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Topics - gearhead63

#1
This is an excellent reference book. Explains the operation and theory of all the different type of audio amplifiers (solid state), with schematics etc. as well as typical uses for power transistors. Can help a lot when troubleshooting transistor amps.
https://ia600900.us.archive.org/22/items/RcaPowerTransistorApplicationsManual/RcaPowerTransistorApplicationsManual.pdf
#2
I called Soundtech Support and got a copy of the schematic for the MC100 power module. I haven't got to compare it to my amp yet, but he said this is the only one they have for it, and they do not produce that amp any more.
#3
Took me a while but I found this so I could fix this mixer.
#4
Does anyone happen to have a copy of the schematics for a Flextone III?
Thanks!
#5
Amplifier Discussion / Line6 Spider III 120
June 01, 2014, 12:21:03 PM
Does anyone know if the circuitry for the Spider III 120 is comparable to the 75?
And if not where I might obtain a schematic for the 120?
I have a guy that has a 120, and one day it just showed 8 dashed lines on the LCD with no output. I saw on another forum where someone had a Spider III that did the same thing, turned out to be an SMD cap on the preamp board, but as Line6 repaired it, he didn't know which cap it was. I have schematic for the 75 and HD150, but not the 120. He lives a good ways from me, so I don't have the amp in front of me,yet,to compare the PCB to my schematic.
Any help would be appreciated.
#6
Here's the schematic for Behringer GMX212 and GMX1200H amps. Finally found one and thought I'd share. Behringer acts like the the world will end if they give you any information!