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Mod Wave, Instructions Manual, Page: 34 / 34

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Mod Wave Instructions Manual Download Page 34

1M

TR1

WHT

BLK

RED

RED

GRN

GRN

L

E

N

4

5

9

V3

22µ

+

A

120VAC

60 HZ

+

+

C

10K

10K

PWR

22µ

+

1K

B

1N4007

100

100

4

5

9

V2

4

5

9

V1

12AX7

12AT7

12AX7

P-TF47609

1

2

3

6

7

8

+

220K

25

µ

1.5K

500p

BLU

RED

BLK

GRN

V2

25

K

Ω

8Ω

1

2

3

220K

1.5K

1

µ

V3

.1

µ

IN

P

U

T

 C

O

IL

1

0 

Ω

25

7

0 

Ω

O

U

T

P

U

T

 C

O

IL

9AB3C1B

A

1

2

3

100K

+

1.5K

25

µ

C

6

7

8

100K

2.2K

.01

µ

10KL

DWELL

100K

V1

V1

1

2

3

100K

V4

B

2M

2M

.047

µ

.1

µ

B

ON

OFF

Foot

Switch

OUT

IN

244

VAC

6.4

VAC

3.2 VAC

330 VDC

320 VDC

271 VDC

255 VDC

182 VDC

1.3 VDC

135 VDC

157 VDC

1.3 VDC

178 VDC

1.7 VDC

316 VDC

5.8 

VDC

10K

A

OFF

ON

119

VAC

123 VDC

246 

VDC

6

7

8

25

µ

V3

.1

µ

B

100K

+

1.5K

500KL

.01

µ

4

5

9

V4

12AX7

10K

470K

1Ω

5W

PWR

GUITAR

IN

220p

470K

GUITAR

OUT

P(A)

T(2)

T(1)

P(B)

T(2)

T(1)

255 VDC

271 VDC

271 VDC

176 VDC

1.3 VDC

263 VDC

(1)

.16 VAC

AC voltages measured from strat neck pickup position, strumming an open E chord with 
10KL dwell pot set to 12:00 = 5kΩ and 500KL reverb pot set to 9:00 = 60kΩ. Test point 5 
measured from Blue to Red, all other test points measured with respect to ground.

REVERB

Copyright © 2014 by modkitsdiy.com

“The Wave” (K-MOD103) 

Schematic

www.modkitsdiy.com

PHONO IN

PHONO

OUT(1)

PHONO

OUT(2)

1A

Fast Blo

P-TF22921

Reverb

Switch

Reverb

Switch

22µ

22µ

V1 = 12AX7
V2 = 12AT7
V3 = 12AX7
V4 = 12AX7

TR2

60kΩ

5kΩ

HV

320 VDC

(2)

.17 VAC

(3)

.10 VAC

(4)

.62 VAC

(5)

23 VAC

(6)

.48 VAC

(7)

.01 VAC

(8)

.70 VAC

(9)

.07 VAC

(10)

.13 VAC

(11)

.13 VAC

DC voltages were measured with respect to ground.

(D)

(E)

(F)

(G)

(H)

(I)

(J)

(K)

(L)

(M)

(N)

(O)

(P)

(Q)

Summary of Contents for Wave

Page 1: ...level of output reverberations from the tank The Wave K MOD103 www modkitsdiy com Features Rack Mountable requires 3U of rack space Line Level RCA connections 1 Phono In and 2 paralleled Phono Outs Footswitch Jack cuts signal to the reverb tank input only allowing the last reverberations to decay fully Use a standard one button latching footswitch box with a mono plug Reverb Switch provides an ins...

Page 2: ...tch p 10 Step 3 Mount the output jack p 10 Step 4 Mount the reverb on off switch p 10 Step 5 Mount the 500K reverb and 10K dwell pots p 10 Step 6 Mount the input jack p 10 Step 1 Connect the output transformer TR2 wires p 11 Step 2 Connect the power transformer TR1 wires p 11 Step 3 Connect the power switch p 11 Step 4 Connect the power cord receptacle p 11 Step 5 Connect the filaments p 12 Step 6...

Page 3: ...working with an amp that is connected to power or may have voltage present Any amp that has been plugged in at one time may have high voltage present The one hand rule pictured below is a safety precaution for working on an amp that is plugged in or could potentially have high voltages present Using alligator clips with your DMM clip the ground side to the chassis and use the other side to probe a...

Page 4: ...ke a good solder joint Take your time with each connection and make sure that all components are connected and will remain connected if your project is bumped or shaken Bend the component lead or wire ending and wrap it around the connection point Make sure it is not too close to a neighboring component which could cause an unintended connection 2 Wrap the component lead so that it can hold itself...

