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Thanks for the heads up James, that's really helpful.

Yeah, its valve output from a Buffalo III board. Ill post a photo of the dac when I get a chance.

I'm no expert but I'm guessing it must be electrical Barry - if I switch the Dac off the buzz disappears. My Quad power amps are extremely quiet with minimal white noise. I'm pretty sure the buzz I...

thanks Grant

Hi

I recently acquired a home brew Dac from a Hi-fi enthusiast in Italy. It sounds great but the PSU (housed in separate box) has a slight hum / buzz which is amplified through the speakers.
...

Thank for the response Lee. I'm in Weybridge, down the A3.

I got my amps up and running now using my dim bulb tester. They seem to be ok.

Where are you based out of interest?

Thanks for the offer, that's very kind of you. Yes, maybe it's a bit too far, probably cost £30 there and back via courier.

So now I got my DBT and a variety of different wattage bulbs does anyone have any tips with regard to procedure?

I've been reading up on the web (and asking a few friends) for advice.

I want to...

Thanks for the link Malcolm

Thanks all. I got myself one of these:

https://s2.gifyu.com/images/s-l160052bd703979ff613f.jpg

Ok I just read somewhere that the resistance of the light bulb limits the voltage that will reach the equipment. By increasing the bulb (wattage?), you can increase the power to the equipment.

But does this method mean the transformer gets the full whack of mains at once though?

I've replaced all the resistors and capacitors save for 2 original electrolytes associated with the rectifier tube and the transformer which I want to keep. The tubes have been tested as strong.

Something like this dim bulb tester?

https://antiqueradio.org/dimbulb.htm

Hi Alan

Keep hearing about this but never done it before, is there an explanation / guide somewhere on how to do this?

Cheers

Hi all

Wasn't sure where to put this request, but thought DIY might be the best option.

Does anyone living in the Surrey area have a variac transformer they could kindly lend me for an hour?
...

SOLD

pending payment.

Hi

Two XTC 'The Surround Sound Series' CD's for sale / Steve Wilson remastered.

1. Drums and Wires - CD + DVD-A - APESP103

2. Black Sea - CD + BLURAY - APEBD103

Two of the best XTC albums...

Hi all

I'm on the look out for some Quad II valve amplifiers.

Original capacitors preferred and an unmolested transformer if possible. Not bothered about original resistors or looks.

PM me...

Hi all

7 David Bowie CD's for sale in excellent condition. Details listed below:

1. Aladdin Sane. 1990. EMI. CDP 79 4768 2. UK: CDEMC 3579. 0077779476824. (teeth within case doesn't grip CD)
...

Provisionally sold, awaiting payment.

Cambridge Audio 640P MM Phono Amp (ARKLESS)

Arkless Stage 1 modified Cambridge phono amp for MM with original power adapter

I've also added a few top notch Vishay resisters along the signal...

SOLD.

FS: PHK Nano Meco, Vinyl Record Cleaning Machine + Accessories

Effective vinyl record cleaner, just add hoover. The nice fact about this model is you have a brush arm, as well as the suction arm,...

Bump

Thanks Lawrence.

I think what's nice about my Quads is you're not only getting fully restored (and safe) amps but, more importantly, running at original specification. You don't see that much...