Höfner - Wah Wah  [schematic]

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...
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borislavgajic
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Post by borislavgajic »

here it is ......enjoy....first photo is from Discofreq-s effectdatabase........

side switch just move frquency range to very deep wahing.....
I can say that I like Colorsound wahs more than this one :thumbsup

cheers

Boris
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hofner_wah_005.jpg
hofner_wah_005.jpg (25.42 KiB) Viewed 3281 times
Hofner wah 001small.JPG
Hofner wah board.JPG
traceside 001.jpg
traceside pcb.JPG

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celadine
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Post by celadine »

Were the capacitors all replaced? They look modern. Especially the yellow box hanging off the input jack.

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borislavgajic
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Post by borislavgajic »

celadine wrote:Were the capacitors all replaced? They look modern. Especially the yellow box hanging off the input jack.

that one is replaced...yellow.....and side switch looks different .......but else is original
:thumbsup

boris

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Mich P
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Post by Mich P »

I have one too since lot of years now.
The schematic is how it's coming.
You can see the modifications i have done.
The buffer is a foxrox wha retrofit, the pcb
is from DimebuGG.
Mich P.

Image

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borislavgajic
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Post by borislavgajic »

Thanks for schem...! nice build....... :thumbsup

Boris

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solder_blob
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Post by solder_blob »

Wow! i really like your wiring job

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Post by warsavius »

Hallo, I've just found for very few € three very old wah pedals here in Italy. One of them is the Hofner No.1 Guitar Effect Pedal (the wah of this topic) of 1967. More info in this page http://www.vintagehofner.co.uk/factfile ... edals.html

In the next week I'll proceed to draw the schematic and bring the thing to life. Maybe this could be interesting for those who like old wah gears, if there's any. :D
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IMG_20201203_185228_copy_1843x1382.jpg
IMG_20201203_185219_copy_1843x1382.jpg

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warsavius
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Post by warsavius »

Here's the schematic. The components are 100% original.
Attachments
IMG_20201217_210253_copy_1152x864.jpg
IMG_20201217_210233_copy_1152x864.jpg
IMG_20201217_210212_copy_1152x1536.jpg
IMG_20201217_210226_copy_1152x864.jpg
IMG_20201217_210305_copy_1152x864.jpg
Schematic_Hofner wah_2020-12-17_21-10-41.png

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Rebuilder
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Post by Rebuilder »

Hi guys,
A friend of mine gave me a house of one of this pedals, without the internal circuit...
Do you thing it worts to make a new circuit for this pedal?

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warsavius
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Post by warsavius »

Rebuilder wrote: 08 Mar 2022, 19:43 Hi guys,
A friend of mine gave me a house of one of this pedals, without the internal circuit...
Do you thing it worts to make a new circuit for this pedal?
It's not a hard circuit to rebuild, the most expensive part is probably the pot. But you can also build volume pedal... Sure the case is really cool, looks vintagey and different from cry babies...

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Post by Rebuilder »

warsavius wrote: 08 Mar 2022, 20:22 It's not a hard circuit to rebuild, the most expensive part is probably the pot. But you can also build volume pedal... Sure the case is really cool, looks vintagey and different from cry babies...
I have the original Pot and both original jacks.

Image

Image

Image

Thats all i have, i need to build the circuit and the back plate. Also i would like to disassemble the top pedal, from the case, to give a proper paint job and replace the rubbers, but i don't know how to take off the main shaft...

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Post by Rebuilder »

@warsavius in the first picture that you post, looks like you removed the pedal from the bottom enclosure, can you please share a picture of the rod, i need to know if to remove, its with preassure or unbursing, and if it is a one piece rod.

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Post by Rebuilder »

@Warsavius you have the Gerber's file of that diagram?

Can you share it with me please?

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warsavius
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Post by warsavius »

Rebuilder wrote: 17 Mar 2022, 00:04 @Warsavius you have the Gerber's file of that diagram?

Can you share it with me please?
No sorry i've never did a gerber file :(

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Post by Rebuilder »

And a picture of the pedal rod or the two moving parts disassembled do you have?

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Post by warsavius »

Hofner wah disassembled
Hofner wah disassembled

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Post by Rebuilder »

warsavius wrote: 19 Mar 2022, 08:55 1647680039733_copy_1044x2320.jpg
Thank you....that rod has some threads or it's just a pressing rod?

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Post by Rebuilder »

@Warsavius thanks for the tips on pressing the Rod...i made it...

Image

Now it needs a good srip and paint....

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sonicvi
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Post by sonicvi »

I just got one of these recently except it’s Halifax instead of Höfner. Other than the name it looks nearly identical to the one Boris posted above. The serial number is 13. I was tracing the circuit and it’s almost the same as the classic Vox circuit, but there’s a 1M resistor connected between the collector of Q2 and the positive side of the 5uF electrolytic cap, one of the 470K resistors is connected between the collector and base of Q2, and the other 470K resistors is absent. I absolutely love the sound of this wah, even more than my Italian Vox Cry Baby. The only thing I don’t like about it is the bypass switch being under the heel rather than the toe.

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Post by Rebuilder »

sonicvi wrote: 09 May 2022, 16:18 I just got one of these recently except it’s Halifax instead of Höfner. Other than the name it looks nearly identical to the one Boris posted above. The serial number is 13. I was tracing the circuit and it’s almost the same as the classic Vox circuit, but there’s a 1M resistor connected between the collector of Q2 and the positive side of the 5uF electrolytic cap, one of the 470K resistors is connected between the collector and base of Q2, and the other 470K resistors is absent. I absolutely love the sound of this wah, even more than my Italian Vox Cry Baby. The only thing I don’t like about it is the bypass switch being under the heel rather than the toe.
Do you have the file to print a PCB ?
i Restored my enclosure, but now i need a pcb circuit to print...i just don't have knoladge to do it myself...:S

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