Page 5: ...ed to make it easier when making connections to the tube socket pins You do not need to tin the ends of solid core wire before connecting Stripping wire tinning wire and soldering Throughout these instructions you will be told to strip and tin numerous lengths of wire Unless noted otherwise cut the wire to the length stated in the instructions Then strip of insulation off each end Twist each end o...

Page 6: ...oating With the terminal strips used in this kit you might want to connect the wires to the lower holes and components to the upper holes Doing this can make it easier to change components for modification 5W 1K 5 W 1 K Wires connected to lower terminal holes Components connected to upper terminal holes Step 1 File the chassis holes Except for the holes circled in the drawings on this page and the...

Page 7: ...gers 3 4 8 5 8 Step 3 Mount the 9 pin miniature tube sockets and shields Drawings 2 3 show where to mount the four 9 pin miniature sockets Make sure that pins 1 9 are away from the rear edge of the chassis Except for the locking lugs use 4 hardware 3 1 P 0401H 7 4 Shield bases are mounted on top of the tube sockets before inserting the 4 mounting screws through the top of the chassis Tube Socket N...

Page 8: ...ere to mount the power transformer Insert each of the six wires through their respective grommets as listed on Drawing 2 Use 10 hardware to fasten the transformer to the chassis Make sure to use the long 10 screws P TF47609 length 2 2 2 Step 7 Mount the terminal strips There should be nine terminal strips remaining Drawing 3 shows where to mount each one Be sure to mount them with the same orienta...

Page 9: ...embled SECTION 2 Mounting of Rear Components Please refer to assembly Drawing 4 Step 1 Mount the power cord receptacle Mount the power cord receptacle in the square hole as shown in Drawing 4 so that the earth ground terminal is positioned closest to the chassis opening Except for the locking lug use 4 hardware Make sure that the locking lug is mounted to the same screw and in the same orientation...

Page 10: ... output jack Mount the output jack in the next 3 8 hole over from the lamp holder as shown in Drawing 4 SLEEVE TIP SHUNT Step 4 Mount the reverb on off switch Mount the reverb on off mini toggle switch in the next 1 4 hole over from the output jack as shown in Drawing 4 Chassis Lock Washer Hex Nut Hex Nut Flat Washer Step 5 Mount the 500K reverb and 10K dwell pots Drawing 4 shows where to mount th...

Page 11: ... Twist the two green wires together and cut this twisted pair of wires to a length of about 4 Connect one of the wire ends to T1 1 and the other to T1 3 Step 3 Connect the power switch Connect the 1Ω 5 watt resistor from the power switch terminal T Off on the B side of the switch to the nearest locking lug as shown in Drawing 5 This will drain filter cap voltage when power is turned off Strip and ...

Page 12: ... 9 Solder the connections at V4 now Twist these two wires together and route them along the chassis surface in a path similar to what s shown on Drawing 5 Connect one of the wire ends to V3 pin 9 and the other wire end to both V3 pins 4 and 5 Do not solder these connections yet Cut two more 5 lengths of the green cloth covered wire Connect one of these wires to V3 pin 5 and the other wire to V3 pi...

Page 13: ...p wire and connect it from V2 pin 2 to the footswitch jack s tip lug Warning Be very careful not to burn the insulation of nearby wires with your soldering iron Strip and tin a 3 length of blue hook up wire and connect it from V2 pin 7 to T8 7 Connect both a 1 5K resistor and 25µF capacitor from V2 pin 3 to the locking lug as shown in Drawing 5 Make sure to connect the positive end of the capacito...

Page 14: ...outer insulation is very thin so apply your wire strippers around the wire very lightly while gently rotating the wire to create a ring around the insulation The goal is to pull off of the outer insulation without cutting into the shielding beneath it Pull the shielding away from the inner insulation with your fingers Push the shielding back down toward the outer insulation and twist the strands i...

Page 15: ...actually measure 2 or 3 ohms but that s close enough to zero With the pot turned all the way up you should measure about 500KΩ If you measured close to 0Ω with the 500KL pot turned all the way up the wire has a short and you will need to prepare a new shielded wire being careful not to overheat the shielding or inner conductor so that the insulation is compromised Measure resistance between T10 1 ...

Page 16: ...aining tube socket wires Strip and tin a 3 length of blue hook up wire and connect T8 6 to V1 pin 6 Strip and tin a 3 length of blue hook up wire and connect T8 3 to V1 pin 1 Strip and tin a 7 length of blue hook up wire and connect T6 3 to V3 pin 6 Strip and tin a 6 length of blue hook up wire and connect T6 6 to V3 pin 1 Strip and tin a 2 length of blue hook up wire and connect T4 3 to V4 pin 2 ...

