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Messages - MRMcGovern

#1
You guys are awesome! Thanks for all of the information thus far. I'm definitely going to do this build, I sort of dove in and started ordering parts figuring a) I'm confident that this forum will provide the support and knowledge needed to get this thing working, and b) I could just find the parts and order them.

I know a) still holds true, b) on the other hand is where I'm starting to struggle. The schematic shows a 2.5A circuit breaker, which I'm assuming needs to be rated for 120vac. I can't find this anywhere! Should I just replace it with a fuse? If so, slow blow or fast acting?

I'm also wondering how to go about finding a chassis. Does anyone have any idea what size the Randall chassis is? From what I've read I believe I should try to find aluminum. And from the looks of this page, and the information in this thread, the chassis itself is the heatsink, with the addition of some aluminum blades screwed to the top. This thread really gave me a better idea of what I've just described. http://gear-monkey.com/forum/showthread.php?t=55

Sorry for the lengthy post, but in short, does anyone have any suggestions on a breaker/fuse and/or a chassis?
#2
You guys are awesome, thank you so much for all of that information. I'm very new to this so a lot of what you said is way over my head as far as details go. I'm sure with a bit of studying I can start to understand the details.

If I may ask a dumb question. What components need to be mounted to the heatsink? Sounds like diodes and transistors from the power amp? From what I understand, as long as those components remain cool enough I may not need the thermistor?
#3
Schematics and Layouts / Randall RG100ES Question
May 09, 2014, 06:42:37 PM
I've listed out all of the parts that I need to build an RG100ES from scratch, but there is one component I'm not sure of. I believe it's a thermistor, but no values are labeled next to it. Can someone provide some insight?

(Looks like a squiggly line with a circle around it)(All the way on the right to the left of the two diodes in the center)

http://el34world.com/charts/Schematics/files/randall/Randall%20RG100.PNG

Please help! Thanks!