Related Manuals for Trinity Amps Tramp
Summary of Contents for Trinity Amps Tramp
- Page 1 The Trinity Amps Tramp Amp Builders Guide For the sole personal use of Trinity Amps Tramp Customers. Dec 2021, Version 21.9 Parts © Trinity Amps 2005 – 2021 www.trinityamps.com Version 21.9 Page: 1...
- Page 2 Version 21.9 Page: 2...
-
Page 3: Table Of Contents
Sources of help..................................5 Acknowledgements .................................. 5 WARNING ....................................7 Thank You ....................................8 Version Control ..................................9 About the Tramp................................... 10 Tramp Specifications ................................12 Builders Guide General Theory ............................13 Building an Amp – General Guidelines ..........................13 Introduction ..................................13 Switches and wire ................................ - Page 4 Testing a VRM Installation ............................50 Tone Tweaking ..................................51 ube Substitutions ................................... 54 How to read Resistor Color Codes ............................ 56 How to read Capacitor Codes ............................. 57 FAQ ......................................59 Tramp Bill of Materials (BOM) ............................61 Version 21.9 Page: 4...
-
Page 5: Introduction
- Guitar Amp Basics Aron from diystompboxes.com Parts © Trinity Amps 2005. No part of this document may be copied or reprinted without written permission of Trinity Amps or contributing authors listed above. This Manual is intended for the sole personal use of Trinity Amps Tramp Customers. - Page 6 Version 21.9 Page: 6...
-
Page 7: Warning
While efforts are made to ensure accuracy of these circuits, no guarantee is provided, of any kind! USE AT YOUR OWN RISK: TRINITY AMPS EXPRESSLY DISCLAIM ALL LIABILITY FOR INJURY OR PROPERTY DAMAGE RESULTING FROM THIS INFORMATION! ALL INFORMATION IS PROVIDED 'AS-IS' AND WITHOUT WARRANTY OF ANY KIND. -
Page 8: Thank You
If you find any inconsistencies, or have any concerns, please let us know. Do not hesitate to contact us! We want this build to be successful for you and for Trinity Amps! We’re confident that you will like our product and our support and when you’re completed, we’d appreciate your comments posted on any of the internet forums such as thegearpage.net,... -
Page 9: Version Control
Version Control Version Date Change 1.99 28Sep12 Changed 0.47uf cap from 600V to 100V in BOM 17Jan13 Updated BOM with 0.47uF/0.5uf, 22/20 GA & 530 VCT 1.99 20Aug13 Updated board picture;changed wording around “Connect the first volume control to V2, pin 2…” 1.991 7Feb14 Updated BOM &... -
Page 10: About The Tramp
The Tramp was designed to address this shortcoming and provide extreme versatility while still keeping to the format of a two-stage preamp and only two tubes. The Tramp also features a Master Volume control that doesn't make the tone suck as you turn it down, as well as a variable power level control, allowing you to have almost any tone right down to bedroom volume levels you can comfortably talk over. - Page 11 As you increase the Tramp's Power Level, the tone comes forward with highs and high mids becoming more prominent. At full power and bass down, you can get a real edgy, ringy, "transitory"...
