Mod K-MOD102 Instructions Manual Download Page 13

Connect T3 components:

1) Connect the 6.8K resistor from T3(2) to the “bass” pot’s cold lug, but do not solder at the cold lug 
side, yet.

2) Connect the .047 

µ

F cap from T3(1) to the “bass” pot’s cold lug.  Now solder at the “bass” pot’s 

cold lug side.

3) Connect the .1 

µ

F cap from T3(1) to the “bass” pot’s wiper lug, but do not solder at the wiper lug 

side, yet.

4) Connect a short length of white wire (2.25") from the “bass” pot’s wiper lug to the “treble” pot’s 
cold lug.  Now solder at the “bass” pot’s wiper lug. 

5) Connect a 100K resistor from T3(1) to T4(5).

Connect T4 components:

1) Connect the 250 pF cap from T4(5) to the “treble” pot’s hot lug.

2) Connect a 100K resistor from T4(5) to T4(4).

3) Connect a 22 

µ

F 50V cap with negative end to T4(1) and positive end to T4(3).

4) Connect a 1.5K resistor from T4(1) to T4(3).

5) Connect a short length of white wire (2.25") from T4(5) to V1(1). 

6) Connect a short length of white wire (2.25") from T4(3) to V1(3). 

Connect T5 components:

1) Connect a short length of white wire (2") from the T5(1) to T5(5).  Use the lower terminal holes so 
that the wire does not obstruct your mounting of other components.

lower terminal holes

2) Connect a 22 

µ

F 50V cap with negative end to T5(5) and positive 

end to V1(8), but do not solder the connection at V1(8), yet.

3) Connect a 1.5K resistor from T5(5) to V1(8).  Now solder the connection at V1(8).

4) Connect a 100K resistor from T5(2) to T5(3).

5) Connect a short length of white wire (1.5") from T5(3) to V1(6).  Using the lower terminal hole of 
T5(3) might make things easier. 

6) Connect the .022 

µ

F cap from T5(3) to T6(3).

Connect T6 components:

13

1) Connect the 1K 1W resistor from T6(5) to V2(9).

2) Connect the 5.6K resistor from T6(3) to V2(2).

3) Connect the 220K resistor from T6(3) to T6(1).

Summary of Contents for K-MOD102

Page 1: ...lumes MOD 102 GUITAR AMP KIT K MOD102 F VOLUME 0 1 2 3 4 5 6 7 8 9 10 TREBLE 0 1 2 3 4 5 6 7 8 9 10 ON OFF MOD 102 TUBE AMP KIT BASS 0 1 2 3 4 5 6 7 8 9 10 The MOD102 F is the foreign Non USA version...

Page 2: ...Connect Front Mounted Components 14 Section 6 Connect Rear Mounted Components 14 Section 7 Finish Connecting the Transformer and Power Supply Wires 15 Section 8 Connect the Tube Filament Wiring 15 Sec...

Page 3: ...Use 16 AWG speaker cable to connect from the amplifier to your speaker cabinet The web site www modkitsdiy com has been set up to help answer your questions after you have thoroughly read through the...

Page 4: ...nuts 4 10 lock washers 4 TUBES Description Quantity 12AX7 ECC83 1 6BQ5 EL84 1 TRANSFORMERS Description Quantity Power Transformer 369EX 1 Output Transformer P T31 1 4 CAPACITORS Description Quantity...

Page 5: ...en plugged in at one time may have high voltage present ON STANDBY The one hand rule pictured below is a safety precaution for working on an amp that is plugged in or could potentially have high volta...

Page 6: ...e 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...

Page 7: ...ings and then cutting it with your wire cutters at a length that will give it a little bit of slack after stripping off the insulation and soldering It is important not to make the wires too long Be c...

Page 8: ...Component Mounting Bracket 4 Step 3 Mount the 9 pin miniature tube socket for the 12AX7 with its tube shield Drawing 2 shows where to mount the 9 pin miniature socket V1 Make sure that pins 1 9 face t...

Page 9: ...kaging Drawings 2 3 show where to mount the power transformer A Use the first page of the Assembly Drawings Primary Wiring Diagrams to determine which primary wires you will need to use for your count...

Page 10: ...rds the bottom opening of the chassis box Once the lamp holder is mounted you may screw in the bulb and then the jewel Step 2 Mount the Power Switch Drawing 4 shows where to mount the power switch Be...

Page 11: ...Solder Components to Their Terminal Strip Locations Please see page 6 Soldering Tips if you are new to making solder connections Drawing 6 shows each passive circuit component and its respective locat...

Page 12: ...gth of white wire about 1 5 from T1 3 to T1 1 When connecting the wire you want to strip about of insulation off of each end to wrap around terminals 2 Connect a short length of white wire about 1 5 f...

Page 13: ...t a 1 5K resistor from T4 1 to T4 3 5 Connect a short length of white wire 2 25 from T4 5 to V1 1 6 Connect a short length of white wire 2 25 from T4 3 to V1 3 Connect T5 components 1 Connect a short...

Page 14: ...e lamp holder It does not matter which green wire connects to which lug Be careful to leave the upper lug holes open for a future connection to the tube filaments 2 Connect the N Wire s for your count...

Page 15: ...Line L also known as Hot wire to the central lug on the fuse holder 5 Connect the power cord s Earth E also known as Ground wire to T2 1 SECTION 7 Finish Connecting the Transformer and Power Supply Wi...

Page 16: ...r remove their backing and stick them to the cover to serve as feet A good place to put them would be near each self tap screw Put the tubes in their sockets Attach the Chassis Cover and Rubber Bumper...

Page 17: ...the labels is sectioned into eight pieces to help you cut out a nice circular shape for placement over its respective chassis hole ON OFF ON OFF MOD 102 TUBE AMP KIT BASS BASS 0 1 2 3 4 5 6 7 8 9 10...

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