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Dennis Perusse
May 7th, 2012, 10:48 PM
Hello,
A while back I did a Kalamazoo model 1 layout using the cleaned up schematic done by Miles O'Neal. I originally did it since no one had done it before and I wanted to challenge myself to do one. That was the perfect opportunity in my own eyes to try out. Opinions were varied but positive, and although I had not real definite yay or nay that it was right I had, at least, the confidence to one day try to do a layout for the Model 2. I originally wanted to do it first but wasn't sure if I could do it right.
Having finished up my champ amp I figured that I'd put pen to ink + a scanner and see if I could do up the Model 2's layout. Now obviously I know that the only way to truly test my layout, whether it be for the Model 1 or Model 2 will work is just to build them both. But in the interest of spreading out knowledge and becoming more knowledgeable myself I'd rather submit it to all of you and see what you think about it. I know that the Model 2 is loved by Harp players for its sound and with it's tremolo.
I've also made some changes in the layout that differs from the schematic. I took the Hi/Low inputs from Fender, plus I also have use of a brass plate in my layout. Some will make plain that the grounds should be a star ground and some may differ. I figured that if it worked for fender it should work okay here. Besides, prototypes are fun even when you see the mistakes that seemed like good ideas or build practices at the time. :oops:
Plus I also upped the values on what was the multi-cap in the original amp to handle the low end better. Again where this is on paper then, in my head, it should be okay. It'll only be if people decide to build it if they feel that it is okay in its approach. I also put a pilot light on the heater side of it which is also different plus I also put a separate on/off switch too as I felt that that would clean up things a little bit better.
So if anyone can give me both constructive as well as negative criticism that would be cool. This is one amp I would love to build but really need help in ascertaining if my layout is good. I know that some on this list have cloned this amp or have wanted to clone this amp. My apologies if it looks somewhat hard to read the scanner can make some images look blurry sometimes. :smile: I can't thank you all enough for your time and efforts and am looking forward to your comments.
Dennis
A while back I did a Kalamazoo model 1 layout using the cleaned up schematic done by Miles O'Neal. I originally did it since no one had done it before and I wanted to challenge myself to do one. That was the perfect opportunity in my own eyes to try out. Opinions were varied but positive, and although I had not real definite yay or nay that it was right I had, at least, the confidence to one day try to do a layout for the Model 2. I originally wanted to do it first but wasn't sure if I could do it right.
Having finished up my champ amp I figured that I'd put pen to ink + a scanner and see if I could do up the Model 2's layout. Now obviously I know that the only way to truly test my layout, whether it be for the Model 1 or Model 2 will work is just to build them both. But in the interest of spreading out knowledge and becoming more knowledgeable myself I'd rather submit it to all of you and see what you think about it. I know that the Model 2 is loved by Harp players for its sound and with it's tremolo.
I've also made some changes in the layout that differs from the schematic. I took the Hi/Low inputs from Fender, plus I also have use of a brass plate in my layout. Some will make plain that the grounds should be a star ground and some may differ. I figured that if it worked for fender it should work okay here. Besides, prototypes are fun even when you see the mistakes that seemed like good ideas or build practices at the time. :oops:
Plus I also upped the values on what was the multi-cap in the original amp to handle the low end better. Again where this is on paper then, in my head, it should be okay. It'll only be if people decide to build it if they feel that it is okay in its approach. I also put a pilot light on the heater side of it which is also different plus I also put a separate on/off switch too as I felt that that would clean up things a little bit better.
So if anyone can give me both constructive as well as negative criticism that would be cool. This is one amp I would love to build but really need help in ascertaining if my layout is good. I know that some on this list have cloned this amp or have wanted to clone this amp. My apologies if it looks somewhat hard to read the scanner can make some images look blurry sometimes. :smile: I can't thank you all enough for your time and efforts and am looking forward to your comments.
Dennis