With so much replaced, this kinda makes me believe even more so that searching for 'mojo' in Vintage Marshalls is a needlessly costly exercise. If you want that sound, it looks like it starts with a really good OT replica, and the rest you can build around it, with modern, and widely available, components. I hope one day to build a 12-Series EVH Spec '68 Superlead, from all new parts.
I remember when I was a kid, 9 or 10. Going to the rxall drug store with my older brother checking tubes. He said this one’s expensive 3 bucks. I suppose back then that was a lot for a tube, I want to say RCA but that was long ago.
Maybe find a washer with the 3/8 hole and will just fit into the hole to take up the thickness of the faceplate and chassis to fill that gap and get it closer to flush of the faceplate. You get lucky sometimes.
Please tell me you're going to follow Ken Fischer's "Measured Current Biasing" method on this amp. Find the sweet spot on the bias pot, between 10-40mA per tube... wherever the amp sounds best between those settings is the "correct" bias for that particular Marshall. Some guys like it running hot, some people like myself like a little cooler bias with more headroom. Ken would always adjust the bias based on the players speakers and style of playing. Most techs just set it to a specific voltage or current and call it a day, but you can really bring out the amps natural best tone by tinkering with the bias. Great job, can't wait to hear this cranked up!
Could you put it on an oscilloscope when you bias the amp up with the tubes in it? I'd like to see where the bias is in mA (or DC mV) when the sine wave isn't crossing over or clipping.
Impressed does not express what I’m really thinking. You are a old school craftsman. It is a pleasure to watch you work, Sir.
Beautiful work
Looking super nice.
Amen! What a clean build all is right in the Marshall world.
What a change. Looks great.
Looks great lyle, as neat if not better than any I've seen, and with the new ground scheme will sound better than it ever has👍
Wow, what a different thas is. Nice.
Wow looks incredible. I wish this was my amp😍
You've turned that mess into a thing of beauty!
Looking great.
With so much replaced, this kinda makes me believe even more so that searching for 'mojo' in Vintage Marshalls is a needlessly costly exercise. If you want that sound, it looks like it starts with a really good OT replica, and the rest you can build around it, with modern, and widely available, components. I hope one day to build a 12-Series EVH Spec '68 Superlead, from all new parts.
Looking great, and on it's way..Good job..Ed..uk...😀
Very pretty. That 'flashback' to the old, mangled PCB: trauma! I'm gonna need counselling after that.
I remember when I was a kid, 9 or 10. Going to the rxall drug store with my older brother checking tubes. He said this one’s expensive 3 bucks. I suppose back then that was a lot for a tube, I want to say RCA but that was long ago.
Looks ready to rock
She’s looking real good there, Snowpants.
Love your content! Please invest in some more lighting. Hard to see with all the shadows.
Maybe find a washer with the 3/8 hole and will just fit into the hole to take up the thickness of the faceplate and chassis to fill that gap and get it closer to flush of the faceplate. You get lucky sometimes.
Please tell me you're going to follow Ken Fischer's "Measured Current Biasing" method on this amp. Find the sweet spot on the bias pot, between 10-40mA per tube... wherever the amp sounds best between those settings is the "correct" bias for that particular Marshall. Some guys like it running hot, some people like myself like a little cooler bias with more headroom. Ken would always adjust the bias based on the players speakers and style of playing. Most techs just set it to a specific voltage or current and call it a day, but you can really bring out the amps natural best tone by tinkering with the bias. Great job, can't wait to hear this cranked up!
Could you put it on an oscilloscope when you bias the amp up with the tubes in it? I'd like to see where the bias is in mA (or DC mV) when the sine wave isn't crossing over or clipping.