View Full Version : traynor ygl markIII mods
ssdeluxe
01-28-2008, 01:09 PM
was asked this over on the amps section, thought I would add them here as well (that cool mods ?)
HERE THEY ARE! : THE EDWARDAMP.COM JGL MODS! :
ok...sorry for the delay, my brother was gracious enough to put his mods in pdf form and attach schem. pics for those savy enough to try it yourself.
n.b . mod 2 is the mod for the neg. feedback reduction (it was not stated by Ed as so, just wanted to be clear.)
http://www.edwardamp.com/TraynorYGL-3AMKIIImod.pdf
hope you guys find these useful !
take care
stephen
p.s. not meant to plug my brother in anyway, guys were just asking about all the mods he did on my ygl markIII, and he has nicely put them in pdf .! thanks.
co-intelpro
01-28-2008, 01:13 PM
Any mods for a YGM-1 Guitar Mate Reverb? I find the reverb needs a dwell knob (since I replaced V1 with a 12AX7), and the amp has some serious ice-pick highs and humped mids. I want it to sound like an AC15...wishful, I know.
traynor_garnet
01-28-2008, 01:34 PM
Any mods for a YGM-1 Guitar Mate Reverb? I find the reverb needs a dwell knob (since I replaced V1 with a 12AX7), and the amp has some serious ice-pick highs and humped mids. I want it to sound like an AC15...wishful, I know.
I have a YGM-1 and agree about the reverb. I also run a 12ax7 in V1 (my tube chart originally called for a 12ax7 there, but it's crossed out and 12au7 is written in pen). I now run a 5751 in the reverb position to try to tame it but I still put the dial on about "1/2"; I've tried a 12au7 in this position but it cannot handle the current and burns up. I too would love to tame the reverb somehow.
The mid-value on these amps is nuts. My tech said its like having the mids fully cranked on a Marshall! I had the eq basically changed to BlackFace values and the amp sound MUCH better and is far less fatiguing on the ear.
TG
Adicted to Tubes
01-28-2008, 04:00 PM
Don't be tempted to use AU tubes in the guitarmate.They will not be biased properly and will indeed burn up.
The reverb is capacitor coupled and can be tamed by a resistor change where the dwell control would normally be added.
The tonestack is a 'baxandal
stack and it has a pronounced mid boost.It takes some getting used to and some people just give up and switch to a fender style stack.
the voltages are really high at about 420v or so to give it as much wattage and cleans as possible.If you drop the voltage to the reverb section it will tame the reverb as well.Just find the filter cap that feeds the B + to the reverb and use a larger dropping resistor it will throttle that excessive reverb back.Use the resistor that gives you the best results.
With a good speaker and some minor mods,the guitarmate can be a fantastic amp.
www.claramps.com
traynor_garnet
01-28-2008, 05:21 PM
Thanks for the info Keith,
If you change the resistor on the reverb will it affect the rest of the preamp in any way? At this point, I don't want to change the sound of the amp I just want to tame the reverb (and maybe kill a bit of the treble in the reverb too!).
From you post, it seems there are two ways to tame the reverb: change a resistor or drop the voltage to the reverb. Which way is easiest and the least intrusive?
Thanks
TG
Don't be tempted to use AU tubes in the guitarmate.They will not be biased properly and will indeed burn up.
The reverb is capacitor coupled and can be tamed by a resistor change where the dwell control would normally be added.
The tonestack is a 'baxandal
stack and it has a pronounced mid boost.It takes some getting used to and some people just give up and switch to a fender style stack.
the voltages are really high at about 420v or so to give it as much wattage and cleans as possible.If you drop the voltage to the reverb section it will tame the reverb as well.Just find the filter cap that feeds the B + to the reverb and use a larger dropping resistor it will throttle that excessive reverb back.Use the resistor that gives you the best results.
With a good speaker and some minor mods,the guitarmate can be a fantastic amp.
www.claramps.com
vBulletin® v3.7.3, Copyright ©2000-2008, Jelsoft Enterprises Ltd.