Trying to Match a Hammond PR-40 PT to a Twin Project;>/(Hot Shot 48 Plexi)

[Platefire]

Turn the page! Cut out new front panel for this amp yesterday. Gosh, ain't that Jesus reaching out to the Whole World?

[Platefire]

Hello Yall!

I've been playing the Hot Shot 48 at my regular gig at Church last 3 weeks. I finally finished tolexing the cab but Haven't taken detailed pictures yet. I've been playing it with the hot switch off in clean mode. The amp is very quiet regarding operating noise in clean mode. I don't detect any noise at all unless I just listen for it. That's great because I like a quiet amp.

The most distinguishing thing I can tell about it is not as bright as my 5F6A build(Dukane). Seems I'm fighting over brightness on that build but on this one, not so. I've been playing a 69 tele through it lately and have no problem dialing in enough bottom to mellow that bright ax out. I modernized the presence control at I think sluckey's recommendation and it's one of the most responsive ones I've had where I can hear the difference in settings. Real happy with the tone stack operations and MV isn't bad either.

I want to get around to playing with hot switch settings but for my break in period hanging with clean with MV set to present a little hair at top guitar volume, clean when turned down.
Here is a picture of the Pastors Grandson came up after church and took his picture with me. He's a guitar nut already:>) You can see the Hot Shot 48 in the background sitting on a Mesa Boogie 4-10 cab. Platefire

[frankenxtein]

That is a nice amp you've built there. Slowly but surely moving closer to a build with my PT (same PR40) There's a Thordarson PT that pushed it back a bit in the lineup but both are waiting on the last build , 5e3 Pro Amp (wire dressing) I had to build a few boxes out in the backyard with the nice weather so now that's done.
          I don't play out much anymore and the need for another amp is ... well .... need someone else to build it for   With six amps ready to use , I'm beginning to feel like a hoarder. Time to clean the studio up and have a few pickers over to test some earplugs.
    Being a humbucker user pretty much exclusively , has me wanting that bright sound.  Thank you for sharing your experiences .... Great picture  

[Platefire]

Thanks Frank

This makes 15 amps I now have. Think this might be my last build. Just maintenance or tweaks on what I already got from now on. It took almost two years to complete this one. I've been practicing with two amps together lately, not stereo but a mighty full wide sound.

I did some builds for other people but if I charged for the labor and cost I really had in them I would have had to charge them a small fortune, so you end up eating research time and other time to make it happen. This is good fun if you like building for the sake of building but if it's not profitable, not much incentive to continue when there are more important things of life you could be spending your time on that really need attention. On the other side of the coin, it's nice to spend time doing something you really enjoy too. So I look at it as a fun hobby with great tonal benefits!

Would like to see what you make out of your PR40 transformers. Rattle my cage when you get going on it. This is a very long thread and I think definitely just about every aspect of the build is well covered. Casey4s the one who talked me in to building my first Champ in 2000 and then provided a hand made kit to accomplish it, taught me to document everything very well, and I guess that is etched in my brain. Platefire

BTW-I will post some detailed pictures of the amp in the not to distant future, if the Lords willing and the creeks don't rise

[frankenxtein]

You really touched on quite a bit , that rings true for me. 
Trying to be practical/thrifty has me thinking of building something along the lines of what it was powering.

     Not doing what everyone else does , probably drives anyone who builds amps to start with. It's strictly fun for me ... TriFi  something to use with my electric piano/midi. Maybe something to double as a small PA for here at home. It's a tiny house so we don't need too much.
        Not like we don't have large speakers hanging from the ceiling in what was the living room. My son and I have played together for years. The dinning room table was replaced long ago with a Drumkit. I'll let you know when I start in on it    

[shooter]

if the Lords willing and the creeks don't rise

don't move, they're rising FAST in MI!

[Platefire]

Yeah, I'm waiting for it to dry out enough so I can mow
My yard, before it gets too high!

[Platefire]

I normally put finish pictures up when I finish a project but when I finished this one, I took it to our Church where I play with the Praise Band and its been there ever since. That was March 17. Some of the tolex that wasn't glued well enough has come loose along the edges, so I brought it home to re-glue those ends.

So for all of you that have been sitting on the edge of your seat, chomping at the bits, pacing the floor and biting your fingernails in anticipation---the pixs are here!!! 

Yeah Right! Anyway it's something I must do, so lets get it over with. Platefire

[Platefire]

Oh Yeah, there is even more!

[Platefire]

Not a whole lot of beauty here, just neat, efficient and BTW---it sounds great and quiet as a mouse!

[CraigB]

Sweet build, Plate!!!

[Platefire]

Thanks! I'm kinda fond of it. Platefire

[Ed_Chambley]

Love it.  really good job of making use of an old tone cabinet.  I love to get those things and what is cool is I usually get them for just hauling them off.


I am really impressed you are able to use this to play at church.  Must get a good tone early, which is rare for a Marshall Topology.

[Platefire]

Thanks Ed! If you look at the pictures of the pre-vol and master vol
That's what I'm running my strats and teles on. Pre is less than 12:00 o'clock
and master below 9:00. With my humbucker guitars the pre vol right above 9:00.
So IMHO I'm getting good response and tone. What I like is I don't have to
Fight ice pick highs like on some of my other amps. The good thick tone is
There still with good cut through highs. Better than my Bassman builds but
In actuality, it is a modified Bassman build. The Presence control provides a
more detectable tone change in adjustment than any one I've had before.
There is a good reason it's been at the Church the last six months, it's really
Working good! Platefire


BTW---Have to give credit where credit is due. DummyLoad was there step by step,
Blow by blow in working with his own PR40 power supply in determining what
Would work best plus he actually did the drawings on the board. So even though
Others provided  helpful hand that I very much appreciate, DL went to a lot of extra
effort beyond the call of duty, so SALUTE to you Dummyload!!!!!

[DummyLoad]

thanks plate and you're welcome!! happy to chip in.


--pete