Version 21.9
Page: 3
Contents
Introduction ..............................................................................................................................................................................5
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 ............................................................................................................................................................ 13
Physical layout.................................................................................................................................................................. 13
Grounding......................................................................................................................................................................... 13
Insulated jacks .................................................................................................................................................................. 14
Minimizing transformer interference ........................................................................................................................... 14
Wiring ................................................................................................................................................................................ 14
Assembling the amp ............................................................................................................................................................. 15
Before You Begin ............................................................................................................................................................ 15
Tools .................................................................................................................................................................................. 15
Soldering............................................................................................................................................................................ 15
Tube Pin Numbering ...................................................................................................................................................... 16
Assembly Steps Summary .................................................................................................................................................... 17
Install Tube Sockets and Terminal Strips.................................................................................................................... 18
Heater Wires..................................................................................................................................................................... 18
Install Chassis Hardware ................................................................................................................................................ 20
Install the Transformers ................................................................................................................................................. 21
FOR 120 V OPERATIONS: ........................................................................................................................................ 22
FOR 240 V OPERATION: .......................................................................................................................................... 23
Wire Up the Transformers............................................................................................................................................. 24
Connecting the Impedance Selector ............................................................................................................................ 26
Output Jacks..................................................................................................................................................................... 28
Output Transformer Primary Connections ................................................................................................................ 29
Eyelet Board Construction ............................................................................................................................................ 30
Assemble Volume and Bass Pull Switches.................................................................................................................. 33
Input Jack.......................................................................................................................................................................... 34
Install VRM ...................................................................................................................................................................... 34
............................................................................................................................................................................................ 35
Install Eyelet Board......................................................................................................................................................... 35
Connecting the Board........................................................................................................................................................... 36
General Wiring................................................................................................................................................................. 36
Bias Switch Wiring .......................................................................................................................................................... 36
Preparing Shielded Cable ............................................................................................................................................... 37
