alternative paths via the volume control and amplifier input impedance that it has no effect in theory (bypass mode). In position 2, pins 2 & 3 are shorted, so the signal ‘sees’ a notch filter consisting of a 100kΩ resistor, a 0.001µF capacitor and a 15H inductor (not shown here, connected to IC pin 5); in position 3, IC pins 2 and 4 are shorted, so the signal ‘sees’ a notch filter consisting of a 100kΩ resistor, a 0.033µF capacitor and a 15H inductor (not shown here, connected to IC pin 5); in position 4, IC pins 2 and 6 are shorted, etc; in position 5, IC pins 2 and 7 are shorted, etc; in position 6, IC pins 2 and 8 are shorted, etc. Hope that helps. I heard from a guitar tech that the IC's are of variable quality so I built my own single network out of discrete MIL spec components. Next step was to decide on a new wiring solution. There are a number of options here; I could have moved the volumes to before the tone's and kept the rest in tact, but Gibson's own Mono circuit uses 'Modern' wiring with a single Varitone after the pickup selector switch. I chose to wire it as a 'Vintage' circuit, and then add a single Varitone after the pickup selector switch. The last diagram shows the circuit I used. The results are simply astounding. The guitar rings like a bell, it's resonant with clear highs and a huge bottom end. The volumes now work like my Les Pauls but best of all the Varitone still sounds the same.
  3. The Varitone is a wonderfull thing used correctly IMHO. BB King and Freddy King seemed to like it too.......
  4. I have had the "pleasure" of removing and tracing the harness from a '64 VOS ES-345 and if definitely doesn't either have or need 4 wire pickups given the tonal variation available via the Varitone. In fact you couldn't use them without a push-pull pot. The standard wiring diagram of the 2016 '64 VOS ES-345 is attached. I've left out the pot ground wires for clarity. And yes, it is in fact the stereo wiring loom with the outputs joined at the mono jack. Gibson have confirmed that this is as intended,
  5. No, they’re all glued in due to the body construction. However if you want that Firebird headstock there’s the Trini Lopez or the Dave Grohl.
  6. Folks,I've just taken the harness out of my stock VOS '64 345 (mono) to repair a noisy pot. I have a reasonable ability to trace and interpret wiring and I can tell you that it isn't as shown in the mono diagrams from Gibson above. It seems to be the stereo loom with the switch outputs connected together. I can't comment on the phase polarity of the pickups, nor have I actually disassembled the loom to buzz it out but that's what it looks like; e.g. that Varitone is a stereo ganged switch with two sets of inputs, two outs, two capacitor networks and both sides of the stereo choke are used. Also, unlike the picture from Gibson, it uses the 'Vintage' wiring style with the tone control connected to the wiper of the volume, but oddly it still suffers from chronic tone roll-off when the volume is turned down. It is a pretty dark guitar anyway (compared to a LP or 335), which I put down to the MHS pickups, or the Varitone. And no, I don't think the Varitone 'sucks' tone, I like the way it sounds, that's why I bought it. That's not to say of course that the mono circuit shown above shouldn't work, it looks fine, although I'd expect a tonal difference between the picture and my guitar with both pickups selected. It's a pig to work on I can tell you. I have a thread elsewhere about taking the loom out and putting it back for those that are interested. WBM
  7. OK so I have finally done it. A total PIA that took 6 hours to get out, fix and put back in.In case anyone needs the info, here it is. I'm now 100% sure this is the best sequence. Remove strings and knobs Put a couple of small towels on the top of the guitar to protect it Unscrew the Bridge pickup mounting ring and lay the pickup on the top of the guitar Unscrew the Choke from inside the pickup cavity and lay on the top of the guitar Unscrew the switch, all the pots, the Varitone and the jack socket and push them into the body The wiring loom is in a loop to go around the f holes so hence the odd looking sequence. Pull the components out in this order: Selector switch Varitone Neck Volume Neck Tone Jack socket Bridge Tone Bridge Volume Put them back in reverse order or you risk twisting the wiring loom. All of this is a lot easier to type than to do it but if you take it easy its doable. Good luck WBM
  8. OK firstly, before anyone trolls me for ruining a perfectly good VOS, I'm NOT trying to remove the Varitone circuit (I love it). I've got a noisy tone pot that needs changing. So, I've removed the Bridge pickup, removed the choke; all good. Now how the **** does the rest of it come out? I've spend 6 hours on this thing and all I can get out is the bridge pickup Vol pot. My main question to those that may have done this before is this: is there a recommended or 'correct' sequence for removing each control, so that the harness doesn't get tied in knots? Thanks in advance. WBM
  9. The MHS's are standard in my '64 VOS ES-345 of course. Flat out I think they are really great but the lack of top end becomes an issue for me when I roll back the volume (I use the VOL control quite a bit). Thinking of changing the wiring to Vintage instead of Modern which should brighten it up a bit, although I'm balking at the prospect of coughing up $000's on a VOS guitar and then CHANGING it! Not to mention that pulling the harness out of a 345 seems to be quite a bit of trouble........ Still, the guitar's for playing, right? So it needs to sound good.
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