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Old 04-06-2007, 09:29 PM   #1
call1800ksmyazz
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Kerry's Valve Junior Mods 2 and 3!

Hello again UGers! This is my second installment of my Valve Junior Head mods. Many of you have seen my first one which I basically made the amp into a beast of a Single Ended tube amp.

Well I got an order for one (yes I sell em). The person asked for the following mods: Marshall Mods, New Output Transformer, Line Out, L-Pad Attenuator, Negative FeedBack Switch, Gain Switch, and Master Volume. I recieved the head yesterday and did most of the mods today. Im waiting for the L-Pad and Output Transformer to do them. This amp turned out great so far! Its a little Marshall tone monster when cranked!!!

Heres some stock, then modded pictures:











Kerry
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Last edited by call1800ksmyazz : 05-18-2007 at 10:03 PM.
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Old 04-06-2007, 09:40 PM   #2
XxAlexi6661xX
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thats so sick. how much are you running to do that
?
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Old 04-06-2007, 09:41 PM   #3
call1800ksmyazz
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Depends on what you want. Please email me at kerrynet32@hotmail.com and we can discouss and get you a price.

Cheers man
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Old 04-06-2007, 09:41 PM   #4
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SWEET man!!! how'd you learn how to do all that?
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Old 04-06-2007, 09:41 PM   #5
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That's awesome, do you have any sound clips of it or any others you've modded?
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Old 04-06-2007, 09:47 PM   #6
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Is it just the photo or do the knobs not line up? It would be cool if you put an arrow around the master as well, make it look more professional.

Clips would be cool.
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Old 04-06-2007, 10:20 PM   #7
call1800ksmyazz
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The knobs line up. Its just that I didnt have an extra (its on order right now) so I just put one on without screwing it tight for the pics lol.

I have sound clips of the first one which you can hear by going to the page in my sig. Clips for this will come sometime soon.
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Old 04-06-2007, 11:03 PM   #8
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Cool.

I got an email from Indyguitarist advertising your ebook, good to see that worked out.
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Old 04-06-2007, 11:13 PM   #9
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Not bad
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Old 04-07-2007, 01:18 AM   #10
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thats awesome, and yo kerry, what do you have to mod for it to get more wattage, well not nessacarily wattage, but just more output without really distorting the sound? A transformer or something?? Sorry for the really dumb sounding question.
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Old 04-07-2007, 08:24 AM   #11
call1800ksmyazz
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You need to change the Output Transformer, Raise the input impedance, short out R6, and maybe add an Octal power tube socket.
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Old 04-07-2007, 02:07 PM   #12
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Sweetness. Hey, would it be possible to make the High/Low gain footswitchable?
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Old 04-07-2007, 02:18 PM   #13
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Hmm... Yes, but there really isnt much of a point. I mean, its just as easy to turn around and hit a switch haha
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Old 04-07-2007, 03:31 PM   #14
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It wouldn't be difficult. Just change the switch with a 1/4" jack and hook up a foot switch. A foot switch is pretty much just an SPST on a patch cable.
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Old 04-07-2007, 04:26 PM   #15
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^-Yea thats what I was thinking. You can also do things like that for attaching external sensors and such for pedals.
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Old 04-07-2007, 04:29 PM   #16
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I want to mod my Valve Junior, but I'm too nervous, and my mom would freak out because it's relatively new.
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Old 04-07-2007, 04:32 PM   #17
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I bought mine specifically for modding. There are some pretty glaring design flaws in the circuit. Tell her it'll extend the life of the tubes that are in it if you mess around with it. Plus, it'll give you a better sound so you'll be less likely to replace it later on.

I love mine now that I've done all the mods to it. I need to mess with the distortion characteristics as I find them a bit fizzy, but I'm not too worried about it.
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Old 04-07-2007, 04:33 PM   #18
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Kerry, your site is down btw.
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Old 04-07-2007, 04:54 PM   #19
call1800ksmyazz
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^-Thanks. I know its down. Its changing host/server. Hopefully it will be up next week or so. Im being hosted by Gabe (Gabel) and Affe so yea, their nice enough to host it for me.
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Old 04-07-2007, 05:26 PM   #20
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Do you have a website link that will teach me how to mod amps? I am very interested in modding mine to get more options out of it...please?
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