background image

Step 9

 – Neatly route this twisted wire pair to the 9 pin preamp

tube socket on the opposite side of the speaker jacks (socket
V2). Trim wire to length, strip and tin these ends and tack them
in place to pins 9 and pins 4 and 5 of this tube socket (photo
6.24d).

Step 10 

– Untwist 1” from the cut ends of the twisted pair

wires. Strip and tin these ends and solder (along with other
wires) to pins 9 and pins 4 and 5 of the above preamp tube
socket (V2).

Step 11

 – Neatly route the twisted wire pair to the next 9 pin

preamp tube socket (V1). Trim to length, strip and tin these ends
and tack them in place to pins 9 and pins 4 and 5 of the first tube
socket (V1).

Step 12

 – Take two 100 ohm resistors and twist the two leads

together (photo 6.24e).

Step 13

 – Bend the end of the other two opposite leads of the

resistors away from each other (6.24e).

Step 14

 – Connect these two bent resistor ends along with the

filament wires to pins 9 and 4/5 (photo 6.24f) and solder.

Step 15

 – Trim the twisted ends of the resistors to half their length

and bend a small loop in these twisted ends.

Step 16

 – Cut a 3” length of black wire. Strip and tin both ends.

Step 17

 – Solder one end of this black wire to the loop of the two

resistors (photo 6.24f).

Step 18

 – For the standard tube socket mount, solder the other end

of this black wire to the solder tab mounted to the screw of the
preamp tube (photo 6.24f).  For shock mounting of preamp tube,
this black wire is soldered to the terminal connected to the corner
mount of the PC board (photo 6.24g).

Proceed to 6.25

Installing the AC Power Cord

Step 1

 – locate the cut end of the power cord

 

and strip off the outer

black PVC insulation approximately 7 1/2” from the end.

Step 2

 – With the three wires (white, green and black)

exposed, trim the white wire to a length of 5”, the green wire to
4” and leave the black wire at 7 1/2” length.

Step 3

 – Wrap the strain relief around the black PVC jacket of

the power cord approximately 1” from
where the stripped jacket begins.
Note the alignment of the strain relief
(photo 6.25a).

Step 4

 – With a pair of slip joint pliers,

firmly squeeze the strain relief into
place around the power cord then
grasp the strain relief and feed the stripped end of the power cord wires into the 

24     TubeDepot.com

The black PVC jacket of the power cord is thin and very easily cut.  Be very careful not to cut 
so deep as to accidentally cut the insulation of the inside wires.

CAUTION

6.25

photo 6.25b

photo 6.24e

photo 6.24f

photo 6.24g

photo 6.25a

Содержание Tweed 5E3+

Страница 1: ...sembly Manual Tweed 5E3 Instructions for Assembling with the Printed Circuit Board PCB with additional modification suggestions and recommended amp settings version 21 21 Aug 2017 Learn Build Build Pl...

Страница 2: ...their invaluable proofreading skills Copyright 2009 TubeDepot com 1958 Vanderhorn Drive Memphis TN 38134 877 289 7994 info tubedepot com REGARDING THESE BOOK MATERIALS Reproduction publication or dupl...

Страница 3: ...s Preparation and Assembly 12 Chapter 7 Final Assembly 28 Chapter 8 Testing 29 Chapter 9 Schematics and Parts Layout 32 Chapter 10 Cool Modifications 34 Appendix A How to Read Resistor and Capacitor C...

Страница 4: ...sic From blues to rock a billy from rock n roll to soul from country to jazz this amp is capable of holding its own across a wide swath of musical history and genres When it comes to walking into a gi...

Страница 5: ...assemble and we want you to enjoy building and playing them all Throughout this manual at key points in the construction we have annotated important steps with the below alerts For your safety and to...

Страница 6: ...Permanent marker fine tip Soldering iron 25W 40W 35W recommended TL WP35 Solder electronics safe 60 40 w rosin core recommended TS 24 6040 0027 Flux electronic liquid or paste must be safe for electr...

Страница 7: ...red red jewel 1 lamp 47 6 3 V lamp 4 jack 12A shorting Switchcraft input jacks 2 jack 11A open Switchcraft speaker output jacks 9 washer lock 3 8 lock washer for jacks and potentiometers 1 plug Switch...