-
Page 12: Tramp Specifications
*VRM– components mounted on eyelet board. MOSFET mounted immediately beside board & leads soldered in directly. Volume control – to adjust amount of volume and overdrive. The Tramp able to go from Clean to Dirty. The Tramp plays like a vintage Tweed Champ/Princeton when in Tweed mode. -
Page 13: Builders Guide General Theory
Builders Guide General Theory For a discussion on Guitar Amp Basics and Tube Amp Theory, please refer to our support page document Builders Guide General Theory Building an Amp – General Guidelines Warning: Do not attempt to build a guitar amp unless you know how to work safely with the dangerous voltages present in a tube amp. -
Page 14: Insulated Jacks
(1) Connect the power transformer center tap directly to the negative terminal of the first power supply filter capacitor (cap) then run a separate wire from the negative terminal to the star ground point. (2) Collect the ground points of each tube and its associated resistors and capacitors to a local ground point that is not connected to the chassis. -
Page 15: Assembling The Amp
Assembling the amp Before You Begin When you first receive your kit, remove all of the parts from the shipping box and place them on a well-lit, clean surface. Check all of the parts against the parts list and verify that you have everything before you begin. -
Page 16: Tube Pin Numbering
- Remove the soldering iron and allow the solder joint to cool. - Note: Do not apply the tip of the soldering iron to the eyelet board any longer than it takes for the solder to flow. The solder joint should be clean and shiny. If it is dull looking it may be a ‘cold solder joint’ which is not a good electrical connection. -
Page 17: Assembly Steps Summary
Assembly Steps Summary 1. Install tubes sockets and all terminal strips on the Chassis. 2. Wire up the heater wires tight to chassis corner bend; Wire up the LED pilot light. 3. Install remaining hardware onto chassis except the two pull switches. 4. -
Page 18: Install Tube Sockets And Terminal Strips
Install Tube Sockets and Terminal Strips Install the sockets onto the chassis using the #4 screws into the threaded holes in the chassis. Align the sockets so that the Octal (8) pin #1 is oriented toward the lower left, and Noval (9) Pin #1 is oriented toward the left, when facing the inside of the chassis into which the tubes are mounted. - Page 19 It is imperative that where possible, the signal wires run close to the chassis, while the heater wires run as far away from the signal wires as possible. Make sure the signal wires hug the chassis and the heaters have a tight twist on them. For the 12AX7 and power tube, we have had success running the connection wires as shown in the layout.
-
Page 20: Install Chassis Hardware
Install Chassis Hardware Install all remaining hardware, grommets, ground lugs and control potentiometers except the Volume - Tweed / Tude pull switch and the Bass - Fat / Thin pull switch. The solder lugs of the hardware should face you to make it convenient to connect to them. Ensure the potentiometers are located in the correct positions according their values and the layout. -
Page 21: Install The Transformers
Connect a Black/Hot line from the IEC Line (L) lug to the fuse holder. Run a wire from the lug on the side of the fuse holder and from the end of the holder to the power switch lug. From the other side of the switch, connect to the transformer 120V input wires i.e. -
Page 22: For 120 V Operations
FOR 120 V OPERATIONS: Connect some BLACK 18 ga. wire from the IEC Socket LINE to the fuse holder at the END of the fuse holder, not middle lug. Run some BLACK 18 ga. wire from the MIDDLE lug of the Fuse holder, along the chassis corner, to a switch terminal located on the Power Level Control. -
Page 23: For 240 V Operation
FOR 240 V OPERATION: Connect some BLACK 18 ga. wire from the IEC Socket LINE to the fuse holder at the END of the fuse holder, not middle lug. Run some BLACK 18 ga. wire from the MIDDLE lug of the Fuse holder, along the chassis corner, to a switch terminal located on the Power Level Control. -
Page 24: Wire Up The Transformers
BLACK/WHITE 110V RED /YELLOW 0V RED 275V BLACK/RED 120V GREEN 3.15 V WHITE 0V GREEN /YELLOW 0V WHITE/BLACK 110V GREEN 3.15 V YELLOW 5 V YELLOW 0 V 120V LINE WHITE/RED 120V TRAMP POWER TRANSFORMER 120V HOOK-UP Version 21.9 Page: 24... - Page 25 YELLOW 5 V YELLOW 0 V 240V LINE WHITE/RED 120V TRAMP POWER TRANSFORMER 240V HOOK-UP 120V - use the primary in parallel hooking 240V - use the primary in series hooking Black/Red to White/Red and Black to Black /Red to White. Connect mains to White/Red and Black White.
-
Page 26: Connecting The Impedance Selector
Install the two 1K 2W resistors on the tag strip and to pin 4, that feeds the Output transformer and power tube. Also install the 10K 2W grid resistor across pins 5 and 6. Connecting the Impedance Selector You may receive a White impedance switch or a Black one. If you received the White one: Ensure that the impedance switch is installed correctly. - Page 27 If you received the Black alternate impedance switch with four terminal lugs with 3 switched and 1 common, connect as shown below. Route the transformer secondary wires between the bias switch and impedance switch. Do the COM first, then 4, 8, 16 ohm connections.
