Emma - Reezafratzitz [ goop-alarm ]  [traced]

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spiffy chap
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Post by spiffy chap »

miwanone wrote:I can post eagle files on request, I've got some sound samples here! It's clean, clone, original.

http://www.gitaar.net/forum/index.php/f ... eeza_1.mp3
http://www.gitaar.net/forum/index.php/f ... eeza_2.mp3
http://www.gitaar.net/forum/index.php/f ... eeza_3.mp3

No volume problems at all, works like a charm. Here's my build, next to an original:

Image

*edit* just so you know, all of the samples were recorded using a fender strat, into a hotrod deluxe. 8)



Can you post these? Great!

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voland83
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Post by voland83 »

Another reeza done, sound is nice. I still dont know what is the diffirence beetween 4069 and 75hct04, i suppose that second ic provides harder clipping as 74hc04 is hi speed cmos inverter. I use analog key and flip flop as a bypass rather than dpdt switch, as opposed to DPDT analog key has resistance about 100 Ohm which in my opinion is meaningless. excuse my english. :)
Attachments
reeza.jpg
my reeza inside
my reeza inside

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miwanone
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Post by miwanone »

Nice build!

I attached my eagle files, for anyone interested. Not the best pcb I've done, but it works.
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reeza.zip
(849.88 KiB) Downloaded 1057 times

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botti1988
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Post by botti1988 »

thank you for your work!
anyone has tried to insert an output buffer and make the pedal true bypass?

results?

thanks and sorry for my english :mrgreen:

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voland83
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Post by voland83 »

actualy a real true bypass depend on a non buffered signal, which means you have a direct connection beetwen guitar and amp, when you insert buffer it becomes a no true bypassed effect. besides this effect has buffered bypass and in my opinion it is better because this kind of solution eliminates a bad influence of capacity of shielded cable ( if its too long ), and sound is more crystal than moody.

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Xide88
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Post by Xide88 »

Need help!!! i have built one, it works, but in some ways:

- when tone control is set to more or equal than 55-60 percents
- when bias control is set to 40-45 percents

It is produce buzzing hum, something like sound of bees, and problem is not in adapter :(

When it buzzes, i changed controls of drive and volume, but hum is becoming more silent :x

What the reason of this? :scratch:

I use this layout to built pedal, i am not newbie in making pedals :D
Attachments
reezapnp.gif
reezapnp.gif (5.47 KiB) Viewed 4259 times
reezalayout.jpg

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mictester
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Post by mictester »

Xide88 wrote:Need help!!! i have built one, it works, but in some ways:

- when tone control is set to more or equal than 55-60 percents
- when bias control is set to 40-45 percents

It is produce buzzing hum, something like sound of bees, and problem is not in adapter :(

When it buzzes, i changed controls of drive and volume, but hum is becoming more silent :x

What the reason of this? :scratch:

I use this layout to built pedal, i am not newbie in making pedals :D
That's a pretty layout, but it's very poor electronically. :cry: It's too crammed. You've got several high gain stages, and there will be interaction between them because the components are so close. :idea: Take all the parts off the board, throw the board away, and design a new, bigger one, with more spaces between the stages. The original Emma board is MUCH bigger - and now you can see why.
"Why is it humming?" "Because it doesn't know the words!"

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Xide88
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Post by Xide88 »

mictester wrote:
Xide88 wrote:Need help!!! i have built one, it works, but in some ways:

- when tone control is set to more or equal than 55-60 percents
- when bias control is set to 40-45 percents

It is produce buzzing hum, something like sound of bees, and problem is not in adapter :(

When it buzzes, i changed controls of drive and volume, but hum is becoming more silent :x

What the reason of this? :scratch:

I use this layout to built pedal, i am not newbie in making pedals :D
That's a pretty layout, but it's very poor electronically. :cry: It's too crammed. You've got several high gain stages, and there will be interaction between them because the components are so close. :idea: Take all the parts off the board, throw the board away, and design a new, bigger one, with more spaces between the stages. The original Emma board is MUCH bigger - and now you can see why.
Oooooohhhhhhhhh :( i am depressed((((

Thanks a lot for the answer!!!! :D I will make another one!))

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distortion_gfx1
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Post by distortion_gfx1 »

Xide88 wrote:Need help!!! i have built one, it works, but in some ways:

- when tone control is set to more or equal than 55-60 percents
- when bias control is set to 40-45 percents

It is produce buzzing hum, something like sound of bees, and problem is not in adapter :(

When it buzzes, i changed controls of drive and volume, but hum is becoming more silent :x

What the reason of this? :scratch:

I use this layout to built pedal, i am not newbie in making pedals :D

I used the same layout.. it works just fine!
I only got Humming sound when i set the drive pot max.. (well i guess it is normal coz its a dirt pedal) and the thing that bothers me is the Bias knob.. it hums when i set it to zero! (dont know why.. :scratch: )

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extremist
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Post by extremist »

Hello! I've got a question regarding the schematic: are LEVEL and BIAS pots connected correctly there? Looks like they are flipped by 180 degrees (comapred to guts shots on the first page). Am i right or it's just doesn't matter for B pots?