Страница 8: ...stor 2 56K 1 2w carbon film bias resistor 2 220K 1 2w carbon film power tube grid biasing 1 2 7K 1 2w carbon film feedback resistor 1 47 1 2w carbon film feedback resistor 1 250 5w metal oxide power t...

Страница 9: ...masking tape on each side of cabinet opening photo 4 1a Step 3 Remove template page from manual appendix D1 and fold on indicated line Step 4 Place template on top of cabinet Properly align over the...

Страница 10: ...bolts install and tighten the KEPS nuts Step 6 With the nuts and washers tight I recommend using a small dab of fingernail polish to further guarantee that the nuts do not come loose or the lock washe...

Страница 11: ...5 Remove the backing from the second shielding tape strip and apply the tape to the back of the panel similar to the previous strip Align the edge of the tape along the bottom edge of the panel offse...

Страница 12: ...with this board With over sized traces and through hole plating this board will provide years of trouble free life Resistors Step 1 Gather all components together Separate the components by type resi...

Страница 13: ...0V electrolytic filter capacitor in positions C12 C13 and C14 These components have a polarity therefore they must be installed according to case and board markings photo 5 3b Proceed to 5 2 TubeDepot...

Страница 14: ...wire Tin the end of the exposed strands Insert the tinned end of this wire into the pad labeled G1 on the PC board top where the components are mounted and solder into place Measure and cut this wire...

Страница 15: ...a length of 3 from pad h Step 2 Repeat above for pads m n r s u v w and z except extend the wire to 3 5 for each Step 3 Repeat above for pad c and extend the wire to 5 Step 4 Repeat above for pads f a...

Страница 16: ...drill bit when drilling this chassis Go slowly through the steel at a low rotational speed A little drop of light oil at each drilling point helps too These practices will allow the metal to be cut cl...

Страница 17: ...the primarywires blk wht solid wht blk wht blk are nearest to the fuse holder Next connect your ac cords white neutral to the transformer s wht wht blk wire from your transformer then solder heatshri...

Страница 18: ...cator lamp with the lamp frame toward the chassis photo 6 6a Step 7 Tighten the nut to firmly secure the assembly to the chassis Step 8 Apply a drop of fingernail polish to the threads and nut to lock...

Страница 19: ...all the large 1 2 lock washer on each switch Step 4 Install the switches into the appropriate holes in the chassis with the solder terminals facing up photo 6 8b Step 5 Thread the hex nuts onto the ex...

Страница 20: ...ir of needle nose pliers to carefully bend the edges of the shield near the screw mounting holes in toward the socket photo 6 12b c and d Before installing these sockets into the chassis choose either...

Страница 21: ...ghten Step 7 Seal both nuts with fingernail polish photo 6 12h Step 8 Strip and tin ends of a 3 length of 20AWG black wire Step 9 Solder one end of this 3 wire to the above solder tab drawing 16 14c P...

Страница 22: ...ghten down the assembly drawing 6 14c Step 7 Install the second jack assembly into the bright channel chassis holes The jack with the 1M resistor goes into input 1 Tighten down the assembly Step 8 Str...

Страница 23: ...Controls Step 1 On the volume control nearest the input jacks normal volume wire a small piece of buss wire between the left terminal as looking at the pot from the rear to the common buss wire acros...

Страница 24: ...drawing 6 17b Step 10 Route the other end of this yellow wire to the C terminal on the bright volume control photo 6 17a Do not solder just yet Step 11 Install the second 2 1 2 piece by inserting one...

Страница 25: ...f the octal tube socket nearest the rectifier tube socket photo 6 20a Step 4 Connect the brown wire from the output transformer to pin 3 of the octal socket nearest the preamp tube photo 6 20a Step 5...

Страница 26: ...re from pad r Solder this wire to pin 6 of the preamp tube socket V2 photo 6 22a Step 4 Trim strip and tin the yellow wire from pad s Solder this wire to pin 1 of the preamp tube socket V2 photo 6 22a...

Страница 27: ...the rectifier tube socket photo 6 24c Step 6 With the twisted 18 AWG wire from step 1 unwind about 1 from the cut ends of this twisted wire Strip and tin these ends and connect to pins 2 and 7 of the...

