SpiderWars
Well-known member
Looks great! That's a lot of switches to wire up!
MadAsAHatter
Well-known member
You may call it a rat's nest but it looks fairly well organized so far to me. I have the hardest time keeping things like that tidy.
ledvedder
Well-known member
A few small updates. I've started wiring the turret board.
M
Mikeyboyeee
Well-known member
Lookin good.
ledvedder
Well-known member
I also started wiring the switches. I'm just about to the point where I'm gonna have to screw the turret board in and start connecting all the wires.
ledvedder
Well-known member
I did some input jack and bright switch wiring tonight. That bright switch was tough.
ledvedder
Well-known member
Well my build is getting there, slowly but surely. It's not as clean as I was envisioning, but I guess I can always go back and redo some spots.
MadAsAHatter
Well-known member
Your build is coming along nicely and looking pretty good.
ledvedder
Well-known member
I finished the wiring of the tonestack bypass switch and split/shared v1 cathode switch today, as well as v1 and v2. Now on to wiring the pot side of the board.
SpiderWars
Well-known member
Looks great!
If I'm not mistaken that rectifier protection you have requires you to use a GZ34/5AR4 exclusively. Maybe some others but you can't do the typical rectifier substitutions or very bad things could happen. Just wanted to mention it in case you didn't know. I made sure to label the one amp I did that to just to be sure it would be there.
And since it has a GZ34/5AR4, it will be much healthier for that tube if you just flip the Standby switch ON and then NEVER use it. Always just turn it ON and let it soft start with the GZ34. Way better.
If I'm not mistaken that rectifier protection you have requires you to use a GZ34/5AR4 exclusively. Maybe some others but you can't do the typical rectifier substitutions or very bad things could happen. Just wanted to mention it in case you didn't know. I made sure to label the one amp I did that to just to be sure it would be there.
And since it has a GZ34/5AR4, it will be much healthier for that tube if you just flip the Standby switch ON and then NEVER use it. Always just turn it ON and let it soft start with the GZ34. Way better.
ledvedder
Well-known member
Can you explain this a bit more? I've never had an amp with a tube rectifier, so I'm not well versed in them. I did buy a JJ GZ34 to use for this amp.Looks great!
If I'm not mistaken that rectifier protection you have requires you to use a GZ34/5AR4 exclusively. Maybe some others but you can't do the typical rectifier substitutions or very bad things could happen. Just wanted to mention it in case you didn't know. I made sure to label the one amp I did that to just to be sure it would be there.
And since it has a GZ34/5AR4, it will be much healthier for that tube if you just flip the Standby switch ON and then NEVER use it. Always just turn it ON and let it soft start with the GZ34. Way better.
SpiderWars
Well-known member
If you use the Standby, you'll be causing an inrush of current thru the tube rectifier. The GZ34 has an indirectly heated cathode and so it doesn't get hot enough to emit electrons immediately, it slowly warms up. So if you turn it ON with Standby already ON the amp just slowly 'fades in' and is a really easy start.
Regarding the rectifier protection, some of those pins you used for the diodes are used by other rectifiers. But they are NOT used by a GZ34, which is why you could use them in the first place. You are actually going 'thru' the SS diodes first and they actually do the rectification. now. But you get the tone/sag/voltage drop of the tube rectifier. Nobody cares which one is actually doing the rectification part.
ledvedder
Well-known member
This particular amp is switchable between SS or tube rectifier.
SpiderWars
Well-known member
I know. Not using a Standby won't hurt anything in SS rectifier mode. That case doesn't really matter. But using a Standby with a tube rectifier actually stresses the tube rectifier. It probably won't matter, lots of amp have it and no issues.
ledvedder
Well-known member
I cleaned up the preamp tube wiring a bit, along with the switch wiring. Then I started wiring the pots.
ledvedder
Well-known member
Some control and input jack wiring tonight. Now I'm starting with the shielded wire runs. Such a pita!
ledvedder
Well-known member
I had a little time this afternoon to start some of the shielded runs. That run to the V1B cap switch was a tough one for sure!
ledvedder
Well-known member
Well, I'm basically done, except for the effects loop. I wonder if there's any testing I can perform without the effects loop installed?
ledvedder
Well-known member
I started the effects loop wiring tonight. Lots of shielded coax all in one spot. Ugh!
ledvedder
Well-known member
First power up tomorrow (fingers crossed).
