IC Buffer

Project description

Based on this schematic by Jack Orman and the layout by Carsten Bocker.

Verification status

There seems to be an error in the layout, although I remember building one that worked?!? Anyway: give me a few days to sort it out and I'll get back on this!

Mods

Use 2.2M for R1 and R2 for higher input impedance (General Guitar Gadgets).

Bill of materials

Resistors
R1: 1M
R2: 1M

Capacitors
C1: 100nF

Electrolytes
C2: 10μF

DIL IC's
IC1: TL071

2 jumper wires

5 trace cuts

List

Click here to see the bill-of-materials as a list or download it as a comma separated values file (.csv).

Code

BB Forum code

[url=https://diy-layout.com/21][img]https://diy-layout.com/diyl/21/render[/img]
IC Buffer[/url]

HTML code

<a href="https://diy-layout.com/21"><img src="https://diy-layout.com/diyl/21/render" alt="IC Buffer" title="IC Buffer" /><br />
IC Buffer</a>

Comments

IC Buffer layout

Submitted on August 10th, 2011 by Anonymous

Hi there,

There are 2 errors on the above layout :

- a cut trace is missing under the IC, between PIN 4 & PIN5 respectively VCC - & OFFSET N2
- the ground must be wired between R1 & IC PIN4 on the other side of row #5

Will this fix it? A cut trace

Submitted on June 1st, 2012 by Anonymous

Will this fix it?

A cut trace is missing under the IC, between PIN 4 & PIN5 respectively VCC - & OFFSET N2
To fix: Cut position (5 along, 5 down)

The ground must be wired between R1 & IC PIN4 on the other side of row #5
To fix: Connect (3 along, 5 down) to (8 along, 5 down) with a wire.

Thanx!

Submitted on August 10th, 2011 by admin

Thank you for reporting, I've edited the description and I'll have a look at it as soon as I have some time...

Cheers!

Hi there is this circuit

Submitted on April 26th, 2013 by Anonymous

Hi there is this circuit correct? I built it as is but it didn't work, although I can't see how the suggested changes would make any difference as the cut would break the ground connection between pin 4 and 5 and the suggested wire jumper would just add it straight back?

Anyone built a working one of these?

I haven't tried to build this

Submitted on May 8th, 2013 by Anonymous

I haven't tried to build this buffer yet but it seems like pin 5 does not need to go to the ground. So the jumper from R1 & pin 4 is not needed. All you have to do is put the ground wire in between R1 & pin 4 and make sure that pin 4 & 5 are not connected by drilling out one of the traces. Let me know what you think.

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