Страница 28: ...lder one end of this black wire to the loop of the two resistors photo 6 24f Step 18 For the standard tube socket mount solder the other end of this black wire to the solder tab mounted to the screw o...

Страница 29: ...rip and tin the end of this red wire with yellow stripe coming from the power transformer Step 4 Connect this wire to the shared 8 solder terminal nearest the power switches and solder wires to this t...

Страница 30: ...ct wiring can lead to power transformer damage and or fire hazards The following instructions are for wiring the dual primary transformer for 120V mains Instructions for 240V mains is in the following...

Страница 31: ...TubeDepot com 27 drawing 6 30b drawing 6 30a...

Страница 32: ...d finger tighten the chassis against top of cabinet Step 5 Pick the face of the amp off of the floor and stand amp up right Step 6 With the nuts on loosely slide the chassis to the rear of cabinet awa...

Страница 33: ...smoke unusual odors or blown fuse If anything unusual occurs disconnect power immediately and review connections Step 9 With your multimeter on the 500 volt DC range connect the meter s black lead to...

Страница 34: ...move the AC power by disconnecting the AC power cord from the AC source Step 18 Install the two power tubes Step 19 Connect speaker to either output jack Step 20 Turn all volume and tone controls to m...

Страница 35: ...harmonica microphone and verify that the signal is coming from the speaker Step 27 If everything checks good turn off amp and install the back panel Step 28 Now the time has come to rock out your amp...

Страница 36: ...M Schematics 9 32 TubeDepot com Visit our website for higher resolution versions of these drawings schematics and diagrams...

Страница 37: ...Parts and Wiring Layout TubeDepot com 33 Visit our website for higher resolution versions of these drawings schematics and diagrams...

Страница 38: ...his gives a tight midrange response without being too bright 7 Change out 6V6 tubes for EL84 tubes by fabricating your own cover plate adapter and installing a 9 pin tube socket allows installing EL84...

Страница 39: ...ors graded by their values but also by their power ratings Power ratings are determined by how much heat power can be safely dissipated by the resistor Higher ratings are usually indicated by larger s...

Страница 40: ...lue Violet Gray White 0 1 2 3 4 5 6 7 8 9 Multiplier Color Multiplier Black Brown Red Orange Yellow Green Blue Silver Gold 1 10 100 1 000 10 000 100 000 1 000 000 01 1 Tolerance Color Tolerance None S...

Страница 41: ...2 001ufd 222 0022ufd 472 0047ufd Cornell Dubilier Silver Mica high quality high accuracy picofarad cap 1st line 250 5 direct value in pfd 250pfd tolerance 5 2nd line 500V SM voltage rating 500V batch...

Страница 42: ...d solder forming an alloy This connection is called an intermetallic bond and the two metals when properly soldered together act as if it they were one solid piece Importance of Proper Soldering Prope...

Страница 43: ...g soldered 9 Do not move the parts of the connection while the solder is hardening It is important that everything stays totally still until the solder has fully set because any movement in the parts...

Страница 44: ...e amp and any other object s especially around the rear of the amp It is a good idea to keep the amp as cool as possible Amplifier Feeding As with any tube amp the choice of tubes will affect the over...

Страница 45: ...l between the guitar and amp A vibrato or tremolo pedal in front is perfect for soulful coolness Run an overdrive pedal set clean in front of the amp Now crank up the pedal s output and hit the amp ha...

Страница 46: ...Templates Appendix D1 is the cabinet drilling template Appendix D2 is the chassis drilling template PCB and Turret Boards D Appendix D 42 TubeDepot com pg 43 pg 44...

Страница 47: ...just size as needed to get correct ratios Fold along this line Fold along this line TubeDepot com 43 Visit our website for higher resolution versions of these drawings schematics and diagrams The temp...

Страница 48: ...isit our website for higher resolution versions of these drawings schematics and diagrams The templates included in the manual may be incorrectly sized therefore it is important to measure prior to cu...

Страница 49: ...box is in operation the resistors will get very hot and the heat will be properly dissipated when in contact with the metal sides To improve this heat transfer the resistors can be epoxied to the side...

Страница 50: ...om the drawings below select the drawing that corresponds to the output transformer that came with your kit Wire your amp accordingly MOJO p n 773 and Classic Tone p n 40 18002 single 8 ohm tap black...

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