Wm goes Thermionic

Sloppie isnt in the mafia.

What does the box do sloppie?

What would these "flaws" be? Come on give us a few pointers - if you arent just teasing me. I think you kow it isnt flawed - always room for improvement however.

You dont need a room sweep for a psu. I can send you a room diagram and description though.

 

Correct your improving

Amplifies signals

It is flawed, not totally though, you know the reasons

Thats a start, however a room sweep is esential if you are to realise your systems full potential, now you haven't stated any spec's for the psu yet, numbers of rails?, voltages, current, umbilical design?. Call me old fashioned, I feel these would be of assisatnce to me Wm

 

Have a good day gents, I'm off to wilds of wiltshire for a testing session later T.

 

Never said you were in the mafia sloppie.

Oh is that the preamp? Thought it was something else.

Flawed as it doesnt have one of your psus? Or something else? I agree with you that there is scope for room work but not much point in a rented flat. Given my current situation and what is likely to be happening over the next 12 months I dont want to buy right now - before I even consider the bloated london market.

Umbilical design - I am waiting the details on the connectors before forwarding to you.

+/- 13v dual mono. an amp probably - will check it out. Phono has three opamps per channel (6 total) and volco has one each per channel balanced (total 4) plus some transistors.

Come and do a sweep for me please.

 

room

Speakers at one end of the room - big rug covering most of the floor. Big futon sofa half way down. Single futon chair just ahead of it. Booksheleves down one side record cases down the other side. Small table in front of single futon. Rear wall broken up by kitchen and hallway.

 

Heard nothing but good things about the EE minimax. Will have to try one out some day.

DT

 

see here:

http://www.6moons.com/audioreviews/eelectric/preamps.html

and here:

http://www.6moons.com/audioreviews/eelectric3/stack.html

and here:

http://www.enjoythemusic.com/magazine/equipment/0503/easternelectric.htm

also you might find this interesting....

http://www.morningstaraudio.com/shop/item.asp?itemid=6

 

Tone,

for the 12AU7 try to get some NOS mullards, the mil spec ones are CV4003 (12AU7 equiv). They certainly bring more along for the GG.
When i pop up next i could pull them out of the GG for a try.

Also the shunt mod on the volume pot is worth a go, sounds sweet with Vishay's.

 

Kitchen/dining/lounge all in one room with hi-fi???!!

Of course it's not flawed. Now I remember another reason why I left London.

 

Its quite big bub. There is no dining room except in the pic. Just one big lounge. Kitchen and hallway extend and breakup the reflections from the back area. Should I post a pic?

Penance - how much difference did you find vishays make? i am looking at fitting some to my kit.

 

I guess it depends where you stick them.
I found a lower noise floor, i think mainly due to metal film attributes over the carbon type they replaced. Obviously with a lower noise floor along comes an improvement all over.
Tightened up the bass nicely aswell.

 

Looks cramped to me, but a different perspective, p'raps.

 

Well my volco has a 24 way balanced stepped attenuator - total of 96 resistors and 4 inline at any time. I am using welwyn. It would cost about £400 to redo with vishay. Expensive but perhaps worth it?

Redoing the rest of the diy kit with BG and vishay will cost £600 or so to put that into perspective. Have you tried black gate? What about alternatives to BG and vishay?

 

nah its big for a flat bub if you look at the measurements. for london anyway. want a pic to check it?

 

I much prefered Vishay over Welwyn. I have a 24 step attenuator with welwyn and to my ears going back to a pot with vishay shunt was far better, ymmv.

I had BG on B+ smoothing, but one of them gave up the ghost and i havent managed to replace it. So back to standard cheapies at the. Waiting on some panasonic FD's to try at the mo.
To be honest the difference of BG over cheapie was not huge. Again, i imagine it depends where they are used.
As for alternatives, where do you want to start? There are so many to try.

 

I think you might find the pre-amp is the box with the volume knob and input selector on it .

 

hmm good point - power amp then?

penance - start wherever you think best. curious about your findings.

 

Well, for caps direct in the signal path, IE dc blocking on output, i am using Mundorf silver in oil. Only been insitue for a week, but i am happy with them already. I want to try the CVH Teflon caps, heard very good reports, but they are pricey.
Others i have tried are dynamicaps, mundorf supreme, audionote copper foil and some russion millitary paper in oil, but the silver in oil beat them all hands down.
TBH, i've not played much with 'lytics yet, its still on the cards tho.

As for resistors, ive tried many but the vishays always came out tops.

I think with all of it tho, it really depends where in circuit the components are. That is down to trial and error to work out.
Its a right royal pain sometimes, sticking them in, they sound crap, wait 2 weeks to see if they get better, rip 'em out cause they still sound crap.

 

YEs good point. Its all a lot of effort. Will try vishay and BG and leave it at that most likely. Other areas of exploration to do with psus are likely to be more productive given vishay and bg are prob some of the ebst even if not the best. Thanks! What diy items do you have in your system?

 

Currently,
Grounded Grid pre
Valve phono stage

In process is a DIY TT based on a scheu 80mm platter and bearing.