-
Page 28: Output Jacks
Output Jacks The output jacks are ‘connected’ or ‘grounded’ to the chassis. Refer to the Output Transformer schematic for details. Twist the output leads from the transformer to the output tube and to the board. Connect a lead that goes from the center lug “A”, of the impedance switch to one positive / tip of the two output jacks and then jump to the other jack. -
Page 29: Output Transformer Primary Connections
Output Transformer Primary Connections Brown Yellow Orange – 16 ohm Green – 8 ohm Brown-White Yellow – 4 ohm Brown Black - 0 Connect the OT primary brown-yellow (5K) lead to pin 3 (plate) of the octal socket. Connect the brown lead to the first 1K 2W resistor on the terminal strip and also run a 6” lead from that connection point on the terminal strip lug for subsequent connection to the installed eyelet board. -
Page 30: Eyelet Board Construction
Eyelet Board Construction If you do not have a pre-built Trinity amps eyelet board, now is the time to build it. Note: For multiple component leads that must fit into one eyelet or eyelet, insert them first and solder once when they are all in place. You can bend each component lead at 90 degrees so that it fits into the eyelet squarely and neatly. - Page 31 Note: Make sure the cathode bias resistors for the power tubes are separated from the bypass cap and slightly raised off the board as this resistor can emit some heat. Note: For multiple component leads that must fit into one eyelet or eyelet, insert them first and solder once when they are all in place.
- Page 32 ] 5R 3W MO 100K 5R 2W 6.2V ] 6.2V 1W ZENER insulate leads 100R 5W ] 100K 1W CF brown-black-yellow ] 50uF 450V ] 100R 5W ] 220K 2W MO red-red-yellow 50uF 450V ] 220K 2W MO red-red-yellow 220K 2W 220K 2W ] 220K 1W CF red-red-yellow 50uF 450V...
-
Page 33: Assemble Volume And Bass Pull Switches
Assemble Volume Pull Switch It is best to install parts to the pull switch before installing in the chassis. Volume Control It is easiest to install the two resistors and connectors to this switch outside of the chassis. The 47K feedback resistor is held neatly in place by the tab at the end of the switch. Leave about ½” of flying lead on the end to connect to the feedback cable. -
Page 34: Input Jack
Input Jack Wire up the input jack. You may choose to remove the jack, wire them with the jumper and then reinstall them. Install the Cliff switched input jack and tighten securely. The ground wire on the input jack goes to the pre-amp ground along with the board ground at that pre-amp ground lug and to the ground of the Volume pot. -
Page 35: Install Eyelet Board
Install Eyelet Board The Fender style 'point to point' eyelet board used in this project is mounted on stand-offs to the chassis. Installing the board and stand-offs The chassis is tapped to receive 6- 32 machine screws. To mount the board, align the board mounting hole, 3/8”... -
Page 36: Connecting The Board
Connecting the Board General Wiring Power and preamp star grounding is used in the Tramp and the mains ground is bolted to the chassis. We run the pre-amp grounds directly to a separate star to reduce noise. Here is a guideline for wiring the kits with the supplied wire:... -
Page 37: Preparing Shielded Cable
Shielded cable goes from the gain pot to V1 and from the master volume to V2 Do not connect the shields at both ends or you will induce hum. Tramp Grounding Scheme Our amps use a two point grounding scheme where the power side of the amp is connected to a single common ground point, and the pre amp part is connected to another point on the chassis that is located immediately beside the input jacks. -
Page 38: Final Checkout
Power Side Ground Pre-Amp Side Ground Connect the power ground from the board to the power ground lug. Connect the 2 high voltage power red leads from power transformers to the diodes on the board. For mains connections, refer to the Power Transformer schematic. Connect the Octal ground to the same lug. - Page 39 Version 21.9 Page: 39...
