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Messages - flester

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1
Tubes and Hybrids / Re: Reduce signal from preamp.
« on: January 23, 2021, 05:09:29 AM »
By the way it's all running at 12v dc and I have left out the tone pot.

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2
Tubes and Hybrids / Re: Reduce signal from preamp.
« on: January 23, 2021, 05:07:14 AM »
Noise was worse when I wiggled the gain pot so I replaced that which seemed to solve the problem. The whole thing did work fine at first and the preamp and power amp each worked fine on their own so interested to know if the noise was due to the power amp getting too much signal or not.

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3
Tubes and Hybrids / Re: Reduce signal from preamp.
« on: January 23, 2021, 04:55:13 AM »
https://1drv.ms/u/s!Ahfhrrb-UXCanS2OqSaG-XLKGiCx

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4
Tubes and Hybrids / Re: Reduce signal from preamp.
« on: January 22, 2021, 02:04:11 PM »
Heres the noise which comes in as I increase the volume.  https://drive.google.com/file/d/1KL_uZ8kQ9_aCp2k0lP7rCePaSFM_Zxf0/view?usp=drivesdk

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5
Preamps and Effects / Re: Old newb questions
« on: January 21, 2021, 04:20:53 PM »
Did you make any progress on this? If you are like me, such projects happen over months rather than days. I have had good results with pedals straight into a power amp module. The Kemo amp modules are durable and stand up to soldering better than very cheap ones. 

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6
Amplifier Discussion / Re: Simple 3W amp IC? (for 4ohm speaker)
« on: January 21, 2021, 08:41:39 AM »
One reason I use LM386 is that they provide an acceptable kind of distortion on their own. Will you be able to achieve that, or will it be a clean amp?

7
Tubes and Hybrids / Re: Reduce signal from preamp.
« on: January 20, 2021, 01:41:45 PM »
Thanks, I was trying that and it was not working but I found a few other issues on my circuit. I'll fix those and try arain

8
Tubes and Hybrids / Re: Reduce signal from preamp.
« on: January 20, 2021, 04:09:59 AM »

9
Tubes and Hybrids / Re: Reduce signal from preamp.
« on: January 20, 2021, 04:04:27 AM »
I'm running it at 12 v. The preamp and the power amp work fine when tested seperately.

10
Tubes and Hybrids / Re: Reduce signal from preamp.
« on: January 20, 2021, 04:02:46 AM »
Sorry, here you go. It was late when I posted

11
Tubes and Hybrids / Reduce signal from preamp.
« on: January 19, 2021, 06:47:34 PM »
I have built amp with a starved plate 12au7 preamp feeding a solid-state power amp module. There's a 100k audio pot controlling the signal going to the power amp. Whats the best way to pad the input to the power amp? A resistor in series somewhere?

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12
The Newcomer's Forum / Re: Soldering Iron Tips
« on: January 19, 2021, 05:22:06 AM »
I think I have one of those toilet valve thingies.


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13
The Newcomer's Forum / Re: Soldering Iron Tips
« on: January 19, 2021, 05:21:07 AM »
I really need to get a better iron/station. Any recommendations around €100/$120 or so?
The cheapo is useful but it seems shame to bin it after a day. You get what you pay for, right? I think I've found a source for suitable tips now but I'll also try the workarounds mentioned below.

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14
Great, thanks

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15
Could you add Ireland for shipping please. I'd vote for no speaker.

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