Funkalicousgroove wrote:Kinda hi-Z on the send stage doncha think? Have you seen one of these? might be a good candidate for modding.
I was thinking that as well. If the transformer is usable then for $100 you've got a nice enclosure, xfomer, jacks, mounting H/W and power cord... could do a lot worse. A decent enclosure alone is quite pricey these days if you buy new.
If the purchaser was an ampgarager, please step forward and give us a review!
"Let's face it, the non HRMs are easier to play, there, I've said it." - Gil Ayan... AND HE"S IN GOOD COMPANY!
Funkalicousgroove wrote:Kinda hi-Z on the send stage doncha think? Have you seen one of these? might be a good candidate for modding.
As far as I understand the output impedance of a cathode follower is determined by the tube's transconductance only (see this link )http://www.freewebs.com/valvewizard/accf.html. So the send impedance should be the same as with the dumbleator.
The impedance of the CF is indeed determined by the internal resistance of the tube, what I was referring to was the 1M resistor after the coupling cap.
I have one of these that I use with a non-HRM ODS amp. It sounds quite good.
I've replaced a couple of electrolytic caps with higher rated ones (same values), along with a resistor (again, same value; higher rating).
It has a very subtle softening effect to the tone, without really losing much in the way of the amps frequency response. It's also relatively quiet.
I've been kicking around the idea of rebuilding it using Funk's tutorial on the Dumbleator, but I'm not quite sold on it actually improving the sound. Plus, I gig a lot and have been using this as part of a steadily used rig, so the down time for the re-build is tough to come by.
I am really curious to see what difference the actual Dumble circuit would make. I'm always looking for better tones, as are all of you I'm sure.
In basic terms, what would it take to convert one?