-
Page 40: Working Inside A Tube Amplifier Safely
Power Up ***SAFETY WARNING READ THIS FIRST!!!!!*** Working Inside A Tube Amplifier Safely Working inside a tube amplifier can be dangerous if you don't know the basic safety practices. If you aren't prepared to take the time to learn and apply the right precautions to keep yourself safe, don't work on your own amp. - Page 41 • If things are not working correctly what is the highest voltage that I might find? A voltage is ALWAYS measured between TWO points. Is one of those points CHASSIS GROUND? This is the most common case. If not, can you make a different measurement such that one of the measurement points IS GROUND? If your measurements are all referenced to CHASSIS GROUND, you can then connect the black lead (Negative or Common) to the CHASSIS with a clip and probe the other test point with the RED (Positive) lead.
-
Page 42: Tube Bias Settings
With tubes installed, and a speaker or load connected, with volume setting at minimum and NO instrument plugged in, listen for sounds that may indicate a problem. Loud transformer vibrations or humming or other crackling sounds. Observe if any of the components besides the tubes are getting hot –... -
Page 43: Power Transformer Hook-Up
WHITE 0V GREEN /YELLOW 0V WHITE/BLACK 110V GREEN 3.15 V YELLOW 5 V YELLOW 0 V 120V LINE WHITE/RED 120V TRAMP POWER TRANSFORMER 120V HOOK-UP 0V NEUTRAL BLACK 0V RED 275V BLACK/WHITE 110V RED /YELLOW 0V RED 275V BLACK/RED 120V GREEN 3.15 V... - Page 44 WHITE 0V GREEN /YELLOW 0V 220V LINE WHITE/BLACK 110V GREEN 3.15 V YELLOW 5 V YELLOW 0 V WHITE/RED 120V TRAMP POWER TRANSFORMER 220V HOOK-UP 0V NEUTRAL BLACK 0V RED 275V BLACK/WHITE 110V RED /YELLOW 0V RED 275V BLACK/RED 120V GREEN 3.15 V...
- Page 45 Trinity Tramp Voltage Chart (Used to record your measured voltages) AC Mains Voltage 120 VAC B+ No tubes installed B+ All tubes installed SET TO 400 VDC WITH VRM 400 V B+2 397 V B+3 327 V 6V6 / 6L6...
-
Page 46: Warning
USE AT YOUR OWN RISK: TRINITY AMPS EXPRESSLY DISCLAIM ALL LIABILITY FOR INJURY OR PROPERTY DAMAGE RESULTING FROM THIS INFORMATION! ALL INFORMATION IS PROVIDED 'AS-IS' AND WITHOUT WARRANTY OF ANY KIND. -
Page 47: Trinity Tramp Design Voltages
Trinity Tramp Design Voltages AC Mains Voltage 120 VAC B+ No tubes installed B+ All tubes installed 400 VDC Power Amp Screen Cathode Plate 6V6 pin 3 current voltage Current V anode Dissipation NOTES Watts 398.7 1.14 0.0378 369.7 14.0... -
Page 48: Builders Guide General Troubleshooting
Builders Guide General Troubleshooting For a discussion on Guitar Amp Troubleshooting, please refer to our support page document Builders Guide General Troubleshooting Squeal When you test the amp, make sure it doesn’t feedback and squeal when Gain , Fat and PAB are pulled, Vol is on max. -
Page 49: Vrm Bypass Procedure
Connect the 'Source' of the MOSFET to the meter's negative (-) lead Hold the MOSFET by the case or the tab but don't touch the metal parts of the test probes with any of the other MosFet's terminals until needed. First, touch the meter positive lead onto the MOSFET'S 'Gate'. -
Page 50: Testing A Vrm Installation
Testing a VRM Installation 1. Get a 9V battery. 2. Remove all tubes and disconnect the Power cord. 3. Using a jumper, Connect the +ve terminal of the 9V Battery to the VRM HV IN and the –ve terminal to the chassis ground. 4. -
Page 51: Tone Tweaking
Tone Tweaking Below are some modifications you might choose to implement in order to change the tone and response of your Trinity Tramp. We will add them as people discover them. • Use KT66 - Replace the stock 560 ohm resistor with a 1K resistor and it is in parallel with the existing 750 ohms. - Page 52 These are some simple modifications you can do to your amp, let your ears be your guide: Change coupling caps; changing to smaller values reduces bass, changing to larger values adds • more bass. Reducing the value of coupling caps can help eliminate "flabby" bass syndrome. Change cathode bypass caps.
