I will be your official "Master Announcer, Nascent Sorter of the Thicc, Ingenious, Crass, and Killer". You may now bow to me.
That is to say: I will judge your memes. And I will find them to be wanting.
Bring me your memes. For the contest, I will be submitting my own build so I may mercilessly savage your builds. That said: I will *not* be eligible for any prizes!!!! (I asked, Friend the Additional Injury said "no" and "are you serious?". And " I gotta rethink this whole partnership thing...corrupt ass second dimension *unintelligible*...").
That said: I will absolutely accept bribes when it comes to the hate category, with the understanding that I promise nothing and somebody may outbribe you and I am under no obligation to let you know.
But...when it comes to the official contest, I am aghast that you might suggest that I would do such a thing. The nerve! I am a Stickman of honor!
I WILL ALSO BE SUPPLYING THE PRIZE FOR BEST HATE. Details to come soon. Guaranteed to be chock full of insanity, eldritch horrors, and the devil himself.
LET THERE BE FUN AND NOT EXCESSIVELY UNKIND HATE. LIKE, HATERADE LIGHT. HALF CAF. SOMETHING REASONABLE FOLKS.
If you’re low on parts, you can build a no-pass filter.
I’m a bit sad that I don’t quite have the parts I need to finish my 60w pedal amp with DBA circuits as the preamps and an integrated crap-fi delay. I considered cheating, but knew I couldn’t live with myself.
I’ll still try making something offensive. Possibly with lots of PT2399s
Here's me thinking I don't hate on anything here. And then I remembered my thoughtless assault on the wah pedal which broke Stickman's heart. I'm not sure I can live with myself.
Here's me thinking I don't hate on anything here. And then I remembered my thoughtless assault on the wah pedal which broke Stickman's heart. I'm not sure I can live with myself.
Initial thinking.. based around a Universal Audio 176 compressor... which is the predecessor to the 1176 compressor... which the Cali76 is based on.. my version does away with the expensive line transformers. I'm also running low gain tubes I have lying around (I have 4xecc99s and 2x12bh7a-strs, I have a few torrid for power etc and a few HV maida power regulators that have 3080 LDOs in for near absolute silent supplies).
Initially playing with the idea with lower voltage (just 117Vac) and seeing what I can get working. It also means I can run them stacked off my bench supply and have the joy of current limiting.
This is with +4dBu professional input.. and a good 160Vpp output ... oops but this is the compressor detecting (just needs more tuning as too do the resistances for tubes and scaling):
EDIT Update...
This looks like it's working.. input bias on the top dropping and the output is being compressed:
While I am not eligible for prizes, I do want to submit my build for future hate. The build is functional, but the enclosure artwork is nonexistent yet. This is a PCB of Chuck's 'lectric Mama flanger and it works great. I don't think I'm a fan of flanger, but dialed back it makes a nice chorus and fills up my tone even with a lot of dirt thrown in it. I borked an enclosure since there's no drill template, then I did it again but saved it with some JB weld. Knobs are temporary unless this is the theme i'm going for. Not happy with the wiring, but oh well. Box it up and you won't hear the difference.
Cracking on with this, although I'm having to voltage divide the grid voltages aka JCM-style.
This isn't entirely working - it scales up, it attempts to drop the grid bias on the first differential amp but currently it still has enough current flowing to make a large output. The ecc99 has a nice idle point at 24mA and a max of 60mA!
The way the 176 works is simple - this is a cut down variant without some of the other hardware.
The left pair of triodes is a gain changing differential amp, this feeds into another gain stage differential amp, that then feeds into the final gain stage differential amp. I've added a cathode follower to line drive -I'll explain in a minute.
The bottom section is the gain control. This is where it gets a bit brain twistery.. it takes both phases (ie top and bottom of the wave form). It then negative rectifies the those wave forms - what that means is it takes the largest up or down from the centre position of the wave form but rectifies it negative. So it creates a negative DC voltage.
This negative voltage then pulls down on the idle point of the grid of the gain changing, so it makes the grid more negative and reduces the volume (gain) of the signal amplification.
The pain in the behind is that you need to calculate the wave form max sizes, so that it can be scaled to the tube grid and that varies between tube types. The wave form is created by the third gain stage (that's why it had a weird set of selectable resistors).
To minimise output impact on this wave form, rather than have that plate drive the output, instead I use a paralleled cathode follow additional stage to provide current drive. I then put a voltage divider to scale down the output ... did I say I gots gain?
I'm currently at a point where the grid is being pulled down but there's too much gain. I'm sort of thinking that the second gain stage isn't really required... In the original version it uses a 12ax7 stage for high gain but then switches to a lower gain for the final drive for the gain control stage.
I could possibly switch the first ecc99 to being that 12bh7a and do away with a current hungry tube.. I like the ecc99 but how many 300V transformers do you know with lots of 120mA secondaries! I can probably drop the parallel ecc99 and just use one trade for the CF.
I'm severely tempted to use an opamp on the gain control for but that's more phase shift so better keep it simple..
As always.. this is an experiment.. and better to mess it up first on the desktop before getting a lovely 180 phase feedback by accident on the bench.
I won't be building for a week or two at best, so you'll have to hate on the latest Core Shaper I whipped up. Definitely deserves some hate for my dodgy phone camera skills.