audio-talk

Even a dimshit like me can get good use out of one. :wink: :lol: Now that made me smile Philip! :lol: I have two scopes - one doesn't work and the other isn't very sensitive. And might not work very well either :(. But after a bit of playing I did get some results with both stages connected up. The...

Okay, not so sure now :?. I've just checked again, this time without the inputs shorted, so plugged in to the stepups and amps on the output. Now there's 1mV on the C3g anode and out side of the 56nF, but 44mV on the top of the lower anode of V2, and 42mV on the output. So what's going on cos I'm st...

I've rejigged things tonight to get the boards closer to the intended layout and reduce the wiring. Hum has reduced a little, but only a little. There's 5mV on the C3g anode and 28mV on the Aikido side of the 56nF coupling cap. There's similar ripple on the out side of the last coupling cap so I'm r...

I like the optimistically titled photo - "Dint". You planning on selling it on ebay?

Very pleased to see you get out of that one largely okay.

I still miss my 1985 520i. It was 8 years old when I got it and 18 when it went to car heaven. Apart from fuel it cost me next to nothing, and I could still put a spanner on it myself if I needed to. I still haven't got used to front wheel drive really, though it would have been awful this winter. A...

Well, if we are allowed a 5687, first stage 15k, 330R on cathode with a bypass, directly coupled to second half of 5687 standing on a 9k1 bypassed cathode resistor, loaded with a 50H then a cap to the 2a3 works nicely. I rather like the sound of that - must make a note somewhere (that I'll find aga...

I'm an Engineer.

Yes, I'm anal.

Screening might be a good start . But I've got miles of wire carrying very delicate signal at the moment. Surely things can only get better with a proper install. I hope that's enough...

This chap does all sorts - I've used him before and got a few of various types for stock. Works out much cheaper than buying here. But depends how many you need.
zhangseng ebay

Bummer. Glad you're okay Nick.

Very interested to see what you think of the different Buffalos - they're supposed to be pretty good but accounts on the net by someone you've never met means little. If they are as good as recogned then they might be worth it.

Now you've had a play with the Bufalo how do you rate it Nick?

Just to clarify, the inputs were earthed originally, but not when I had the C3g on its own as they were earthed from the Aikido board. Having finished my decorating and plumbing duties I had a few more minutes to play and I think there's some progress. :) Rationalising the earthing things are much i...

Can't remember if I ever tried a grid stopper on g2. Probably not. I'll bear this in mind when I've run through the earthing. Thanks for all the help so far.

The Aikido is an All in One, so the HT and heater reg are on the board. I disconnected the HT from the board but for simpicity I left the Aikido heaters wired up but took the valves out. So the heater reg was on but no valves to heat. Other than that only the C3g was connected. Hmmm, it occurs to me...

Blimey Mike, gizza chance! The clue was in my original post - it's only taken me 18 months to start to get this in a box. What chance of fixing the hum over a busy weekend? Nick and Andrew have eloquently explained why we've used a C3g in a phono. You really must come to a fest sometime to hear some...