Watching competent people fixing anything should give us a little insight into the challenges that we don't have to worry so much about. Maybe some,if they watch enough ,may work out that lots more `things' can be repaired rather than discarded

You must be British.

@@Jaggedknife11 nah, I live in new england

@@davidfuller581 huh funny. I guess i always associated knob=dick with British slang.

I remember that Peavey manufactured in the late 70's or early 80's at least Bass combo amplifiers which were pure transistor amps but the output stage used OT. A friend of mine asked me to install send/return into it which I did (this happened in 1987 or 1988) and I remember that I was a bit surprised when I saw the OT when opening it. Perhaps because of that OT it sounded IMHO quite good as well when I tried it then with my 1972 Gibson SG. (BTW that Gibson was a totally wonderful guitar but I was stupid and I sold it, and I still regret selling it. But that's totally another story.)

You can also make spacers out of thin plastic to hold the splines apart. It's a bit fiddly, but it works.

Never try to bend back pot-metal shafts. Generally, aluminium and to a lesser degree, brass, are malleable enough to have success if done carefully.

James brown. Nice man and has made a ton of great amps and pedals. Good interview on tone talk

@@alanmcdonald6551 for sure!

I think he may have said it sounded the same.

James has said that it sounded bad. Something about a handwired one didn't perform/interact as good as the Prototypes Eddie had built for him (prior to production launch).

More like the Trump family

@@gingercat777 Brainwashed.

Yeah - he marked the holes where he was going to drill, but then drilled them at the wrong spot, right? At 15:53 he makes marks to draw his center lines. Then at 16:45 he marks the spot for the mounting holes. But at 17:18 he uses the *centerline* marks instead of the *mounting hole* marks...

The Waza is actually the worst. Suhr, two notes and fryette are better options!

@@evh1eddie1rocks what’s with Waza? Also, two notes fails on the impedance curve.

@@lordgraga the two notes actually has a a generic speaker curve that is actually suited for most IR’s. The Waza fails on the speaker curve and Doesn’t dissipate the amps load properly. Puts a lot of strain of the output transformer from the info I’ve looked into Love the idea of the built in effects with the Waza. The speaker speaker is exactly the reason why I didn’t choose this. It’s discussed in one of Dave Friedman’s tone talks

Four 6L6s, about the same primary impedance, “100W” rating (5150 is marketed as 120W but that’s selective measurement). And as there are no 5150 replacements from PV…

@@PsionicAudio and there it is, the wattage difference, I figured 5150's were too high... what do you mean by "selective"? And yes it's a shame what has become of Peavey.

A 100W Marshall can put out 120W+ spikes. But its output at the onset of distortion is 100W. Which do you put in the sales literature? The 5150 voltages are close to a Twin’s. And none of the overdrive is really coming from the power section in this amp.

@@PsionicAudio Got it, thanks much. I was thinking maybe Peavey based it on that

I emailed them a few months back and asked them about this exact transformer for a 6505+ and they recommended not to use this one. 🤷‍♂️

That part was a drag. Just jealous of how the connectors easily slid off.

If I were to get one I’d get the Suhr.

@@PsionicAudio A competent choice indeed

@@nikonmikon8915 So is the OX dangerous then? Will it blow my transformers? I would really love a clear answer on this. The Suhr is great but it isn't an attenuator. Which attenuators are safe? Does the Ironman II provide a proper curve?

@@dwaynedelario No the Ironman is another one that's barely "reactive", the masterplant guy posted some PDF's of his curve tracing of different products and they're abysmal. Aracom supposedly does it right, and the masterplant attenuator (obviously) does it properly as well. UA's response to people on their forums questioning this has been "how does it sound to you". I feel like this is a BS answer and avoids the issue. I know someone who was using a two notes with their Mesa Mark V and I told them about this and they switched to the Suhr and their tone changed. He said that he just accepted the awful low end, thought it was how the amp was supposed to sound... So how does it sound? probably bad. Does UA care? Not one bit. Every big name KZfaqr has one in the fucking background of their videos reinforcing the false notion that their unit is good. It's not and it's expensive. Go figure....

@@nikonmikon8915 Well this is a massive bummer. I actually like the sounds I get from the app, but the attenuated signal is fairly lacking. My biggest concern is that the Ox causes one of my bias modulated tremolo amps to thump. I am guessing the bathtub curve is involved. I can't risk any transformers going down or being slowly destroyed. Guess it's time to sell the Ox. I really did NOT want to get involved with IRs. Do you have a favorite IR loader?

Your witty or actual witty?

@@PsionicAudio There once was a man with angina.....

Yes, at a high cost to the owner.

Well, ones worth having are expensive. I don’t buy anything from that site.

