Who's ready for more of my boring amplifier project?
For those of you still reading, here's what I've been up to:
A couple days ago I figured out that I could use an LED bulb for the pilot lamp. It doesn't really look much different with the jewel in place, but it's one less thing I have to worry about replacing later...
Incandescent bulb:
LED:
Then I rewired the output jack and did away with the extension speaker output. I never used it and I think of it as a design flaw. It's handy if you have two 8 Ohm speaker cabinets (8 Ohms plus 8 Ohms equals 4 Ohms), but I have one 4 Ohm speaker cabinet, which is what the output transformer wants to see...
Okay, here comes the good part! Tonight I cut out my circuit board! Woohoo!
Here's the raw stock: a 12" x 12" piece of Garolite G-10 substrate, the same stuff I used for the rectifier board, only this is black:
I cut out a two and a half inch wide section:
Sanded the edges smooth:
Screwed it down to a board and buffed the hell out of it with rubbing compound:
Ahhh, look at it glisten in all it's glorious inky blackness!
Here's where it'll eventually live:
I think I've settled on which circuit to build. An old friend told me about the Laney LH50 (Lionheart 50 watt), which is a two channel amp like this one. One side is like a classic Fender circuit, the other side is like a classic Marshall circuit, and I can build an A/B foot switch so I could go from one sound to the other. My friend told me that he would email the schematic, but I haven't heard back from him yet. I've looked all over the innernut but I haven't found one yet. I might just start copying bits from this layout and that layout and see what I come up with...
It's gonna be so cool!
Okay, you can go read somebody else's interesting journal entry now.
For those of you still reading, here's what I've been up to:
A couple days ago I figured out that I could use an LED bulb for the pilot lamp. It doesn't really look much different with the jewel in place, but it's one less thing I have to worry about replacing later...
Incandescent bulb:
LED:
Then I rewired the output jack and did away with the extension speaker output. I never used it and I think of it as a design flaw. It's handy if you have two 8 Ohm speaker cabinets (8 Ohms plus 8 Ohms equals 4 Ohms), but I have one 4 Ohm speaker cabinet, which is what the output transformer wants to see...
Okay, here comes the good part! Tonight I cut out my circuit board! Woohoo!
Here's the raw stock: a 12" x 12" piece of Garolite G-10 substrate, the same stuff I used for the rectifier board, only this is black:
I cut out a two and a half inch wide section:
Sanded the edges smooth:
Screwed it down to a board and buffed the hell out of it with rubbing compound:
Ahhh, look at it glisten in all it's glorious inky blackness!
Here's where it'll eventually live:
I think I've settled on which circuit to build. An old friend told me about the Laney LH50 (Lionheart 50 watt), which is a two channel amp like this one. One side is like a classic Fender circuit, the other side is like a classic Marshall circuit, and I can build an A/B foot switch so I could go from one sound to the other. My friend told me that he would email the schematic, but I haven't heard back from him yet. I've looked all over the innernut but I haven't found one yet. I might just start copying bits from this layout and that layout and see what I come up with...
It's gonna be so cool!
Okay, you can go read somebody else's interesting journal entry now.
VIEW 10 of 10 COMMENTS
sydfloyd:
Ha ha ha. Yeah. I really do look ridiculous most days though.
asilanne:
sounds like its really coming along, good for you, nothings as satisfying as seeing your efforts come together