Page 17: ...ng lug and the positive end to the terminal strip Step 3 Connect the phono in components Connect a 470K resistor from T9 1 to T9 3 Connect the 220pF capacitor from T9 3 to T9 4 Step 4 Connect the V1 components Connect the 1M resistor from T10 1 to T10 2 Connect a 1 5K resistor and a 25µF capacitor from V1 pin 3 to the nearest locking lug Make sure you connect the negative end of the capacitor to t...

Page 18: ... to T4 2 Connect the 047µF capacitor from T4 3 to T4 1 Connect the remaining 100K resistor from T5 4 to T5 2 Connect the remaining 1µF capacitor from T5 1 to T5 4 SECTION 6 Assemble and Fasten the Cover Plate 18 At this point the internal circuitry should be complete Take the time now to carefully double check your connections and make sure they match up with Drawing 6 Step 1 Mount the rubber feet...

Page 19: ...ch the soldering iron to the base of the RCA plug only do not apply the soldering iron over the wire s insulation 5 Measure resistance between the sleeve and the tip of this RCA plug with an ohm meter to make sure they are not accidentally shorted together Tip Sleeve Base Cut a 12 length of 22 AWG tin braided wire and follow the steps below 6 Repeat the same process to add another RCA plug to the ...

Page 20: ...he tubes into their respective sockets as indicated on Drawing 7 There is only one 12AT7 a k a ECC81 and it should be plugged into socket V2 All the other tubes are 12AX7 s a k a ECC83 Plug the detachable power cord into its receptacle on the rear panel Note The Wave is capable of delivering extreme levels of reverb It is best to keep the Wave off of your speaker cabinet if you plan to play at lou...

Page 21: ...8 6 Reverb Tank Mounting Reverb Tank Mounting Reverb Tank Mounting Reverb Tank Mounting 6 6 6 6 6 6 6 6 3 8 3 8 Tank Out Tank In 6 6 6 6 Grommet 1 Grommet 2 Grommet 3 P 0201H P 0301H P 0601H02 P 0401H P 0601H02 S H112 S H112 P 0802H P 0401H P 0501H P 0301H S H112 10 10 10 10 ASSEMBLY DRAWINGS ...

Page 22: ...4 4 4 4 4 4 TR2 6 Reverb Tank Mounting Reverb Tank Mounting Reverb Tank Mounting Reverb Tank Mounting 6 6 6 6 6 6 6 6 3 8 3 8 Tank Out Tank In 6 6 6 6 Grommet 1 Grommet 2 Grommet 3 P 0201H P 0301H P 0601H02 P 0401H P 0601H02 S H112 S H112 P 0802H P 0401H P 0501H P 0301H S H112 10 10 10 10 P TF22921 8 8 1 Green 2 Green 3 Red 4 Red 1 White 2 Black P TF47609 ...

Page 23: ...Reverb Tank Mounting 6 6 6 Tank Out Tank In 6 6 P 0201H P 0301H P 0601H02 P 0401H P 0601H02 S H112 S H112 P 0401H P 0501H P 0301H S H112 10 10 10 10 P 0401H 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 Inside of the Chassis P 0802H T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 OUT IN Underside Reverb Tank Outline ...

Page 24: ...10KL 500KL 4 4 L N E Drawing 4 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 V1 V2 V3 V4 S H112 Output Input ...

Page 25: ...Blk Grn Blu Red Red Red Wht Wht A B T On T Off P T On T Off P Blk Grn Grn 5W 1Ω 2 x 6 2 x 12 2 x 5 2 x 5 2 x 5 100 100 25µF 25V 1 5K A B T Off P T Off P T On T On 220K PHONO IN SLEEVE TIP SHUNT SLEEVE TIP SHUNT SLEEVE TIP PHONO OUT 1 PHONO OUT 2 Hot Wiper Cold REVERB DWELL Hot Wiper Cold Footswitch 1 2 3 1 2 3 4 5 1 2 3 4 5 6 1 2 3 4 1 2 3 4 1 2 3 4 5 6 1 2 3 4 5 6 7 8 1 2 3 1 2 1 2 3 4 ...

