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Saw this at a st park in central OK. Slightly sticky with a lemony/citronella scent. About 6.5' tall. No leaves left on stems, fully/entirely seeded. Several of these in a planting off a trail. Brought back some memories.

I got the fx loop pcb, waiting on some stand offs. I wired the 6sj7 back in. Messed around with raising plate voltage a hair. Now adding some more input impedance. I am about to wire up the next slot for cathode biased 6sj7. I will play with that. Decide if I want to keep the grid leak biased...

I could see that being better. I also want to play around with "almost too much" on the 1st stage and using the 2nd stage to choke it way down. I ordered another 6SL7. They are still; the grids and plates are tied together respectively, and they already share a common cathode. Just 1 big triode...

I had to go to a 20k cathode resistor to get the squeal to stop. Or at least go beyond my hearing range. No oscilloscope to check if it still there. So, it neutered the amp. Real calm and clean. Just a touch of crunch. Like an old, little amp. So, I wired up a second stage just like the 1st...

I'm getting real close to getting rid of the squeal. 10k cathode resistor gets up to 9 on the dial before it starts. And there is still some good crunch on tap. 22k gets a very polite,clean amp that is on the verge of crunch when dimed. Get this amp hooked up with 12k or so on cathode and I...

USA

Thanks, man. I've been reading about grid resistors. Going to throw much higher values in there and see how it goes. Later: It didn't do anything. I have a 1M resistor to ground on jack, and a 68k grid resistor. I started reducing plate resistor. No reduction of anything happened down to 22k...

I took liberties with eq, compression, delay, and reverb. But here is the amp set to 3 to 4 on rhythm part and set to 6 to 7 on lead part. Adding 1M resistor on input tip to ground didn't fix it. Everything is good until the amp volume hits 7.5 when the high pitched whining begins. Guitar volume...

Yeah, I saw somewhere about whining tube could be fixed with cathode bypass cap and/or grid resistor. My issue hopefully is related to the resistor to ground. Or perhaps just these tubes. A lot of microphonics talk happens around octals in the forum posts.I will get back to it and see what...

I must have had a bad solder joint somewhere. I unhooked the 6sc7's and seperately,both work. I am having no problem overdriving this amp. I may need to get my meter in there. I should check output tubes plate disapation. And I have 2 taps on input transformer. 115v and 130v. It is set on 130v...

The volume knob is behind both tubes before PI. I will draw out what I have going on for a circuit. Not that it matters. Things are in constant flux right now.

I do now. Not any cleaner or more headroom before grind, but the distortion tightened up nicely. The oscillation at highest volume setting changed too. More of a throb than a doppler effect tone. I will keep at it. I need some cleans from it, and I can always lower the input signal, but having...

Had a minute between duties today, so I added a couple of 200Ω grid stoppers. It's getting better. Nice cleans for a second, but mostly raunchy filth. At the higher volume settings I have a low toned oscillation. Too much still. I will start adjusting resistors. Brush up on load lines and bias...

I got a sexy shoulders 5y3. No tone, but it looks cool.

Unfortunate news, I may be losing my mind. I was turning a volume knob wired to nothing. Fisher Price amp for this big boy. I have sound. It is shit. Too much signal. The amp takes a long warm up time to give sound, then with volume low, the sound sputters out like a voltage starved transistor...

There is a 3rd 6sc7 now where the 6sq7 was. I wired the inputs together on first tube. Then from the 1st into the 2nd with its inputs tied together, and on to PI. I will dig into it this week. Got it back where I can work on it. Will make sure both parts work and then put them together again. I...

I meant every .047uf cap got replaced with .47uf caps. LOL. So, I just now replaced those caps with .1uf caps. I left the .47uf input cap and the .47uf cap on the power switch circuit. I got improved high end clarity, lost the slight throbbing effect with the volume dimed, and gained a hair of...

Yes. There has to be more to it that I'm just not getting. The store is very important. That's why I choose the Ol' Git'N'Go over 7-11. When I purchase from the soda tenders there I know my sugary fizzy drink will be better quality. They make their own sodas. That's a better store than a store...

You are asking the wrong question. No one, I repeat, NO ONE gives a shit about the store. It is legal access to marijuana. When it was illegal, I would park my car in the worst part of okc, walk into a tiny house with a guy on the couch working triple beams, and a guy with an automatic rifle...