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Look forward to seeing more.
Can you summarise the circuit differences? Are there a lot of changes from the stock 5E3?
I have TWO 5E3’s and would be interested in converting one of them.
Cheers,
Rob
- Power supply is much stiffer, due to larger filter caps and an extra filter stage. this makes the response more snappy
- The Rectifier is a GZ34, so less sag due to the internal resistance of the rectifier and slightly higher voltage.
- The first stage is a 12AX7 rather than 12AY7, more gain.
- There is local negative feedback on the phase inverter, this does a few things, but generally smooths things out a bit. it may also be helping the amp to clean up more quickly, but I have not done any tests to check that yet. I can turn the bright channel all the way up and it cleans up off the guitar volume really well.
- In a 5E3 the first stages share the cathode resistor, Dumble has them split
- Voltages are different through the amp
If you have two deluxes, I would change one for sure, but you might just need to make a few of the changes rather than a rebuild. so far with my deluxe kits the best mod is to run 6L6's and a GZ34, just sounds so much better. transformers need to be up to the job though.A quick question (apologies for being a bit daft!). Are the two 'instrument' inputs duplicate channels, or are they voiced differently? Can 2 guitars be plugged in at once, or would that cause issues?
Cheers, and thanks for the FB chat last night
Adam