Marshall 1974X Clone

Looking great, just a few more wires to go....! Will it be a head or combo? What speaker choice?
Take a good breath and a cuppa before firing up, double and triple check and so on.
Got a light bulb tester I assume?
 
Basically I have to add a few resistors and then wire the heater wires. What is your method for twisting wire Cooder?
 
I built mine in an old computer power supply enclosure. Kinda looks like a$$ but already had the built in IEC outlet. Just had to drill holes for the bulb socket (Home Depot) and a pair of switches (On/Off and Test/Bypass).
 
chongmagic said:
I went by Lowes and just decided to build one to have on hand.

photos.app.goo.gl

New item by Jonathan Freeman (Chongmagic)

photos.app.goo.gl photos.app.goo.gl
Click to expand...
That looks perfect and you really need it! I use it everytime I power up an amp that I have worked on, even if it was just a minor modification. And also when testing second hand transformers or so, recently had it going white hot on a blown second hand power transformer and it showed it's usefullness...
 
I just noticed a boo boo, if you look at V4 it is missing pin 1. I will have to get another socket. Faster to just order one than to contact the seller.
 
I just twist the filament wires by hand. If you twist them with a drill you end up untwisting a bunch of twisted wire! I like to tuck the twisted bits right into the corner of the chassis. I also like to put the tube connections to the board underneath the board and up into the turret. You bend a little "V" into the end of the bare wire and it stays in the turret, especially if you have the insulated part go straight down onto the chassis so the wire can't fall out.

But that's just my anal retention rearing it's ugly head! Have fun - they're a great amp. This is a 50W I built - I love old school Marshalls! weeMarshall004 copy.jpg
 
HamishR said:
I just twist the filament wires by hand. If you twist them with a drill you end up untwisting a bunch of twisted wire! I like to tuck the twisted bits right into the corner of the chassis. I also like to put the tube connections to the board underneath the board and up into the turret. You bend a little "V" into the end of the bare wire and it stays in the turret, especially if you have the insulated part go straight down onto the chassis so the wire can't fall out.

But that's just my anal retention rearing it's ugly head! Have fun - they're a great amp. This is a 50W I built - I love old school Marshalls!View attachment 4335
Click to expand...
That is some clean work right there!
 
HamishR said:
I just twist the filament wires by hand. If you twist them with a drill you end up untwisting a bunch of twisted wire! I like to tuck the twisted bits right into the corner of the chassis. I also like to put the tube connections to the board underneath the board and up into the turret. You bend a little "V" into the end of the bare wire and it stays in the turret, especially if you have the insulated part go straight down onto the chassis so the wire can't fall out.

But that's just my anal retention rearing it's ugly head! Have fun - they're a great amp. This is a 50W I built - I love old school Marshalls!View attachment 4335
Click to expand...

That looks nice and clean! Awesome work!
 
Sorry, didn't mean to hijack. I think you'll love the 18watter. It's worth taking your time with amp wiring because there is some scary voltage going on - turning an amp on for the first time always scares the begeezus outa me. I don't know if you've been warned, but sometimes when you turn an amp on for the first time it shrieks like a banshee. This can simply be that the output tranny is connected the wrong way around - all you have to do is swap the O/T leads over at the power tube sockets. They would be the brown and blue wires in your amp.
 
HamishR said:
Sorry, didn't mean to hijack. I think you'll love the 18watter. It's worth taking your time with amp wiring because there is some scary voltage going on - turning an amp on for the first time always scares the begeezus outa me. I don't know if you've been warned, but sometimes when you turn an amp on for the first time it shrieks like a banshee. This can simply be that the output tranny is connected the wrong way around - all you have to do is swap the O/T leads over at the power tube sockets. They would be the brown and blue wires in your amp.
Click to expand...

You didn't hijack it is all good, I am a complete noob when it comes to amps to I will gladly take any advice.
 
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