bigfatpaulie
Headphoneus Supremus
Well, I am back on the wagon (ie, my wife is out of town for the weekend)!
I finished wiring everything on the main board…
Some of the capacitors are really, REALLY small. Nothing makes you feel old like trying to read one of these. First, I squinted. Then I used a magnifying glass. To my horror, I still couldn’t read them. Out came the macro lens. Geeze…
I mean look at that printing!! Wow. Anyway, my wire forest is built and ready for some boards!
The Mainline built sans boards.
The Bias Regulator Board attached and floating. The amp really is a sophisticated design.
The first C4S board, hooked up and ready to go!!
The assembled Mainline! Now it’s time for some testing.
Which went perfectly… Until I go to the LAST step – Bias side B. It is supposed to read 145v and adjusted by one of the 2 on board potentiometers. Well, I twiddled and noting… The voltage on the B side stubbornly stayed at 90v no matter what I did. I lifted all the boards, looked over everything and I could not find a miss solder anywhere. I tried biasing again. Nothing. I tested the resistances on the pots and they are fine. After about an hour, I realized I forgot to cut one of the leads on one of those tiny blue resistors and it was making a connection with a free tab on the socket.
Grrr…. Whatever. Life goes on. I found it, no sense on dwelling on the past. At least the fuse was installed in the amp, right?
Everything works and now it for the final touch!
The time it takes to build a one is nothing compared to the time it takes to deserve one…
It’s alive! IT’S ALIVE!!!
Well, folks that’s it until my new caps arrive. I was going to install them today as Canada Post tried to deliver them on Friday, but was at work.
The notice clearly says I can pick them up “Tomorrow after 13:00”. I went to get them but it really means is “Tomorrow after 13:00, if tomorrow is a business day”. So I guess it will be Monday. Once that’s done, it will be time for some seriously listening!!
It’s been a last building this amp. Thank you to everyone in the community and Doc for all your help.
All the best and happy listening everyone!
-Paul
I finished wiring everything on the main board…
Some of the capacitors are really, REALLY small. Nothing makes you feel old like trying to read one of these. First, I squinted. Then I used a magnifying glass. To my horror, I still couldn’t read them. Out came the macro lens. Geeze…
I mean look at that printing!! Wow. Anyway, my wire forest is built and ready for some boards!
The Mainline built sans boards.
The Bias Regulator Board attached and floating. The amp really is a sophisticated design.
The first C4S board, hooked up and ready to go!!
The assembled Mainline! Now it’s time for some testing.
Which went perfectly… Until I go to the LAST step – Bias side B. It is supposed to read 145v and adjusted by one of the 2 on board potentiometers. Well, I twiddled and noting… The voltage on the B side stubbornly stayed at 90v no matter what I did. I lifted all the boards, looked over everything and I could not find a miss solder anywhere. I tried biasing again. Nothing. I tested the resistances on the pots and they are fine. After about an hour, I realized I forgot to cut one of the leads on one of those tiny blue resistors and it was making a connection with a free tab on the socket.
Grrr…. Whatever. Life goes on. I found it, no sense on dwelling on the past. At least the fuse was installed in the amp, right?
Everything works and now it for the final touch!
The time it takes to build a one is nothing compared to the time it takes to deserve one…
It’s alive! IT’S ALIVE!!!
Well, folks that’s it until my new caps arrive. I was going to install them today as Canada Post tried to deliver them on Friday, but was at work.
The notice clearly says I can pick them up “Tomorrow after 13:00”. I went to get them but it really means is “Tomorrow after 13:00, if tomorrow is a business day”. So I guess it will be Monday. Once that’s done, it will be time for some seriously listening!!
It’s been a last building this amp. Thank you to everyone in the community and Doc for all your help.
All the best and happy listening everyone!
-Paul