college101
Well-known member
Ok guys,...Im in my first year of Electrical Engineering...and I have to say...Ive been learning more outside the classroom , then in the classroom... I am buying lots of books of ebay and amazon to really learn the theory, and the Math...I really want to get the nuts and bolts of things and see The BIG picture...
Now, Ive built some pedals over the last year, and recently just completed a Aurycle Tube Mic, A5500..
I do tons of other little solder repairs all the time, and I love it...I think electronics is rad, and I see now how hand built stuff really is the best...including point to point( which is what I really want to learn )
So, I feel like Im ready to take the next step...and I want to build a LA-2A next...of course, I have been doing research for the last month, BEFORE, I even start to order parts...I really want to understand the circuit, and all that its doing FIRST, before I go into the build...
My first question
OK, so in the LA-2A schematic, looking at the 1968 schematic, the top left section after the T1 section, it shows the T4b set up off of the limit/compress switch...BUT what I don't get yet, is the section connected to the R4(the 1M Pot)...* so what I think is-the T4b functions im two different ways within the circuit, one way to limit, and the other to compress...the schematic shows it in two different places, but just shows the signal path of what happens for when you are in either Limit/ or Compress...
Am I Right?
Next...I noticed after looking at a ton of schematics... I see that the notes in the bottom left show the tolerances with the resistors for 1/2w and 5%... With audio, what are the best type of resistors to use for audio circuits....( I know this is a loaded question with multiple opinions, but honestly...after looking at the community on here at prodigy pro- I cant think of a better place to ask for some good opinions..So please be kind, and teach me a thing or two!!
I want to say thanks in advance for anyone that helps! Im looking forward to this thread and to show some pics of my build as it goes along...
Now, Ive built some pedals over the last year, and recently just completed a Aurycle Tube Mic, A5500..
I do tons of other little solder repairs all the time, and I love it...I think electronics is rad, and I see now how hand built stuff really is the best...including point to point( which is what I really want to learn )
So, I feel like Im ready to take the next step...and I want to build a LA-2A next...of course, I have been doing research for the last month, BEFORE, I even start to order parts...I really want to understand the circuit, and all that its doing FIRST, before I go into the build...
My first question
OK, so in the LA-2A schematic, looking at the 1968 schematic, the top left section after the T1 section, it shows the T4b set up off of the limit/compress switch...BUT what I don't get yet, is the section connected to the R4(the 1M Pot)...* so what I think is-the T4b functions im two different ways within the circuit, one way to limit, and the other to compress...the schematic shows it in two different places, but just shows the signal path of what happens for when you are in either Limit/ or Compress...
Am I Right?
Next...I noticed after looking at a ton of schematics... I see that the notes in the bottom left show the tolerances with the resistors for 1/2w and 5%... With audio, what are the best type of resistors to use for audio circuits....( I know this is a loaded question with multiple opinions, but honestly...after looking at the community on here at prodigy pro- I cant think of a better place to ask for some good opinions..So please be kind, and teach me a thing or two!!
I want to say thanks in advance for anyone that helps! Im looking forward to this thread and to show some pics of my build as it goes along...