Windsor

  • Thread starter Thread starter JackBootedThug
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JackBootedThug

JackBootedThug

MURDERATOR
It’s really nice for low gain acdc type stuff but damn it sounds like dogshit unless I’m running some effects in the loop with it. I have only ever owned a single 800 before and it honestly reminds of it. However mine does not take a boost for shit. Sounds like hammered ass the more gain you give it. 🤔
 
It's supposed to be really close to an 800 circuit wise. Sounds like it's about time you took the iron too it and do some mods.
 
https://www.thetubestore.com/lib/thetubestore/schematics/Peavey/Peavey-Windsor-Schematic.pdf

The preamp could be somewhat easily modded to jcm800/2203 specs but I don’t know if it would sound that similar in its stock setup.

No bright cap on gain pot, 2nd stage is 2.7k/1u cathode instead of unbypassed 10k, 3rd stage is 1k/.68u cathode instead of unbypassed 820r, and instead of that running into the cathode follower, there is a 470k/470k divider into a 39k cold clipper stage (like recto, soldano) and then plate driven tonestack off that cold clipper stage.

I don’t recall seeing other amp schematics that use that cold of a stage as the last gain stage. Tonestack slope resistor and treble cap are also different from standard 2203, tonestack should be a lot more scooped (or maybe not, I don’t know how much that plate driven tonestack changes its response). All that can be changed to 2203/jcm800 specs with like 9 parts.

Power amp is also set up different, cathodyne phase inverter instead of long tail pair like Marshall (and most other guitar amps) use.

It could be a fun modding amp if cheap.
 
1749392880567.jpeg
 
Some very easy things I’d do:

Put a 63k resistor over R3

Put a 20k resistor over R1

These are mods that are easily reversible.

Honestly the phase inverter needs converted to a long tail pair to really wake it up. Not a fan of cathodyne phase inverters.
 
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