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Messages - ipoo2

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1
The Newcomer's Forum / Re: Reposting my encyclopedalia
« on: June 12, 2013, 09:12:01 AM »
lil' bump - anyone have this??

2
Amplifier Discussion / Re: Noisy cricket enclosure
« on: June 07, 2013, 06:30:59 AM »
Really appreciate this nutrition advice  :cheesy:

I suppose a wallpapering of the insides with aluminum foil is the ideal solution for my design.

3
Amplifier Discussion / Re: Noisy cricket enclosure
« on: June 06, 2013, 02:17:35 PM »
I suppose first I would need to eat the contents - best choose wisely  :)

The design I have in mind would hide the edges so the sheers may work.

Hmmm, should probably check the sweet aisle first though...

4
Amplifier Discussion / Noisy cricket enclosure
« on: June 06, 2013, 10:16:12 AM »
So, I am thinking about making an enclosure with bits I have lying about. U have wood for the frame and will cover with some faux leather material.
For the control panel and base for veroboard, as well as mounting inputs. I was thinkin of using some old DVD player enclosures I have.

What would be a good "around the house" tool to cut them up?? As I need them squared off.

 Not sure of material, but it is rather thin metal.

5
Amplifier Discussion / Re: "Easy" veroboard project check
« on: May 20, 2013, 03:34:54 AM »
Oh.... It is all a learning curve I suppose! We check out the ruby and smokey projects, cheers  :)

6
Amplifier Discussion / "Easy" veroboard project check
« on: May 19, 2013, 05:57:46 PM »
I am trying to create my first guitar amp on a hopefully simple circuit!

Here is the schematic

http://www.redcircuits.com/Page96.htm

Although, with a dummies guide, I am trying to learn about reading schematics, components etc.. I did cheat and found this veroboard layout

http://2.bp.blogspot.com/-Oo0fOO7BWTY/T6icNKtTqeI/AAAAAAAACVw/QoVP4avH-As/s1600/MiniGuitarAmpVero-01.jpg

From this blog
http://diystrat.blogspot.co.uk/2012/05/how-to-make-kids-portable-guitar.html

My question, is the veroboard layout correct??

I have done it exactly the same triple checked and referenced and all I get is a slight crackle when I turn the volume on my guitar!?!



7
The Newcomer's Forum / Re: Circle Sound Amp - No Sound
« on: April 12, 2012, 08:05:15 AM »
Thanks for the advice, much appreciated  :) And yep it does look pretty cool!

I am a little nervous using the lamp limiter - what with mains electricity being involved  :-\ Any alternatives?


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The Newcomer's Forum / Re: Circle Sound Amp - No Sound
« on: April 04, 2012, 05:26:13 AM »
First: i suggest you to do and USE this thing LImiter bulb light

Damn, I just pulled a table lamp apart for wire that would have been perfect for this test!

9
The Newcomer's Forum / Re: Circle Sound Amp - No Sound
« on: April 03, 2012, 05:01:18 PM »

The issue with the amp is that it turns on and you can here the hum.Do you hear hum whether or not anything is plugged into its input jack? Does the hum increase/decrease in volume when you adjust the volume control?

Hum remains whether the guitar is plugged in or not at a constant level despite volume increase/decrease

10
The Newcomer's Forum / Re: Circle Sound Amp - No Sound
« on: April 03, 2012, 04:58:33 PM »
You have tried this guitar through a known good amp, right?

Yep!

Pics as promised


By ipoo2 at 2012-04-03

By ipoo2 at 2012-04-03

By ipoo2 at 2012-04-03

By ipoo2 at 2012-04-03

By ipoo2 at 2012-04-03

By ipoo2 at 2012-04-03

By ipoo2 at 2012-04-03

11
The Newcomer's Forum / Circle Sound Amp - No Sound
« on: April 03, 2012, 05:23:29 AM »
First post so hello  :)

I brought a Circle Sound Amp head of ebay sold as spares and repairs. apparentyl from the 1960's  ::) Hoping I could fix it up simply enough! I have zero knowledge of the amplifier, so if any one does that would be great!

The issue with the amp is that it turns on and you can here the hum. Plugging the guitar and strumming a chord = nothing. Even with everything to the max.
Although slapping the pickup does produce a noise. Similar to what I would expect...

I have checked guitar cable, speaker cables etc so the problem I believe is with the head. I opened her up and there was a few badly soldered wires that may not have given a good connection. It was also a little dusty so I blasted that with compressed air. I made sure that all grounding points looked and felt good. Closed her up and turned her on and nothing had changed.

What would my next steps be?
Cheers

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