Amp Overview

2013 Releases not covered here. If anyone wants to add them you are welcome!

(Credit bartdevil_metal)
As one of the only budget valve amps that has a substantial amount of gain on tap, the Valveking is one of the most popular amps with UG’ers on a budget. The purpose of this thread is to discuss possible modifications, share EQ settings, clips and generally learn from each others’ mistakes on how to get the best tone out of this range of amplifiers. So without further ado:

The Range
Valvekings come in three sizes:

50w 112 Combo

external image VALVEKING112_2_inpage.jpg

This is the best value out of the three, as it cost less to modify than the 212 (with regard to speakers/valves etc.). However, there are a couple of control losses – both the 212 and Head version have a presence and resonance dial; this is not present on the 112 combo. Be aware that there are now 2 versions of the VK112 the newer one has the C149-R173 circuit modified to brighten the amp and the values of these components have changed and some more have been added. See the uploaded schematics for info. There is also now an internal cable with a plug from the Return half of the send/return loop circuit to a plug on the power amp board instead of a circuit board trace (not shown in the schematic). The best guess to tell the difference is if your amp was made after say Feb or March of 2011.
Note: The stock speaker switches off when an extension cabinet is used. ( See Cosmetic Mods )

100w 212 Combo

external image 7042.jpg

Bigger and slightly louder than the 112 combo, the 212 has double the wattage on tap and so has more headroom for the average metalhead (who usually enjoy an insane amount of preamp distortion). It’s usefulness is limited however; The head version will end up being better value if you carry out the mods because you can buy a decent cab outright and even use it with other amps.
Note: The stock speakers stay on with an extension cab unless the stock speakers are unplugged from the back of the amp
( See Cosmetic Mods )

100w Head

external image 1518_1213862087.65916.jpg

The most portable and adaptable of the three. The head can be used with any cab (obviously as it has an ohmage selector of 4/8/16 ohms) and incorporates the presence and resonance dial that is lacking on the 112 version. It also shares the headroom and loudness of the 212 combo.

Royal 8

external image p42260.jpg

Although the Royal 8 doesn't sound like the rest of the Valvekings, it is part of the line so we have included it here. It is a one channel 5w valve amp with a volume knob, tone knob and gain. Because it is such a low wattage combo it doesn't have much gain on tap (barely enough for Oasis) although with a nice boost this amp can sing for blues and do the Oasis crunch sound pretty well. Pretty much an amp for those that crave that poiwer valve breakup at sane volumes, but you're going to need a distortion pedal for anything heavier than Lynyrd Skynyrd.

Peavey Valveking and Windsor Guitar Footswitch
Not a necessity at around $40, but it gets the job done.
Get the most out of your Peavey ValveKing or Windsor amp with this 2 button footswitch. Allows you to select amp channel and engage boost. LEDs indicate status.

(Credit IbanezPsycho)

Schematics can be found on this site, along with a lot of other amps if you're interested:

(Credit 311ZOSOVHJH)
Specifications and Features

212 100w Combo (Head is similar, but without speakers)
100W all-tube
Texture variable Class A/B simulation control
2 footswitchable channels
EQ and volume for each channel
Footswitchable gain/volume boost on lead channel
2 - 12" ValveKing speakers
Reverb with level control
Buffered Serial effects loop
Resonance and presence controls
Dual speaker jacks in parallel
4 - 6L6GC power amp tubes
3 - 12AX7/ECC83 preamp tubes
4, 8, or 16 ohms
26-1/2"W x 20-3/5"H x 11-1/10"D (212 combo)
68-1/2 lbs. (212 combo)
21-1/3"W x 18-1/4"H x 10-1/4"D (100W head)
44-1/2 lbs. (100W head)

112 50W Combo
50W all-tube
Texture variable Class A/B-A simulation control knob
2 footswitchable channels (as well as footswitchable gain boost on lead channel)
Separate EQs per channel
1 - 12" Valveking speaker
Reverb with level control
Buffered Serial Effects Loop
Resonance button (Loose/Tight)
External Speaker jack (16ohm minimum)
2 - 6L6GC power amp tubes
3 - 12AX7/ECC83 preamp tubes
16 Ohms only
21-2/5"W x 18-1/4"H x 10-1/4"D
44-1/2 lbs.

Royal 8
True Class A amp uses EL84/6BQ5 output tube and one 12AX7/ECCC83 preamp tube with no negative feedback in the power amp
5 watts into 8 ohms
Gain and master volume
Tone control
8-inch speaker
High and low gain inputs
5W (RMS) into 8 ohms
13.25" H x 16.0" W x 8.25" D
21.1 lbs.

Peavey Valveking and Windsor Guitar Footswitch
Two-button footswitch with LEDs
Switch options are channel select or lead volume/gain boost
Includes 15 foot cable with right angle 1/4" stereo connector
Weight: 1 lb
Width: 7.875"
Depth: 4.125"
Height: 2.062"

(credit Fretilla)
"As results of my investigation on my VK112, I think the tone stack of the VK112 (and I think the other VKs also) is the same as the Marshall tone stack, but with different resistor and cap values. But these values give you a very similar curve. A major difference to marshall amps, is that the VK112 has 6L6GC power tubes. They sound different compared to EL34s used in almost all marshall amp. But many amp give you the choice, and run with 6L6GCs, and EL34s also. It depends on you. Other things that shape your sound are, the cab/combo quality, structure, and the speaker. Cab/combo quality and structure are hard to change, but the speaker could be changed easy. That's what I'll try next week. Another plan for the future to use ECC83 tubes in the preamp. I don't really like the VK112s distorted sound with these stock speakers. I think these are cheap all-round speakers, to give you an average sound on the clean channel - which has a Fender-like, but not exactly the same tone stack, but the cap and resistor values give you a Fender sound curve, and an average sound on the dirty channel. I think that's the issue with the stock speaker."