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Or, just regulate the 9 to 5 before the inverter. +/-5 out.

Learnt something new today. That would have saved me some parts

Had a think about this. I imagine just a charge pump LT1054 inverting to -9v and then a 337 adjusted to -5v
Then from the 9v input a standard 5v regulator 78L05 should do the trick

Hey everyone

I recently acquired a 78 IC deluxe big muff - the first version with the blend switch
Schematic is here https://postimg.cc/F7LVjGz1

It came with a 110v transformer and plug, and Im in the 240v UK
So I took an EHX transformer from another 70s pedal I have (Clone Theory) and wired it up.
Pedal works as it should, to the best of my knowledge

Two issues however.
1 - ideally I want to get rid of the noisy transformer
2 - its getting quite hot in operation and Im not sure thats normal / risky. Not too hot to touch but very warm
3 - the pedal uses a wierd power supply set up with a rectifier diode, and Ne5554n regulator chip

The power requiremens are basically bipolar +5v and -5v

I am wondering however if its possible to run it just off +9v and ground?
Alternatively, does anyone have a nifty circuit to make +5v and -5v like a RoadRage but different??

Thanks for the help!

Ian

So glad this wasnt just me

Sorry for the insomnia and doubts!

Thanks for everyones thoughts

I got some new solder in the post and its working great.

so it must be an off roll of solder, or its oxidized / aged and the flux has "died" somehow.

I also got some flux that I can try with the "off" reel and see if that helps

cheers

When I purchased the replacement I went to the vendor and I am confident its a genuine part.

Its certainly seems consistently hot....

Its super wierd. Will update when I get new solder and flux

regards tinning the tip, the solder just wont stick to it. And this is brand new, expensive tips too not old ones.

Hi All

Looking for some advice.
I have used the same soldering station for a long time, a Xytronic LF-1680
Its electronically controlled and can set the temp.

Ive always used (dont judge!) 60/40 solder, 1mm, rosin flux coated.
Ive never really needed extra flux.

Recently the iron tip thing broke - not the metal tip, but the ceramic part inside somehow.
I ended up replacing the whole "wand" as it was better value to do so.

Now, fast forward a little bit, I am really struggling with cold joints. Ive replaced the tip multiple times. I havent changed brand of solder.

Any ideas wtf is going on? Can solder go off?
Ive ordered some more solder, and some additional stand-alone flux to try and figure this out.
Its sooo wierd, Ive never had this issue in like 15 years.

thanks

Sorry having a lot of forum problems.
It seems to vary, right now the forum appears grey/blue and works only from my PC

In the past weeks its varied from this colour to a brown colour etc and will or wont let me login or post
including saying I am banned etc. I dont recall ever being banned before

Apologies if considered spam, and feel free to delete.

If anyone knows the latest, PM me?

very cool

testinh if this works.

Lace

Too many phasers does not exist. There is only more.


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There is no Dana only Zuul

so I grabbed one of these
It sounds really quite good - beyond expectations actually. The build quality is very standard but the casing, presentation and little touches inc the documentation are quite nice additions.

Those knobs look 100% better! It would probably look great with these knobs as well:

Yeah maybe but I feel thats a Klon vibe and its not really EHX, so would mix the metaphor somewhat

You say it sounds good, did the circuit change any?


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Found this on the EHX forums

From the KITRAE website resource, it feels like a mix of parts values across various Rams Head iterations.
I couldnt find the Nano Rams Head or JMascis schematics to compare to. It was meant to be the same as those but in thru hole.

Waiting for $1000 on Reverb lolz to commence

Anywhere from $650 to $1200 

Wow. And heres me being boring and, you know, playing it a bit, and planning on keeping it til I die.

Did you change the knobs out after purchase, or did it come like that across the pond?

Good catch. I swapped them out. The hockey pucks had a cheapening effect and the black pops so well.