Diezel VH4 Pedal [Gut shots]

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Re: Diezel VH4 Pedal [Gut shots]

Postby zamguitar » 22 Dec 2016, 19:39

VH4 PEDAL.png
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Re: Diezel VH4 Pedal [Gut shots]

Postby rcustoms » 22 Dec 2016, 20:37

zamguitar wrote:
VH4 PEDAL.png

is 100% ok or there something so so in the final schematics
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Re: Diezel VH4 Pedal [Gut shots]

Postby Manfred » 22 Dec 2016, 21:09

D3,D4 looks like D1,D2,D5,D6 to me.
Did you measure the Diodes?
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Re: Diezel VH4 Pedal [Gut shots]

Postby zamguitar » 22 Dec 2016, 21:18

rcustoms wrote:
zamguitar wrote:
VH4 PEDAL.png

is 100% ok or there something so so in the final schematics



Didn't build yet. But I'm pretty sure that the schem will give close results.

Just need to figure out the D3 and D4 zener values.
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Re: Diezel VH4 Pedal [Gut shots]

Postby zamguitar » 22 Dec 2016, 21:21

Manfred wrote:D3,D4 looks like D1,D2,D5,D6 to me.
Did you measure the Diodes?



Just drew from the pictures, D3 and D4 are indeed 500mW zener diodes with the 1n5XX code.
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Re: Diezel VH4 Pedal [Gut shots]

Postby rcustoms » 22 Dec 2016, 22:46

awesome work zamguitar,i design the pcb layout ,in this days
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Re: Diezel VH4 Pedal [Gut shots]

Postby Manfred » 23 Dec 2016, 00:05

zamguitar wrote:
Manfred wrote:D3,D4 looks like D1,D2,D5,D6 to me.
Did you measure the Diodes?



Just drew from the pictures, D3 and D4 are indeed 500mW zener diodes with the 1n5XX code.


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Re: Diezel VH4 Pedal [Gut shots]

Postby Manfred » 23 Dec 2016, 00:16

Who can check the clipping voltages of both polarities with an oscilloscope?
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Re: Diezel VH4 Pedal [Gut shots]

Postby Manfred » 23 Dec 2016, 00:29

Why does the edit function sometimes not work?

I meant the pointed out position.

CheckPoint.png
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Re: Diezel VH4 Pedal [Gut shots]

Postby mozwell » 23 Dec 2016, 02:15

A simple way to check what the zener is without removing it.
POWER OFF the unit
Get a 9V battery, connect battery negative to the anode of the zener, connect the cathode of the zener to the 9V battery positive THROUGH A 1k RESISTOR.
Using a multimeter, measure the voltage across the zener

I would guess these are 3.3V zeners, or maybe even as low as 2.4V
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Re: Diezel VH4 Pedal [Gut shots]

Postby Manfred » 23 Dec 2016, 02:52

Manfred wrote:Why does the edit function sometimes not work?

I meant the pointed out position.

CheckPoint.png


You are right, that is the easiest way to measure the zener voltages. :thumbsup
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Re: Diezel VH4 Pedal [Gut shots]

Postby Manfred » 23 Dec 2016, 12:47

A simple way to check what the zener is without removing it.
POWER OFF the unit
Get a 9V battery, connect battery negative to the anode of the zener, connect the cathode of the zener to the 9V battery positive THROUGH A 1k RESISTOR.
Using a multimeter, measure the voltage across the zener

I would guess these are 3.3V zeners, or maybe even as low as 2.4V


Here again, I quote my self in the last post . :slap:

You are right, that is the easiest way to measure the zener voltages. :thumbsup
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Re: Diezel VH4 Pedal [Gut shots]

Postby sebjus » 04 Jan 2017, 10:48

Hi. anyone build a VH4 klone, based on a this schematic?
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