- Page 53 Version 21.9 Page: 53...
- Page 54 Version 21.9 Page: 54...
-
Page 55: Ube Substitutions
Tube Substitutions The 12AX7 family of dual-triode preamp tubes consists of the 12AX7, 5751, 12AT7, 12AY7, 12AV7 & 12AU7. These are all pin compatible with one another, the only differences being the gain factor of each tube. A common substitution is to replace a 12AX7 with a 5751 or a 12AT7 to tame a preamp that tends to overdrive too easily, allowing you to get a better 'clean' sound out of your amp. -
Page 56: How To Read Resistor Color Codes
How to read Resistor Color Codes First the code Black Brown Red Orange Yellow Green Blue Violet Gray White How to read the Color Code First find the tolerance band, it will typically be gold (5%) and sometimes silver (10%). Starting from the other end, identify the first band - write down the number associated with that color;... -
Page 57: How To Read Capacitor Codes
How to read Capacitor Codes Large capacitor have the value printed plainly on them, such as 10.uF (Ten Micro Farads) but smaller disk types along with plastic film types often have just 2 or three numbers on them? First, most will have three numbers, but sometimes there are just two numbers. These are read as Pico- Farads. - Page 58 Most kit builders don't need to go further but there is sometimes a tolerance code given by a single letter. So a 103J is a 10,000 pF with +/-5% tolerance Typical Capacitor Markings Code 0.051 0.0000510 0.18 0.00018 0.0005 4700 0.0047 10000 0.01...
-
Page 59: Faq
NOTE: B+ stands Battery Plus == B+ and came from the old days of tubes. B+ is measured at the intersection of the rectifier DC output and the first filter cap. Q: The pictures show the power and standby switches as "top and bottom" on the back of the switch, the layout shows them as "front and back"... - Page 60 Trinity Forum & 18 Watt forum. Right click on them to download if you want print in large, colour format. Schematic: trinityamps.com Forum Index -> Resources -> Tramp Docs Photos : trinityamps.com Forum Index -> Resources -> Tramp Photos TIP: Flatten or remove the locating tabs on the pots so that they tighten properly on the chassis.
-
Page 61: Tramp Bill Of Materials (Bom)
Tramp Bill of Materials (BOM) DESCRIPTION CHECK TRAMP KIT WITH TRANSFORMER SET, CHASSIS, PANEL, TUBES TRAMP RESISTORS METAL OXIDE RESISTORS RSS 3W 5.1 5%TR WIREWOUND RESISTORS - THROUGH HOLE 100 OHMS 5% TOL CARBON FILM RESISTORS - THROUGH HOLE 270 OHMS 5% 1/2W... - Page 62 LED MOUNTING HARDWARE LED MOUNTING HARDWARE LED CLIP AND RING 5MM NYLON BLACK RECTIFIERS 1000V 1A RECTIFIER GLASS PASSIVATED ZENER DIODES 1N4735A 6.2V 1W ZENER 5% TRAMP CHASSIS HARDWARE SCREW TYPE FUSE HOLDER 10A 250VAC CSA FUSE - SLOW-BLOW 250V 3AG 0.25" X 1.25" 1 AMPS...
- Page 63 *Note - Some hardware may be used to ship transformers in place. Some of the parts contained in this kit are subject to availability. Trinity Amps reserves the right to substitute any part without notification. Substitutions are guaranteed not to affect the integrity or operation of your amplifier kit.
- Page 64 Version 21.9 Page: 64...
- Page 65 Trinity Amps Schematics and Layouts Version 21.9 Page: 65...
Need help?
Do you have a question about the Tramp and is the answer not in the manual?
Questions and answers