Page 26: ... 25V 1 5K A B T Off P T Off P T On T On 220K PHONO IN SLEEVE TIP SHUNT SLEEVE TIP SHUNT SLEEVE TIP PHONO OUT 1 PHONO OUT 2 Hot Wiper Cold REVERB DWELL Hot Wiper Cold 10K 1K 10K 22µF 450V 22µF 450V 22µF 450V 22µF 450V 220 500V 4 7 0 K 1M 25µF 25V 2 2K 01µF 630V 500 500V 10K 100K 100K 25µF 25V 1 5K 1 5K 220K 1 0µF 1 5K 1µF 630V 100K 10K 100K 1 µ F 6 3 0 V 470K 2M 2M 047µF 630V 100K 1µF 630V 1 2 3 1 ...

Page 27: ...ibuted by CE Distribution www cedist com TM OUT IN 1 9 2 3 4 5 6 7 8 1 9 2 3 4 5 6 7 8 1 9 2 3 4 5 6 7 8 1 9 2 3 4 5 6 7 8 Drawing 7 TOP Outside of the Chassis V1 V2 V3 V4 TR1 Tank Out Tank In P TF22921 P TF47609 12 14 12AX7 ECC83 12AT7 ECC81 12AX7 ECC83 12AX7 ECC83 ...

Page 28: ...unt W SC 12A 2 SLEEVE TIP SHUNT chicken head knobs white P K300W 2 10kΩ dwell potentiometer R V38 10KL 1 500kΩ reverb potentiometer R V38 500KL 1 DPDT Mini Toggle Switch P H541 1 P H35 146 1 power switch DPDT P L115 1 jewel lens red P L124 P 1 lamp holder P 47 1 bulb lamp bayonet base fuse 1A Fast Blow F ZF010 1 P H9107 4 rubber feet 6 6 6 P RMOD 9AB3C1B 1 spring reverb tank 16 P ST9 600 4 9 pin m...

Page 29: ...een 20 AWG solid core cloth covered wire K P01 0006 BLU 16 ft blue 22 AWG stranded hook up wire S W111 4 ft tin braid 22 AWG stranded wire S W112 3 ft RG 174 U shielded 26 AWG stranded wire 100 Ω Resistor W R A100 2 brown black brown gold 100 100kΩ Resistor W R A100K 5 brown black yellow gold 100K 10kΩ Resistor W R A10K 4 brown black orange gold 10K 1kΩ Resistor W R A1K 1 brown black red gold 1K 1...

Page 30: ...length S HS1032 12 6 10 screw length 10 lock washer 10 hex nut S HW10 4 10 hex nut S HS832 12 2 S HHN832 2 S HST8 38 4 8 screw length S HLW8 2 8 lock washer 8 hex nut 8 self tap screws S H112 7 6 locking lug S HLW4 6 S HHN440 10 S HS440 38 10 4 screw 3 8 length S HS632 38 13 S HLW6 10 S HHN632 13 6 screw 3 8 length 6 hex nut 6 lock washer 4 hex nut 4 lock washer TOOL LIST Wire Strippers Needle Nos...

Page 31: ...age measurements to help locate problem areas Please keep safety first and always remember the one hand rule DC Voltage Measurements First make sure all of your DC voltage measurements are in order Use the layout drawing or schematic to find the locations of the DC voltage measurements listed below Your measurements should be in the same ballpark but do not expect to measure the exact same values ...

Page 32: ...no Plug Jack Once you are able to measure the output signal from your guitar directly plug the guitar into the input jack of your kit and use the AC test points to measure the guitar signal along the signal path Start with test point one and move along in order You should be looking to identify the last test point where the signal seems normal and the first test point where the signal seems unusua...

Page 33: ... 22µF 450V 22µF 450V 220 500V 4 7 0 K 1M 25µF 25V 2 2K 01µF 630V 500 500V 10K 100K 100K 25µF 25V 1 5K 1 5K 220K 1 0µF 1 5K 1µF 630V 100K 10K 100K 1 µ F 6 3 0 V 470K 2M 2M 047µF 630V 100K 1µF 630V 1 2 3 1 2 3 4 5 1 2 3 4 5 6 1 2 3 4 1 2 3 4 1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 7 8 1 2 1 2 3 4 Footswitch 1 2 3 4 5 5 6 7 8 9 10 11 AC voltages were measured from a strat in neck pickup position strumming an o...

Page 34: ...µ 4 5 9 V4 12AX7 10K 470K 1Ω 5W PWR GUITAR IN 220p 470K GUITAR OUT P A T 2 T 1 P B T 2 T 1 255 VDC 271 VDC 271 VDC 176 VDC 1 3 VDC 263 VDC 1 16 VAC AC voltages measured from strat neck pickup position strumming an open E chord with 10KL dwell pot set to 12 00 5kΩ and 500KL reverb pot set to 9 00 60kΩ Test point 5 measured from Blue to Red all other test points measured with respect to ground REVER...

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