Quad Help!

Ok, turning up the volume on the 33 increases the loudness of the hum in the monitors...

Is light on in 33?

Have you got the 303 'mains cable' plugged into the back of the 33? When you switch on the 33 does it 'turn on' the 303? It does sound like the 33 is getting power, if the volume control affects the hum into the 303.

Just going back to my earlier comment - have you tried connecting your sources to each of the inputs in turn? The 'Tape' input and 'Disc' inputs have different routes through the 33 to the 'Radio' inputs. The Tape board may have blown but this wouldn't affect the 'Radio' inputs.

And another silly question, are the plug in boards in the 33? Long time since I used mine.

Right..
1. No lights on the 33
2. I just have the tt plugged in at the moment - no change
3. lights come on the 405 - which has it's own mains lead
4. Yes, the 4 pin-4pin is connected.
5. Playing with the mono and stereo switches affects the noise in the speakers
6. Yes, the cards are in the back - correctly as far as I know.

Next step is to unplug the tt and try with the cdp

I've just had a thought re-reading your comments from the start and thinking about the mains cable into the 33.

I got my mains cable of eBay:

http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=190284616712

It is a 3 Pin Round Bulgin plug to 3 core cable (I was thinking about the 2 core cable between the 33 and the 303 in my earlier post). The picture in the eBay ad made me think.

I assume your mains input into the 33 ends with the round 3 pin?

Just thinking you might be plugging the mains into the 2 pin outputs from the 33.

Perhaps some pictures would help!

Aaaargh! :doh:

Pictures coming soon.

Things get weirder.

I have the cdp plugged in and playing - and a very very tiny amount of sound is coming out of the speakers. With the volume turned up to nearly full I'm beginning to think that the problem might be
a) the speakers
b) the tt

But, for now I have a tiny sound - sounds like what you can hear when somebody has their in ear headphones on very loudly!

I wonder if you've succeeded in connecting both parts of your bi-wired speakers together properly. You may just be getting noise from your tweeters. Do you get any hum at all from the mid/woofer cones?

I have never known a bulb blow in a 33, but it must happen. Perhaps take the cover off the 33 and check that the bulb is screwed into its holder fully. (think its a screw in). At least with the light going you will know that you have power to the 33.

It's so long since I used my 33, I could not remember if there are plug in boards inside, looks like there are:

http://www.net-audio.co.uk/jpgs/quad33opin.jpg

Are these in? not just the tape and phono boards.