Should I give this heat sink some added support after the boards mounted? Thanks and ordered some 417's. Expensive little buggers.
An externally hosted image should be here but it was not working when we last tested it.
I realize they are 'supposed' to be mounted in that fashion but, I want to get the board up close to the top plate.
I would wait and see whether or not that heatsink is going to be adequate as installed in your specific amplifier.
Win W5JAG
^^great idea . Does the pin location matter on that 5 pin part. Feedback welcome and my iron will be here soon. Need to start on the wood part of the base.
Just a bit more pcb work to do and if I can figure out how to hook up the transformers I can run some tests. Lots of wires sticking out of the 270fx
This a preliminary mock up. Choke will be inside. Opinions & guidance really needed.
This a preliminary mock up. Choke will be inside. Opinions & guidance really needed.An externally hosted image should be here but it was not working when we last tested it.
I have never seen a code for the power supplies wiring - such as what each of the T holes on the PCB equate to. Can someone help?
Wayne
Wayne
T1 refers to the power transformer.
T1-1 is the center tap on the high voltage winding of the power transformer. This is often a red wire with a yellow stripe. It is also the ground point for the board.
T1-2 and T1-3 are the 5 volt heater winding leads from the power transformer. These are often yellow wires. Some transformers have a center tap on the 5 volt winding. Do NOT connect it to anything, ESPECIALLY ground.
T1-4 and T1-5 are the high voltage winding leads from the power transformer. They are often red.
T1-6 is the center tap for the 6.3 volt heater winding of the power transformer. It is usually a green wire with a yellow stripe. Do not connect this to ground, just the transformer wire goes here.
T1-7 and T1-8 are the 6.3 volt heater winding leads from the power transformer. They are usually green.
T2 and T3 are the output transformers.
T2-1 and T3-1 are the B+ leads from the primary windings on the output transformers.
T2-2 and T3-2 are the PLATE leads from the primary windings on the output transformers.
The original TSE board is no longer being made, and was replaced by the TSE-II, primarily because the filament regulator has gone extinct and the remaining stock got grabbed up by hoarders. Make sure you can get (or have) this part if you are just starting a new build.
T1-1 is the center tap on the high voltage winding of the power transformer. This is often a red wire with a yellow stripe. It is also the ground point for the board.
T1-2 and T1-3 are the 5 volt heater winding leads from the power transformer. These are often yellow wires. Some transformers have a center tap on the 5 volt winding. Do NOT connect it to anything, ESPECIALLY ground.
T1-4 and T1-5 are the high voltage winding leads from the power transformer. They are often red.
T1-6 is the center tap for the 6.3 volt heater winding of the power transformer. It is usually a green wire with a yellow stripe. Do not connect this to ground, just the transformer wire goes here.
T1-7 and T1-8 are the 6.3 volt heater winding leads from the power transformer. They are usually green.
T2 and T3 are the output transformers.
T2-1 and T3-1 are the B+ leads from the primary windings on the output transformers.
T2-2 and T3-2 are the PLATE leads from the primary windings on the output transformers.
The original TSE board is no longer being made, and was replaced by the TSE-II, primarily because the filament regulator has gone extinct and the remaining stock got grabbed up by hoarders. Make sure you can get (or have) this part if you are just starting a new build.