@@PsionicAudio Well given it a tube with a handle not so much in this case . That said there are a large number of very poor quality item on that site buyer beware. The point about that molex connector being a poor choose for the voltage in question does stand.

I trust John.

I wonder what the people who have problems are using. I'm not about to trust a cranked amp to the cheapest possible attenuator. (Full disclosure-I have a Fryette PS-2, and I have full confidence in that thing.) I also wonder when people blow up their amp with an attenuator, if they realized how hard the amp is actually working. For just about anything that's not new, I'd have a tech look over anything I intended to ride hard, just to tag any weak spots. One of the things I've learned from these kinds of videos is that if you do certain things wrong, other things can fail in an impressive (and potentially expensive) way.

@@cpfs936 all good points. I appreciate how hard my amp is working when using a load box because the fans in the load box are going nuts and the box is still getting hot despite all that airflow 😂

Thanks very much. I mostly use Kester 60/40 .03whatever. I use different wire for different amps and different parts of circuit. You have to know the current. In general 18AWG for octal heaters, then 20AWG to preamp heaters. Almost everything else in most amps can be 22AWG. I prefer teflon coated stranded.

@@PsionicAudio I found the solder thank you 🍻. Is there a preferable brand of wire you like? Is there a maximum voltage? You are the man! Look forward to your tone talk 👍🏻

Thanks. If you’re just starting out, tubedepot.com has a good selection of teflon coated wire.

@@PsionicAudio It's great stuff, but a little slick to cut for newbs.

Any other requests? Want us to order you some UberEats? You allergic to peanuts or anything?

@@BradsGuitarGarage lol cunny funt Brad

Uncle Doug was the first of these channels I discovered. It's not surprising that he used to be a teacher. I'll bet he was a good one!

@@cpfs936 yes I subbed that channel years ago. Uncle Doug is fantastic

I had a speaker cable fail open to one of my cabinets. The amp was set to 8ohms and the working speakers were 16. Sounded thin and no bass response. Also was way down on volume. Luckily I stopped and didn’t burn up the transformer.

fwiw, i just built the deluxe micro off there, used hammond stuff from mouser.

The Champ chassis is really cramped so if that's the style of build you're going for, I would avoid transformers with extra taps you won't use because those are just extra wires you have to tape off and tuck out of the way. For example, a 'generic' Champ power transformers (like the Hammond 291AEX) will have 100V, 110V, 120V and 240V taps on the primary. Also, you don't necessarily need a PT with an HV center tap. You can make an artificial center tap with a pair of 100 Ohm resistors (this doesn't make a big difference in terms of lead dress, but there are some other advantages to the resistor method that are worth researching). Same principle applies with output transformers. Some will have taps for 4, 8, and 16 Ohm speaker loads so if you're just building the 1x8 combo, you don't need those extra wires. The point being you can order a Champ-spec transformer with all the taps you need and none of the taps you don't, and that will make your build a little easier and cleaner if such things matter to you. I really like Rob Robinette's Champ layout. Also worth looking into Doug Hoffman's layout (he's an excellent guy to buy materials and eyelet boards from as well). That said if I were going to recommend a Champ-style build to someone today, I'd recommend the 5F2 Princeton since it's 98% the same as a Champ but the larger chassis makes for an easier, cleaner looking build.

@@testing1two547 I have been in contact with Doug too. Having a heck of a time uploading the board I want. As far as chassis. This build is going into a old radio chassis and cab. There's plenty of room.

I think you can get transformers rewound, but I'll bet it ain't cheap to have it done right!

Like with guitar pickups, transformer rewinds are usually only economically viable if you want to preserve the originality of an amp. Think of it like making one, but needing to take the time to break one carefully, first. The latter often takes longer than the former (no pun intended).

Peavey’s parts department is just about gone. I looked for OEM replacements, all out of stock. Rewinding a transformer is a pretty big expense so the Hammond made sense. And dollars.

@@PsionicAudio Yes, in this case Hammond OT was probably a very good choise. (Except that you had to drill some extra holes. Drilling holes to chassis is something I personally love to hate.) I just quite recently tested one Hammond OT I purchased some time ago. Voltage ratio was perfectly spot on and it exceeded promised frequency response. Seems that they know what they are doing.

Brown added a couple of non cathode bypassed gain stages instead of the fifth stage cathode follower and directly drives the tone stack like a mesa mark series. At least he had the decency to tweak the design unlike Randall Smith who just literally copied Mike's work for the dual rec.

@@Swodie_Jeetin I've read that Mike copied Randall's design & that Randall copied Mike's design. Anyone know for fact which is true? Who came up with the original design?

@@scotthowe1972 Neither of those amps sound the same.