Replies to This Discussion

Permalink Reply by Fergus Lester on November 11, 2019 at 8:06am

Sorry, posted in wrong section. Can I move it myself, or can someone move it for me?

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Permalink Reply by BrianQ. on November 11, 2019 at 9:17am

No need to move, all good, it’s already here? Here’s Shane’s article about the gitty 2.5 watter, complete with sound demos, I have heard this amp, with the Psycho knob distortion & it’s pretty kool sounding? hope this helps? https://www.guitarworld.com/blogs/build-this-simple-diy-guitar-amp-kit

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Permalink Reply by Fergus Lester on November 11, 2019 at 9:00pm

Yes that sounds like what I'm after but am curious to know how it sounds without the psycho knob. In my Marine Band amp I have a TDA2003 amp board which sounds OK clean but not distorted so am considering changing the electronics.

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Permalink Reply by Paul Craig on November 11, 2019 at 9:06pm

A lot of these amps come with a block type gain pot on the board to set the gain level. You can remove them and wire in a regular gain pot for accessible control. I think some of the amps come with instructions on how to do that mod if they haven't made them all 2 knob amps(volume and gain) by now.

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Permalink Reply by Fergus Lester on November 23, 2019 at 8:31am

Psycho knob on the way! The cost of this simple little amp is gradually creeping up but then I'm learning a lot in the process. Money spent on education is seldom wasted !

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Permalink Reply by Fergus Lester on November 29, 2019 at 6:43am

I've ordered a Psycho Knob. If my TDA2003 power amp already uses up to 0.5A, would I need a 2nd 9v battery to power both?

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Permalink Reply by Fergus Lester on December 4, 2019 at 2:31am

Looks like the psycho along with the amp can drain the battery pretty fast. Admittedly using rechargeable 9v battery which doesn't have much capacity. Might use external 9v power supply instead

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Permalink Reply by Paul Craig on December 9, 2019 at 4:19am

You can use 2 9volt batteries in parallel(both hot wires together and both ground wires together) for longer play time or get a walwart with high miliamp output. Unfortunately, the walwarts may cause problems with unwanted noise.

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Permalink Reply by robert jones on February 17, 2020 at 12:59pm

I use the battery pack from an RC car to power mine. Rechargeable, 9.6v, molex connector for easy charging/switch out, and I get about 5 hours of play time at full volume between charges.

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Permalink Reply by Fergus Lester on December 7, 2019 at 10:51am

Good results I think. Sound clips with each of the psycho settings from 0 to 4.
Listen to Psycho knob 1.m4a by Fergus Lester on #SoundCloud
https://soundcloud.com/fergus-lester-103857150/psycho-knob-1-m4a

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Permalink Reply by Fergus Lester on February 17, 2020 at 8:58am

Any idea of the max power supply voltage of the Psycho Knob?
Thinking if building one into a DIY power amp which needs at least 12v

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Permalink Reply by Paul Craig on February 22, 2020 at 8:41am

Ask Ben(Gitty), He'll know.

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