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chi_boy
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Post by chi_boy »

mictester wrote: That's a pretty layout, but it's very poor electronically. :cry: It's too crammed. You've got several high gain stages, and there will be interaction between them because the components are so close. :idea: Take all the parts off the board, throw the board away, and design a new, bigger one, with more spaces between the stages. The original Emma board is MUCH bigger - and now you can see why.
Sorry for bringing back such an old thread.

I'm trying to learn Eagle and thought I would try the Reeza just for kicks. I saw this post and I'm concerned my board may be too cramped, as was suggested about the other layout. Anyone care to offer any comments?

For the record, this is based on miwanone's schematic work.

This isn't verified yet either.

Thanks,
G

Image

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thn.technik
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my favorite amplifier: Laney
Completed builds: Shred master, Tube screamer, Reezafratzitz, SansAmp GT2, RAT, Okko Diablo, Metal Simplex...
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Post by thn.technik »

some tone mod for Reeza, bass and mid control
Attachments
Reeza_ToneMod.jpg

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distortion_gfx1
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Post by distortion_gfx1 »

chi_boy wrote:
mictester wrote: That's a pretty layout, but it's very poor electronically. :cry: It's too crammed. You've got several high gain stages, and there will be interaction between them because the components are so close. :idea: Take all the parts off the board, throw the board away, and design a new, bigger one, with more spaces between the stages. The original Emma board is MUCH bigger - and now you can see why.
Sorry for bringing back such an old thread.

I'm trying to learn Eagle and thought I would try the Reeza just for kicks. I saw this post and I'm concerned my board may be too cramped, as was suggested about the other layout. Anyone care to offer any comments?

For the record, this is based on miwanone's schematic work.

This isn't verified yet either.

Thanks,
G

Image

Great! this would fit a regular BB size Taiwanese enclosure..

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thn.technik
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my favorite amplifier: Laney
Completed builds: Shred master, Tube screamer, Reezafratzitz, SansAmp GT2, RAT, Okko Diablo, Metal Simplex...
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Post by thn.technik »

small improve for tone modification, BASS and MID control,

in middle positions original tone characteristic, enjoy :D
Attachments
emmareezafratzitzToneMod.jpg
emmareezafratzitzToneMod.jpg (24 KiB) Viewed 3400 times

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Barcode
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Post by Barcode »

chi_boy wrote:
mictester wrote: That's a pretty layout, but it's very poor electronically. :cry: It's too crammed. You've got several high gain stages, and there will be interaction between them because the components are so close. :idea: Take all the parts off the board, throw the board away, and design a new, bigger one, with more spaces between the stages. The original Emma board is MUCH bigger - and now you can see why.
Sorry for bringing back such an old thread.

I'm trying to learn Eagle and thought I would try the Reeza just for kicks. I saw this post and I'm concerned my board may be too cramped, as was suggested about the other layout. Anyone care to offer any comments?

For the record, this is based on miwanone's schematic work.

This isn't verified yet either.

Thanks,
G

Image
I would just build your layout and see if you notice any noise issues. Mictester is a bit deranged when it comes to layout. There are very few cases where layout makes significant impact in the realm of 9V stompboxes (though it does happen, for example in super high gain circuits like the dr. boogie). Build it first, if it works and there isn't any excessive noise, you are golden.

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thn.technik
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my favorite amplifier: Laney
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Post by thn.technik »

This is my final version of Reeza, with tone modification, middle and bass control added, it's working perfect :D
Attachments
REEZA_THN_dB_Hz.jpg
REEZA_THN_PCB.pdf
PDF export for printout
(23.74 KiB) Downloaded 375 times
REEZA_THN_SCH.jpg
REEZA_THN_PCB.jpg
REEZA_THN_PCB.jpg (60.96 KiB) Viewed 3316 times
REEZA_THN.jpg
REEZA_THN.jpg (91.07 KiB) Viewed 3316 times

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thn.technik
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Post by thn.technik »

sorry for "post by post" but: Where is "EDIT" button ??? I can't find it :D

here was small not correct route (to close):
Attachments
This was to close, sorry
This was to close, sorry
REEZA_THN_PCB_old.jpg (61.58 KiB) Viewed 3278 times
better one
better one
REEZA_THN_PCB.jpg (60.3 KiB) Viewed 3278 times
REEZA_THN_PCB.pdf
(23.45 KiB) Downloaded 350 times

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thn.technik
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my favorite amplifier: Laney
Completed builds: Shred master, Tube screamer, Reezafratzitz, SansAmp GT2, RAT, Okko Diablo, Metal Simplex...
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Post by thn.technik »

My Reeza ;-)
Attachments
THN_Reeza4.jpg
Rezza_conect2.JPG
THN_Reeza3.jpg
THN_Reeza2.jpg
THN_Reeza1.jpg

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ballfire
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Post by ballfire »

hello

is there an existing schematic of Emma - Reezafratzitz II ?

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Grendahl
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Post by Grendahl »

ballfire wrote:hello

is there an existing schematic of Emma - Reezafratzitz II ?

Go back a page?
https://www.freestompboxes.org/viewtopic ... 20#p131323
Resistance is futile...
( if < 1 ohm )

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