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There’s also a 2 hole mount version available for 2204s.

Here’s an example of heater wiring from a 1974 I built a while back:

No, that's how I do my Marshalls and it works great. They have all been dead silent. Much better than the "stock" way of doing it. A little more like Fender's "up and over" method, but not entirely.

Love that big ol' honkin' iron. I'm still planning out my 2204 in DIY. Starting point is the chassis, board, etc. from Valvestorm/Metro, w/ Heyboer iron. Are you staying close to stock values on everything, cold clipper, etc.?

Okay, perfect. I got the one with endbells and 5H.

Yep, that’s where I have been getting Heyboers lately.

Thank you. My understanding is that the T100 or 1471-263 choke is 5H?

When I was in college, I sold my 2210 head and purchased a ‘79 JMP 2203 that was in mint condition. It was my favorite amp by far, and had for me the ideal crunch tone. Sadly, I ended up selling that amp and God only knows what subsequent owners did to it (seems like this era of Marshalls are...

Thanks for the reply! I was planning to use a Valvestorm chassis for a stand-up style PT. Do you know if that would fit in the small box 50 watt head shell? (9" tall by 26" wide)

Looking great so far! I am contemplating building one of these if I can make it out alive from my upcoming Hiwatt build. Does anyone know if you can do a 2204 inside of a 24" wide Marshall head cabinet? Wasn't sure if they'd fit in those smaller box head cabinets, or if they require the 29"...

That's a good choice, in my experience. I believe the 1987 circuit used a 2.2nF in the High Treble channel signal path by default, I'm wondering why that wasn't the case with the kit? Or maybe some earlier models used double 22nFs on the channels?

Nice, thanks for sharing that. Seems like a good option. I’ve since found a socket with the appropriate nibs for tightening these. Works like a charm.

Dang, Sozos have really gone up in value.

Question about switches (I wish I better understood this aspect of amp builds): Because of the transformer I'm using, I have to twist a pair of 18 awg wires (120v) from the PT to the mains switch, along with one of the wires from the amber neon lamp. That's 3 18 awg wires for one tiny lug. It's...

No doubt. That's what I was looking for. Anyone have an exact part number and/or link?

http://valvestorm.com/sites/default/files/BeveledToggleRing.jpg

Hi Pete, thanks for the feedback. I’d love to make the standby better. Any layouts or advice you can offer on how to do that, based on my existing layout? Or, would I be okay just to use a 100k 2w resistor + .1 uF cap across the two lugs of the standby switch?

@Mcentee2 @Pete Farrington and others: Can you review my updated layout and see if you notice any potential issues? I've revised the 0V scheme to a single point at input approach vs. the multiple nodes. Note that the striped pink wires are shielded (RG-316).

Thanks, this is helpful. I’m actually using Modulus PT and OT (which I just received today), but the chassis and other items were from Valvestorm. I’m also going to need to do this for 120 VAC. My HT fuse is also chassis mounted (“on the floor”), adjacent to the PT. My current layout, based on...

Thanks. I'd be interested to see a take on this for a JTM45. My current plan is this: