audio-talk

Greg wrote:Yes, I understand. It's like using masonry nails. Many taps but not too hard. Also very useful. It stops calling for the nurse every five minutes

^^^^^^^^^^^ Good one Greg!

DTB

Yes I was going to say the heater should be CT (or same effect wiv 2 equal res's); earthing one side only meant 'tother side is still boinging up and down at 6.3VAC and it's going up into the ECC83. Also twist all the heater wires together Ta Mike, well achally all the heater cabling is twisted tog...

It's Christmas, I like traditional Christmas's so not being one to break with tradition I thought I'd do another build over the Christmas holidays... 2006 was WD88VA. 2007 was the MLTL's and this year it's a pair of Saburo's. This has come about because a) I like building things b) Any foole knows 4...

^^^ Thanks for the tips on the hum reduction Gents, top support as always. it's a pity I didn't bring the little portable scope home this Christmas so I could go Hum hunting, I'm only guessing its the 6B4G AC heater supply thats making it, trying to measure the AC on the HT makes the meter jump abou...

...mine could do with some hum reduction...

DTB

Mike H wrote:I thought so anyway! Hitherto was using like World Audio Design type ones, trouble with them is always got the four corner screws the sight of which were getting on my nerves

You tart!

DTB

^^^Shoddy as ever

<runs away>

DTB

Thanks for all the input Gents (watch out for that inter-electrode capacitance though...arf!) and ideas. Well, I managed to get it home last night on the back of the bike. Powered it up and lo and behold there's me missing top end :shock: I was feeding it from my Valve phono stage via a shunted 50K ...

^^^^There you go Mike, see.....listen to what Anthony said :D He's done it on an uber-tight budget too. Seriously though Mike, pop round if you like, you're more than welcome. Phil's done it and he escaped unscathed (I think!).... although he did take a while to get used to the chilled-out blissful ...

Thanks Mike, I've just checked the 'pot-in-a-box' Volume control we have here in the 'shop. It's 220K.....

I've got a 20K shunted ALP's at home, I'll try and get the amp home tonight on the 'bike and try it at Chez Bass.

EDIT. It's a 50K shunted Alps not a 20K, sorry.

DTB

Yup, I ride everyday up to work and back, I've seen some rubbish driving by all vehicles... bikers included.

DTB

... this Miller-capacitance effect, can I do anything about it by fitting either grid leak and/or grid stopper resistors to the grid of the ECC83?

I found this site... http://www.freewebs.com/valvewizard/gridstopper.html

Has anyone else had this problem with LW?

DTB

andrew Ivimey wrote:I suppose we could always move on.. to something not necessarily more esoteric!

suggestions!?!

"Miller capacitance for Comprehensive-school-Educated-dumbo's" ?

DTB

This small blue green planet far out on the unfashionable end of the western spiral arm of the galaxy, which is so amazingly primitive that the inhabitants still think that digital watches are a pretty neat idea, is not necessarily the best place to live. Boring provincials! Phil's gonna understand...

I dunno, I go away for a few hours and my threads all full-up :D Sorry for delay, been doing 'proper' work and just spent the whole dinnertime getting it tidied up a bit... http://i195.photobucket.com/albums/z109/davethebass1/Picture57.jpg http://i195.photobucket.com/albums/z109/davethebass1/Picture...