Rose Morris Era AC-30 w/reverb, schematic?

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AtomCap
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Rose Morris Era AC-30 w/reverb, schematic?

Post by AtomCap »

Title says it all, anyone have a copy of a rose morris era AC30 reverb schematic? I have one in that was horrifically butchered and the owner wants it stock, considering they bypassed the reverb circuit all together and took the board out, plugged the
reverb knob, "they" made it easy to repair...

many thanks in advance- I've found zilch on the net, well minus this> https://www.drtube.com/schematics/vox/ac30-rev.gif
what im working with is moderately different in a few ways, more or less looking for a cross reference.
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chief mushroom cloud
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Re: Rose Morris Era AC-30 w/reverb, schematic?

Post by chief mushroom cloud »

Here is a schematic I made years ago from a stock working RM I had on the bench. Same, yet different than the sch you posted. Hope this helps.
note: owner wanted to run 7189s, hence the EL84 rewiring
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Re: Rose Morris Era AC-30 w/reverb, schematic?

Post by pdf64 »

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Olomert Brever
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Re: Rose Morris Era AC-30 w/reverb, schematic?

Post by Olomert Brever »

Wow, thank you Chief Mushroom Cloud. This is a great schematic. What tools did you use to make such an OEM looking schematic?
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chief mushroom cloud
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Re: Rose Morris Era AC-30 w/reverb, schematic?

Post by chief mushroom cloud »

Olomert Brever wrote: ↑Mon Jun 23, 2025 2:09 pm What tools did you use to make such an OEM looking schematic?
Before I retired, I used PADS Logic and PADS PCB at my day job.
I used to document odd and rare amps that came across the bench (amp repair as a sideline).
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AtomCap
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Re: Rose Morris Era AC-30 w/reverb, schematic?

Post by AtomCap »

Thanks chief mushroom cloud
That's way more accurate and you can even read the values :D
Mark
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Re: Rose Morris Era AC-30 w/reverb, schematic?

Post by Mark »

This what I'm using and it largely lines up with what I am seeing. though it omits the 18 ohm resistor that I'm seeing. The amp certainly doesn't have a choke.
new-csw-ac30-top-boost-schematic.jpg
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