Morgan RCA35

shocki · Post by **shocki** » Thu Jul 17, 2014 4:43 pm

That schematic has "350-0-350 unloaded" written on it, but then 370V for the first power supply node, which doesn't add up to me unless I'm missing something?

I was also asking this myself.

randalp3000 · Post by **randalp3000** » Thu Jul 17, 2014 4:46 pm

beasleybodyshop wrote:
randalp3000 wrote:OMG I forgot, it's a copy of the 18 Watt Superlite TMB pre with a couple very small tweaks.
Randall, was there some sarcasm font tossed in there lol?

since i started this post, ive been inside two of these. I definitely agree with the comment that someone made about these things being assembled together in 30 minutes. The two that i looked into both had wires that were literally one nudge from breaking off.

randalp3000 · Post by **randalp3000** » Thu Jul 17, 2014 4:48 pm

shocki wrote:
That schematic has "350-0-350 unloaded" written on it, but then 370V for the first power supply node, which doesn't add up to me unless I'm missing something?
I was also asking this myself.

Yeah, that should be closer to 470v. I may have goofed.

shocki · Post by **shocki** » Thu Jul 17, 2014 5:02 pm

Is this a schem you made up from the image? Or did you actually own this amp? Would be great to know the voltages at the other points.

beasleybodyshop · Post by **beasleybodyshop** » Thu Jul 17, 2014 5:30 pm

Structo wrote:Yeah but, but, but, but, it has Sozo's and Mercury transformers!

Let me find my golden ears...

menger66 · Post by **menger66** » Fri Jul 18, 2014 9:32 pm

I've built a few big bottle suprlights. I tried 6l6 but liked kt66 much better.
I've also used el34 the 47k tail in the pi does'nt seem like it would sound very good, Those dropping R in the power rail must be those BC 2 or 3 watters, even with merc mag iron and sozo i can't see that as a 1700$ amp people a crazy.

shocki · Post by **shocki** » Sat Jul 19, 2014 4:23 pm

What did this big tube amp actually sound like? He desribes is as an american (so Fender) amp with great cleans. Is this what it actually sounds like ? The regular 18W Marshalls do not sound like this at all. Is it just the power section that makes such a huge difference? I also know somebody who described this amp as a very good BF kind of amp.

grooverock · Post by **grooverock** » Sun Feb 15, 2015 2:33 am

Hi!

I wondering what the 470p between the Anodes does...
These Anodes are out of phase... Maybe against oscilation???

Thank you very much!
Kim

mijomo · Post by **mijomo** » Fri Feb 24, 2017 8:09 pm

Here is a picture of my old Morgan Amps RV35 aka the Reverb Model of the RCA35.
I had Jupiter Vintage Tone Capacitors in mine verses the SoZo Caps I see pictured in everyone else's amp.

083.JPG

Enjoy!

Mikey Joe >> http://www.mikeyjoeshow.com

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