audio-talk

Thanks Nick. The MX has a very good rep for handling on the road from what I read (As does the Boxster of course). Would love a Boxster but I think it would become wearing as a daily driver, the MX would be better in that respect. Maybe about the wearing side. Depends on age. Later one with pasm wo...

How does steering feel compare between them? The Mx is a bit faster to turn in, but the standard soft springs let it down as once its started turning it leans a lot (and I guess the extra weight up front adds to that). The Porsche is a lot more composed. They both let you know whats going on well e...

A layer of hash has been removed as it was last time. I have to ask. Did the layer of hash come back when you put the electrolytics back in last time? Yes, it was just a slight bit of fuzz around the treble. It's not a night and day difference with the motor runs in place but it's there nonetheless...

Well, the Boxster is faster overall, but the mx5 is higher geared, and the throttle response via the ME ECU is a lot more instant. I can see that the Boxster has some filtering in the system somewhere. The Boxster seems to encourage a more "smooth" driving style, while the mx5 seems to pre...

A layer of hash has been removed as it was last time.

I have to ask. Did the layer of hash come back when you put the electrolytics back in last time?

All good. Was at Croft. Well not all good still loads to work on. Almost got the Mx5 to where I wanted it. (Much cheaper to turn into what I want than the Boxster would be). Being driven around by someone who knows what he is doing puts a stake in the ground what the car will do. I doubt getting clo...

Lots of progress today. I missed it till now as I was away driving in circles again all day.

Well I am not fighting for that valve . But a flat load line does wonders.

I was thinking 200v 25ma but I agree more would be better.

Why have you drawn a 6k load line for the interstage?
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Ok, so maybe el84 would be a better choice. Just wanted an excuse to mention E130L, I think its a great valve that no one seems to use.

I haven't run the numbers, but I wonder if the el34 in pentode driving the interstage might give you extra gain and a simpler drive for the 6072a, so you might be able to miss the 5687. Also, el84 might do most of the work of a el34 as its only driving the gm70 grid instead of a loudspeaker. Also an...

I would hazard to suggest the el34 would be better than a DHT, far less microphonic as a driver valve. Why not just do what Phil does, make your existing amp the driver, replace the output TX with the interstage, then just add the gm70 output stage. At least as a prototype.

I think they can, though, I would think you might want to run that o/p stage b+ via a variac partly for the valve, and partly for room temperature. 125W in winter, maybe a bit less in summer (+ 60W heater power as well). In the amps I built Colin way back, that Andrew has now, I used a similar circu...

Oh, and I was quoting Mr Sowter "Junior". I used the past tense as he has now retired and Sowter Transformers sold.