Big Monk
Well-known member
I mean, the Marshall is toy essentially and only has one speed and zero headroom to speak of. Until 11:00 on the volume the Valve Jr. is essentially clean.
Aion Aperture (Ampeg Scrambler)
- Thread starter Big Monk
- Start date
I mean, the Marshall is toy essentially and only has one speed and zero headroom to speak of. Until 11:00 on the volume the Valve Jr. is essentially clean.
fig
Village Idiot
Maybe you're onto something. It could be why you carry an overall bad taste in your ears for Ge "real fuzz" Derek. To the ampmobile! Wait, does PedalPCB have an ampmobile?
Robert
Reverse Engineer
As a matter of fact....
PedalPCB.com on Instagram: "PedalPCB mobile workshop. 😀 #pedalpcb #diyguitar #diyguitarpedals #diypedals #diystompboxes #pedalbuilder #pedalporn #gearybusey"
219 likes, 22 comments - pedalpcb on October 30, 2018: "PedalPCB mobile workshop. 😀 #pedalpcb #diyguitar #diyguitarpedals #diypedals #diystompboxes #pedalbuilder #pedalporn #gearybusey".
www.instagram.com
Coda
Well-known member
I’m not familiar with the amp (toy) but I’ve found that digital/solid state circuits (regardless of size/power) tend to have more headroom by nature. I’ve had an issue with fuzzes that sound very fuzzy and gnarly through a Blues Jr, but almost sterile through my big solid-state amp. I’ve also seen the opposite: some pedals shine with infinite headroom, other need a little help…
fig
Village Idiot
From what I understand that is the target Vf for that circuit.
fig
Village Idiot
Impressive! I can pull that easily....to NY! [cue montage muzak]
We'll need to make a stop @ Mojotone on the coast here in NC, then jump back on I-95....
Big Monk
Well-known member
This is different though. I run a Big Muff, RAT, etc. full tilt through it.
It’s likely an error somewhere. I’ll go through and check everything again. The voltages seemed fine. I compare them to the GGG numbers and scaled them on a percentage basis with my Vnom and they were dead on.
Could also be bad transistors and/or diodes. NOS is awesome when it does what you want but sometimes…
I will have a functioning Scrambler. If I decide to do it over I’ll go Madbean this time and run of the mill semiconductors.
Paradox916
Well-known member
Maybe the Valve Jr is allergic to eggs.
Coda
Well-known member
Big Muffs and Rats can handle a bit of heat. Maybe the Scrambler can’t? I know my Super Fuzz build sounds better through some dirt, and a bit sterile through high headroom. The Scrambler may need a lot of clean. Maybe I’ll build one and test it. How hard can it be?…
Last edited:
fig
Village Idiot
Certainly, If that meets your goal. No one would argue you've dealt with your share of issues with this one.
Big Monk
Well-known member
I just did a comparison quick of my voltages and the GGG voltages in Excel:
Q2 and Q4 look like outliers and some of my voltages are almost 10% off of the GGG values.
fig
Village Idiot
Theoretically...or empirically ?
fig
Village Idiot
Do you think 10% would account for the issue?
fig
Village Idiot
years ago I'm afraid. It was a single avenue of escape from the grinding of the gears.
