YAOB (yet another one-zero-two build)

martin manning · Post by **martin manning** » Sun Jul 22, 2012 9:05 pm

Sounds good! Do check the FET voltage and bias now that you've raised the voltage feeding it... At 24V it was a little high when you started.

aflynt · Post by **aflynt** » Sun Jul 22, 2012 9:54 pm

martin manning wrote:Sounds good! Do check the FET voltage and bias now that you've raised the voltage feeding it... At 24V it was a little high when you started.

Thanks! I forgot about that. I just boxed it up too! The good news is that the FET input sounds pretty good anyway. It looks pretty funny in the rack case. I'm going to have to buy a nice head shell for it once I get the money together.
-Aaron

aflynt · Post by **aflynt** » Mon Jul 23, 2012 1:55 pm

Here it is all boxed up. It looks a little funky in the rack bag, but it seems to fit just fine.

[img

764]http://www.aaronflynt.com/wp-content/up ... 24x764.jpg[/img]

-Aaron

guitardude57 · Post by **guitardude57** » Mon Jul 23, 2012 2:00 pm

It's OK Brother... whatever works until you get a head box.

Play it a bunch. As the components settle in, it will sound better as it goes.

Nice job.

aflynt · Post by **aflynt** » Mon Jul 23, 2012 2:15 pm

guitardude57 wrote:It's OK Brother... whatever works until you get a head box.

Play it a bunch. As the components settle in, it will sound better as it goes.

Nice job.

Thanks! It already sounds pretty amazing I think. This is my first time playing through one of these types of amps, and it's a real eye-opener. The overdrive kind of reminds me a bit of the old tweed Fenders, but much bigger and more refined. The amp really makes you want to play and the range of expressiveness is wonderful.

I'd like to thank everyone here again for all the help!

-Aaron

Structo · Post by **Structo** » Mon Jul 23, 2012 2:17 pm

I may have missed it but if you have the 68pf bright cap on the Master, it will be pretty bright (too bright for me) if you don't have the master up past half way.

I believe I settled for a 30pf bright cap on my amp which is part #102 and part #183.

A Dumbleator will also smooth things out.

aflynt · Post by **aflynt** » Mon Jul 23, 2012 2:26 pm

Structo wrote:I may have missed it but if you have the 68pf bright cap on the Master, it will be pretty bright (too bright for me) if you don't have the master up past half way.

I believe I settled for a 30pf bright cap on my amp which is part #102 and part #183.

A Dumbleator will also smooth things out.

I might experiment with that after I get the D'Lator built. I have the 68pf in there right now. Half way up is louder than hell so I've just been noodling with it between 1 and 3 right now and it sounds great down low. I did notice the sound starting to congeal more as it gets louder, but it really does sound great down low too if you don't crank the drive too much. It's perfect for me since I really don't like a lot of gain anyway.

One thing I have noticed though is that the clean channel doesn't really break up much at all even when cranked. I'm thinking is because the 1M pot I pulled out of the Quad Reverb for it only measures about 820K or so.

-Aaron

guitardude57 · Post by **guitardude57** » Mon Jul 23, 2012 2:30 pm

I don't have a R/J switch wired into my build, so mine isn't too bright.

There is a D Lator built in, since I had the extra tube from the old Bassman 70 that it once was. I can switch it in/out from the front... definitely smoother with.

And my gain dump pot for the OD is mounted on the back and marked for a D type OD. I use it mainly with a little higher gain than typical, and love it.
I can use this amp with my Steely Dan tribute, or my Blues Rock band with awesome results.

dcribbs1412 · Post by **dcribbs1412** » Mon Jul 23, 2012 2:34 pm

Congrats on a great sounding build -Aaron
The mix of nos parts and old iron sounds great.
Both clips sound nice...some really cool chops in there...funky jazzy and bluesy(love the flamenco around 3:30 of dirty clip out of nowhere)what was your recording setup?

Darin

aflynt · Post by **aflynt** » Mon Jul 23, 2012 2:38 pm

dcribbs1412 wrote:Congrats on a great sounding build -Aaron
The mix of nos parts and old iron sounds great.
Both clips sound nice...some really cool chops in there...funky jazzy and bluesy(love the flamenco around 3:30 of dirty clip out of nowhere)what was your recording setup?

Darin

Thanks! It was just a video shot on my iPhone that I ripped the soundtrack off and converted to an aif.

In reality it's a bit less compressed sounding and a bit more present. I had the master at about 3 1/2 so it was moderately loud.

-Aaron

Structo · Post by **Structo** » Mon Jul 23, 2012 2:47 pm

These 100w amps have a great clean amp, they get very loud before any breakup.

Dr d · Post by **Dr d** » Wed Jul 25, 2012 12:05 pm

Just heard your clips.... Sounds wonderful! Really dumbley! I am sure that the use of NOS resistors helps tremendously with the tone. Great effort and thank you for sharing your build.

aflynt · Post by **aflynt** » Wed Jul 25, 2012 1:47 pm

Thanks! I finished the Dumbleator last night. I just used the C'Lator kit since I was having trouble locating a reasonable priced chassis. It definitely smooths out the sound and gets rid of all the nasty fizz and fuzz artifacts that I was getting when really hitting the strings hard. It's also an absolutely perfect master volume. I'm glad I kept the 68pf on the master though since it's WAY darker with the D'lator hooked up. I might actually wind up using the second bright switch.

I'm not sure if it's the NOS parts, dumb luck or what, but this thing sounds unbelievably amazing. I'd like to thank everyone on this forum and everyone who helped trace this circuit and I suppose the original Dr. D too (not that he's reading this). It was a lot of work getting to this point, but it's been absolutely worth it.

-Aaron

guitardude57 · Post by **guitardude57** » Wed Jul 25, 2012 1:57 pm

Good job!

Play the shit out of it, over the next few weeks.
Try it with all your guitars and see what you like or don't like about the amp. Then, do your tweaking on it. This is the main reason Howard takes his time getting his amps out to the buyer. Eliminate any issues after a good burn-in time.

With any luck, all of your fizz artifacts will go away.
If not, then is the time, to find out where they are.. get them out of there.
You don't want any weird stuff sounding out, with or without the D-lator.

Mike

aflynt · Post by **aflynt** » Wed Jul 25, 2012 2:16 pm

It's kind of weird, but I really didn't mind the fizz all that much. It was only really apparent when I had the amp down real low (below 3 1/2) and really hit high notes hard. I found that most of the great tones were in the lower end to middle of the dynamic range anyway. It's almost like you can just breathe on the strings and still hear it. Without the D'Lator I just needed to the amp to gig volume and then I could hit the strings hard when I wanted a more pointed, toothy sound and it sounded agressive not fuzzy. I haven't played around with the D'Lator enough to find out if it still does that.

-Aaron

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