The trem is easily neutered by lifting the lead at the "Intensity" pot. Have you thought about going "full bypass" on the 'verb? I suggest losing the trem first. You may like it just fine after that.Bob-I wrote:I have a Super Reverb that I built from a Weber kit. I used it as an experiment for minimul mods into a Dumble. Worked out fairly well by modding the normal channel tube into an OD channel. I left the trem and reverb in place but I may change that as they may be tone suckers.
Started an HRM project
Moderators: pompeiisneaks, Colossal
Re: Started an HRM project
Re: Started an HRM project
Anyone have suggestion for the original question ? -resistor sizes for the dlator feed. The PT secondary is 345V.
mat
Re: Started an HRM project
I did that to the trem, big improvement. I think my problem now is poor iron from Weber. In the future I'll replace it with a MM.Zippy wrote:The trem is easily neutered by lifting the lead at the "Intensity" pot. Have you thought about going "full bypass" on the 'verb? I suggest losing the trem first. You may like it just fine after that.
Re: Started an HRM project
Your values should be safe for a 12AX7. Just make them accessable in case you need to change them. I would check plate voltage soon after you fire it up the first time especially the cathode follower plate. I think max differential plate to cathode voltage (not plate to ground which may be higher in that circuit) for a 12AX7 is 250vmat wrote:Anyone have suggestion for the original question ? -resistor sizes for the dlator feed. The PT secondary is 345V.
Re: Started an HRM project
Almost finished 
The dropping string is still missed and the wires are not tied yet. I'll first make sure it works and then do the tiying and tidying (right word ?). Also the reverb section and fet circuits are missing. I will add them later.
[img
786]http://www.pichotel.com/pic/16028B31e/136545.jpg[/img]
[img786]http://www.pichotel.com/pic/16028B31e/136546.jpg[/img]
[img786]http://www.pichotel.com/pic/16028B31e/136547.jpg[/img]
[img:819:632]http://www.pichotel.com/pic/16028B31e/136548.jpg[/img]
[img:819:632]http://www.pichotel.com/pic/16028B31e/136549.jpg[/img]
Any obvious mistakes ?
The dropping string is still missed and the wires are not tied yet. I'll first make sure it works and then do the tiying and tidying (right word ?). Also the reverb section and fet circuits are missing. I will add them later.[img
786]http://www.pichotel.com/pic/16028B31e/136545.jpg[/img][img
786]http://www.pichotel.com/pic/16028B31e/136546.jpg[/img][img
786]http://www.pichotel.com/pic/16028B31e/136547.jpg[/img][img:819:632]http://www.pichotel.com/pic/16028B31e/136548.jpg[/img]
[img:819:632]http://www.pichotel.com/pic/16028B31e/136549.jpg[/img]
Any obvious mistakes ?
mat
Re: Started an HRM project
Looks pretty slick mat!
Please post some clips when it's up and limping. I'd like to compare to my own HRM project.
Please post some clips when it's up and limping. I'd like to compare to my own HRM project.
"Let's face it, the non HRMs are easier to play, there, I've said it." - Gil Ayan... AND HE"S IN GOOD COMPANY!
Black chassis' availble: http://cepedals.com/Dumble-Style-Chassis.html
Black chassis' availble: http://cepedals.com/Dumble-Style-Chassis.html
Re: Started an HRM project
Mat,
Where did you get that chassis? (sorry if I missed this from before)
Michael
Where did you get that chassis? (sorry if I missed this from before)
Michael
Wife: How many amps do you need?
Me: Just one more...
Me: Just one more...
Re: Started an HRM project
Clips coming for sure when it will be ready (debugged,tuned..). Chassis is from: http://www.uraltone.com/kauppa/index.php?cPath=18_58odourboy wrote:Looks pretty slick mat!
Please post some clips when it's up and limping. I'd like to compare to my own HRM project.
Cant wait to get this thing up and running
cheers,
mat