Robertson Tweed 5E3 PCB Spezifikationen

Assembly ManualTweed 5E3+Instructions for Assembling with the:- Printed Circuit Board (PCB)with additional modification suggestions and recommended am

holes and install the chassis mounting bolts.Step 10 – Test fit the chassis onto the bolts to make sure theholes are properly aligned.Step 11 – Remove

Step 6 – Solder these wires to the solder terminals of the speaker;the white wire to the “+” terminal and the black wire to the “-”terminal (photo 4.3

Here is where good soldering skills and attention to detail will pay off. By following these directions, you should have no trouble in completing

Step 5 – Install a 2.7K (2,700) ohms / ½ watt resistor (red,violet, red, gold) in position R23.Step 6 – Install a 47 ohms / ½ watt resistor (yellow, v

Installing Feedback Header / Jumper J1Step 1 – Locate position J1 on the board. It is identified by thethree small pads next to the printed word“feed

5.4.2 Red Wires (Circuit B+ and Preamp Tube Inputs)Step 1 - Strip back the insulation from the end of the red wire1/8” and tin the end of the exposed

Drilling Mounting Holes for the Printed Circuit Board (PCB) There are two acceptable methods fordetermining where to drill the holes formounting th

(photo 6.1c).Step 4 – Place the circuit board on the chassis. Align one ofthe short edges of the circuit board against the mark on themasking tape an

Proceed to 6.4Mounting the Output Transformer Step 1 – Twist the primary wires together (red, brown and blue).Step 2 – Twist the secondary wires

Mounting the Fuse Holder Step 1 – Remove the nut from the fuse holder and insert thefuse holder into the corresponding chassis opening. The rubbe

This manual was developed and published by:TubeDepot.comMemphis, TNWritten by:Robert HullEdited by:Mary KlaebelDesign and artwork by:Robert HullMary K

Step 3 – Place the flat washer on the outside of the chassisand then install and tighten the hex nuts with a 1/2” socket.Step 4 – Locate the output tr

Step 4 – Insert a #6 x 1/4” screw into the mounting hole of theV2 socket nearest the chassis edge. Secure this screw with a#6 KEPS nuts.Step 5 – Bend

Step 4 – Remove the masking tape and finish tightening thenuts down to the board.Step 5 – Locate the 3” wire attached to the V1 tube socketsolder tab.

Wiring the Ground Buss Step 1 – With a small knife, scratch a spot through the yellowplated coloration on the back of each potentiometer approximately

the middle terminal of the normal channel volume control(photo 6.17a and drawing 6.17b).Step 4 – Strip and tin the end of the yellow wire coming fromp

transformer. Connect these two wires to pins 8 and 2 (topopening of pins) of the rectifier tube socket. Solder pin 2 butdon't solder pin 8 just y

coming from pad “p”.Step 14 – Twist these two wires tightly together and route thewires along the bottom edge of the chassis.Step 15 – Solder the wire

Step 5 - Trim, strip and tin the red wire from pad “y”. Solderthis wire to pin 2 of the preamp tube socket V1 (photo 6.23a ).Step 6 - Trim, strip and

Step 9 – Neatly route this twisted wire pair to the 9 pin preamptube socket on the opposite side of the speaker jacks (socketV2). Trim wire to length,

corresponding hole in the chassis.Step 5 – While still grasping the strain relief with the pliers,guide the strain relief into the chassis hole. Firml

pagePreface and Tweed 5E3 overview ... ivChap

Dual Primary Power Transformer Installation Instructions. Choose the installation appropriate for your mains supplyvoltage (120V or 240V).Wiring

TubeDepot.com 27drawing 6.30bdrawing 6.30a

Installing the Knobs Step 1 – Rotate the shafts of the controls on the front of amp fully counter clockwiseStep 2 – with a small screwdriver, loo

You are almost finished. And although the first temptation is to plug in the amp and turn it on, I recommended taking the time to review all of your w

(B+). The voltage here should be something close to +460 +/-10 volts (photo 8.1b).Step 10 – Remove AC powerby disconnecting the ACpower cord from the

carefully connect the meter's black lead to chassis ground andthe red lead to the positive side of C10. The voltage hereshould read close to +22

MSchematics932 TubeDepot.comVisit our website for higher resolution versions of these drawings, schematics and diagrams.

Parts and Wiring LayoutTubeDepot.com 33Visit our website for higher resolution versions of these drawings, schematics and diagrams.

Once you have the amp working and sounding good, here are a few ideas to “shape” the tone to suite your tastes.1. Reduce low frequency muddiness wh

Resistor and Capacitor Codes This project uses different types of resistors and capacitors. The diagrams below will assist you in locating and iden

Short History of the Tweed Fender Deluxe The tweed deluxe amplifier has become the “go to” amp when looking for maximum portability and raw, unco

Resistor Value Color Codes36 TubeDepot.com1st DigitBlackBrownRedOrangeYellowGreenBlueVioletGrayWhite01234567892nd Digit Color Digit Color

How to Read Capacitor Value Codes This project uses several different kinds of capacitors. Some of these capacitors have their values and voltage r

Soldering Hints Anyone working in electronics should learn how to solder well. Thankfully it isn't hard, it justtakes practice and having the

4. When applying the soldering iron to a connection to bemade, it is important to lay the tip in such a position thatthe maximum surface area of the t

Amplifier Care, Feeding, and ApplicationsNow that your amp is finished, here are a few hints to keep it up and running and you safe and happy:– Only p

Applications The laboratory environment is nice, but field experiencesbetter determine success. Therefore the true test of a good amp is how well i

TemplatesAppendix D1 is the cabinet drilling template …...Appendix D2 is the chassis drilli

APPENDIX D-1Make sure the printer is set to print 100% original size to insure a correctly sized template. Adjust size as needed to get correct ratio

44 TubeDepot.comVisit our website for higher resolution versions of these drawings, schematics and diagrams.The templates included in themanual ma

Test EquipmentLoad Box The following load box can be used between an amplifier and a speaker to reduce the volume of the amp and still get distortio

!!! Read these safety precautions before continuing !!! ALL tube amplifiers contain LETHAL VOLTAGES, often several hundred volts which WILL leave bu

Output Transformer Wiring Options There are different Tweed 5E3+ style output transformers we source for this kit, all of which have slightly diff

As with any construction project, there are certain tools and supplies that are recommendedto complete the project. These are tools and supplies no

It is important to review all the parts that came with your kit. The list below is what you should have received to complete your kit. If you fin

2 screw, zinc plated 8-32 x 1/4", phillips pan head output xfmr mounting1 screw, zinc plated #6 philips pan head back panel ground connection2 s

This chapter deals with preparing the cabinet for installation of the completed chassis. But first, we need to take inventory of the parts that cam