You know this I'm sure. A gain stage flips the phase and you want to keep high potential signals away from lower potential signals with same phase. When I build, I just count: plus one, zero, plus one, etc. so I know what's going on. If same phase leads have to cross, its at right angles, but better if they don't. Coupling caps spit signal all over the place. If you use foil and film caps, you can put the outer foil to the most grounded side. Metallized film caps don't have an outer foil, so there's nothing that can be done. Gerald Weber noted that the 5E3 Deluxe had a coupling cap too close to the input jacks. Fed back sometimes.lord preset wrote:It's easy to be be neat with no lead wiresFirestorm wrote:I'm excited! Merlin heaters (yay), looks like black Garolite (my preference). Tidy. I didn't count the inversions but sometimes the cleanest looking amps have problems with phase proximity. Not a criticism at all, but I've built beautiful amps that oscillated. Fender, too. Full speed ahead!![]()
Re. inversions and phase proximity I am not following. Could you elaborate?
Tweed Bluezmeister build
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Re: Tweed Bluezmeister build
- lord preset
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Re: Tweed Bluezmeister build
You are giving me too much credit.
And if the Flying Spaghetti Monster had intended for us worry about foil orentation he would have marked the foil end of the Orange drop with his noodly appendage.
- lord preset
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Re: Tweed Bluezmeister build
All wired and ready to make the smoke. Now for the Staring and Fretting stage where I procrastinate before applying power.
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- lord preset
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Re: Tweed Bluezmeister build
Well this is embarrassing. Thank you again Light Bulb Limiter.
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Re: Tweed Bluezmeister build
Yikes. I use that limiter every power up. Not boasting, but it hasn't saved me yet. Slaveishly careful. I cook the same way, everything just so. Could never run a restaurant.
Re: Tweed Bluezmeister build
Those look like 715P caps. Metallized. No outer foil. I don't know what you're having the relays do, but the leads are parallel. Might be fine. Related leads can even be twisted. If the relays are just tone related, that's okay. But a lead that comes off a coupling cap (including tone ones) is usually a grid lead.
- lord preset
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Re: Tweed Bluezmeister build
They are 715s. The relays are for OD/Clean and Boost. I think the parallel wires to the relays you are seeing are just going to the footswitch jack - so no signal. In any case I have bigger fish to burn. The amp passed the tubes-in light bulb test so I fired it up and it plays but has issues. The clean channel is plenty loud but dark with very little headroom. The OD channel is MIA. No sound. So I messed up the front panel wiring and/or the relay hookup, which is a PITA since things are very tight in there. Voltage on V2b is way high.
So lots of things to keep me busy.
So lots of things to keep me busy.
Re: Tweed Bluezmeister build
Is there an update to this build? I'm rooting for you!
With respect, 10thtx
With respect, 10thtx
- lord preset
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Re: Tweed Bluezmeister build
Been sidetracked by inconvenient non-amp stuff so no real progress to report but I will get there. I will need to keep this on the back burner a bit more as I have a real live customer for a Princeton-ish build. A customer. How novel.10thTx wrote:Is there an update to this build? I'm rooting for you!
With respect, 10thtx
- lord preset
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Re: Tweed Bluezmeister build
Yes. And I posted a picture. How's that for self-flagellation?Structo wrote:So was that one diode backwards?