Vox pathfinder mods10/28/2022 ![]() ![]() Sorry for the cross thread pollination but I know the forums have become more segregated in recent years).Someone was inquiring about mods for the Vox Pathfinder 15/15r amps a while back and I had a look see at what could be done to improve the amp a bit. I thought it might be of some use to the forum. #VOX PATHFINDER MODS MOD#I've allowed for this in the simulation. I have a Vox Pathfinder 15R which I really love. (I posted this mod a while back and recently posted some details about it. ![]() The PF15 has the "light" resistance of the vactrol (tremolo circuit) in the signal path at all times.The PF15 always has the clipping diodes (LED's) in the signal path, whereas on the PF10 they are only in the signal path when the overdrive switch is engaged.An okay amp, now sounds much better This. This means the PF15 has a little more headroom available. I put the Mod Series 10-35 speaker in my Vox Pathfinder 15R, and now this amp sounds like its supposed to sound.The PF15 powers the opamps with +/- 15V as opposed to +/- 13V on the PF10.There are some of differences that should be noted I thought I'd model both the PF10 and PF15 pre-amp stages in LTspice to see how they compared. The PF15R (with reverb) is quite a bit different after the first two opamp stages. #VOX PATHFINDER MODS FULL#Plus it's a DIYer's dream, being a full old-school circuit with a transformer PSU and all through-hole parts. With a few mods and a cab it sounds very nice. I found schematics for both the PF15 and the PF15R online, and saw that there were a lot of similarities between the PF10 and the PF15, particularly the earlier non-reverb PF15. That's my second ongoing small guitar amp project after the Fender Champion 40. I'd been considering doing some of these, but whilst researching the subject, I discovered that the currently out of production (as at Nov '18) Pathfinder 15/15R generally receives a lot more love than the Pathfinder 10. There are quite simple modifications that can be done to this amplifier to remove the clipping LED's and increase the boost of the clean channel (check out Ben Craven's mods for details). It's a great little amplifier, but I don't care for the distortion channel, it just sounds harsh to my ears. Withington R see Collett JH Mod ProblOphthalmol 10 : 361-75, 1972 ( Ger ). I've got a Vox Pathfinder 10 amplifier that I bought a couple of years ago, and I love it. Vox Sang 21 : 319-26, Oct 71 Wit SL see Greve PA Witaker JR see Williams DC. Thread starter folkrock75 Start date folkrock75 New member. ![]()
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