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Old 12-21-2006, 11:53 AM   #1
call1800ksmyazz
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Kerrys Building a Plexi!

Hey all.

I decided to take a pedal building break and try a tube amp. I have modded my Valve Junior head to what I think is a pretty sick amp! I have ordered a 2x12 cab with Celestions/Hellatones. So I think I have finally gotten my amps up to par with my guitar and pedals with the VJ instead of my SS amps.

So anyways, I was thinking about doing a Fender Champ but then realized that the VJ is basically the same thing. So I thought, hmmm what can get me Plexi tone... a Plexi! Its 18watts so it will be very loud but mildly crankable. I am using top quality components for this so it can sound great.

Heres some specs:
*Carbon Composite Resistors (for 1/2w)
*Metal Film/Wirewound Resistors (for 1w+)
*Orange Drop Capacitors (600w)
*Sprague Atom Capacitor (for Electrolytic Large Values)
*Single Input (for one tube triode at input), Parallel Input (for dual triode at input).
*Volume and Tone controls
*4/8/16 ohm Speaker Out
*12AX7/ECC83 Preamp Tubes
*EL84 Poweramp Tubes
*EZ81 Tube Rectifier
*100% Handwired on Turret/Eyelet Board
*Power and Standby Switches
*Indicator Lamp
*18 Watts

Should be sick Plexi tone ! Still have to order the parts which will cost me lots, but it shouldnt cost more than what I got from the holidays and from working over the holidays. When I order and get my parts I will update with pictures and all!

Kerry
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Old 12-21-2006, 11:58 AM   #2
Son of a Brit
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If you want to buy a plexi kit got to CeriaTone.com or metroamp.com
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Old 12-21-2006, 12:03 PM   #3
call1800ksmyazz
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Way over the price of buying the parts seperate. And dont your read my threads, I dont use kits .

Ohhh Oct 06er. Should have known
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VF-10 Amp
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Old 12-21-2006, 12:26 PM   #4
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Sounds like this should be an interesting project. Good luck with this, I'll definately be checking up on this thread freqeuently.
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Old 12-21-2006, 12:56 PM   #5
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this should me interesting.
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Old 12-21-2006, 02:15 PM   #6
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hey kerry, i have a parts list laying around for an 18watt, you want me to pm it to you? i'd save you some work
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Old 12-21-2006, 02:26 PM   #7
call1800ksmyazz
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I already made one Sempri
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VF-10 Amp
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Old 12-21-2006, 02:31 PM   #8
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Just to be technical about it, the 18 watt isn't really a Plexi, but they do sound great.

And btw, I much prefer the sound of the Mallory 150 capacitors. The Sprague ones are good, but the Mallorys have always sounded smoother to me. They're closer to the stuff used in the vintage amps.

Also skip the Sprague electrolytics, they're only meant for replacement in old stuff, you might as well use new caps. You're not gonna get any tonal differences from them either if the value is correct. Go for the Illinois filter caps, they're heavy duty and have better specs, and lower size.

(Although you might conceivably hear a difference in the cathode bypass caps, I doubt you would. I used Xicon capacitors for these positions.)
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Old 12-21-2006, 02:59 PM   #9
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Quote:
Originally Posted by call1800ksmyazz
I already made one Sempri


good call
this is going to be a good build

we're going to need clips
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Old 12-22-2006, 09:58 AM   #10
call1800ksmyazz
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Changed my mind around a bit! But its for the better.

I am now most likely going to do the 18watt TMB which has:
Two channels:
1. Channel 1 (Two Inputs): Normal Channel with Tone and Volume.
2. Channel 2 (One Input): TMB channel with Treble, Mid, Bass, Volume, and Master Volume.

It also has an extra preamp tube, so its:
3 12AX7s, 2 EL84s, and 1 EZ81 Tube Rectifier

And I know this kills me to tell you, and all, but I am going to get the Ceriatone Kit. BUT... I am ordering it with nothing assembled because they say that the board is assembled already. But I asked and they said they will just send all the parts. By getting the kit I can actually get a chassis and faceplates, and cheaper transformers. Shipping sucks though!

But yes, I broke down and had to have the TMB with the 2 channels and Master Volume... That way I can Jump both channels together with a cable.

So small change of plans, but will turnout much more useful...
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4uzz Face
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Bobtavia
Tube Reverb
Phase 45 Univibed
Modded VJ 1
18 Watt Plexi TMB
Modded VJ 2/3
VF-10 Amp
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Old 12-22-2006, 02:06 PM   #11
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Well, the new plan sounds good. This definately should be interesting to see the outcome of. Please, post some pics of the kit desembled when you get it.
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Old 12-22-2006, 02:09 PM   #12
call1800ksmyazz
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^-Definately. I take pictures of everything I build. Hopefully I will order it soon! I couldnt resist the two channel TMB and everything!
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ToneBender and SupaFuzz
Bobtavia
Tube Reverb
Phase 45 Univibed
Modded VJ 1
18 Watt Plexi TMB
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VF-10 Amp
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Old 12-22-2006, 02:44 PM   #13
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Quote:
Originally Posted by call1800ksmyazz
^-Definately. I take pictures of everything I build. Hopefully I will order it soon! I couldnt resist the two channel TMB and everything!


Well, it is for the best making a two channel TMB, so you made the right choice. Plus the extra pre-amp tube should help boost this amps sound, in a good way.
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Old 12-22-2006, 02:48 PM   #14
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sounds sweet...

what mods did you end up doing on the VJ??

and kits aren't too bad.... unless you get something that is pre assembled or something... We won't hold anything against you lol....
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Old 12-22-2006, 02:49 PM   #15
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You buying components with the kit?

You can order most of the stuff from Mouser, that saves you a heap of cash.
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Old 12-22-2006, 02:53 PM   #16
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Quote:
Originally Posted by That_Pink_Queen
You buying components with the kit?

You can order most of the stuff from Mouser, that saves you a heap of cash.


I don't think Kerry is buying components with the kit, I think that Kerry is buying the kit but desembled to use the components instead of buying some. I'm not too sure though.
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Old 12-22-2006, 03:22 PM   #17
call1800ksmyazz
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I am getting the components and everything from there, yes. Its much easier just to get that all with the chassis and all.
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Phase 45 Univibed
Modded VJ 1
18 Watt Plexi TMB
Modded VJ 2/3
VF-10 Amp
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Old 12-22-2006, 03:37 PM   #18
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So what sort of components are you getting?
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Old 12-22-2006, 03:47 PM   #19
call1800ksmyazz
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They are still Carbon Comp Resistors and Mallory or ZoSo Capacitors. Cant tell which ones. But the components are just as good and everything so I like it.
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4uzz Face
ToneBender and SupaFuzz
Bobtavia
Tube Reverb
Phase 45 Univibed
Modded VJ 1
18 Watt Plexi TMB
Modded VJ 2/3
VF-10 Amp
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Old 12-22-2006, 08:44 PM   #20
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how much do you think the whole thing is gonna cost??

Also is it gonna be a combo or a head??
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