Stacking in the laminated core.
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Stacking in the laminated core.
Played at the Vector Arena here in Auckland NZ last night. 9000 people in attendance.
Of course he and the band (Crazy Horse) are all my generation and he's done his New Zealand homework.
In those days, when you went to the movies, before the show they always played the national anthem and we were expected to stand up.
The monochrome TV wasn't on all day then, and meanwhile during the day they'd transmit a test pattern with cicles in the corners etc, so you could adjust the magnets on the neck of the tube to get the linearity right (if you were lucky!).
So they opened the show with the New Zealand National Anthem (nobody stood up!) Other than the huge mosh pit crowd already standing of course.
High above the stage out near the corners of the auditorium each side were a pair of huge speaker arrays disguised as enormous portable 1950s TVs, cream and grey with handle on top. Should have had the rabbit ears.. CRT shape with B&W test pattern as above!
Show projected on those, so you could see them as on an old CRT TV! In colour though of course.
None of that would have been lost on at least us older bods, but a vast number there would never even have been born then. Brilliant. The band certainly powered out of those old "boxes"!
A privalege to be at another one of his shows here.
Sounds like a great gig, glad you had a great time! :)
Shows like that are like being at an outdoor concert. People dancing behind the mixing shed.
We were first seats up just hehind that looking over the top of it, and the vast throng on the flat. Basket ball etc is often played here.
Perfect spot because of course that's where it's mixed from!
Of course Niel and the band, as consistantly brilliant as ever, played heaps of well known and also more obscure works.
The crowd certaily tested the joint pounding. My seat was jumping!
Especially when we all were trying to get him to reappear.
Excellent stuff Jack, I've got a ticket to see them when they get here to the UK later in the year. I haven't seen Neil Young since 2005 and never with the Horse so I'm more excited about this than I have been about any upcoming gig for years.
Great stuff! I'm looking forward to your assesment!
Supplies of remaining odds and ends finally clicking into place. Expect product soon.
hi all,
murray busy building up preamp
power supplies - more news soon,
cheers,
adam
Have one going about tomorrow, when a photo will appear, with or without covers on the filter chokes. Some have been ordered from abroad.
As the bloke said in "The Grapes Of Wrath": "Won't affect the runnin' of it"!
Here are shots of the new valve power supplies with the Phono Equaliser II and Ten Tube Preamp:
When the pics manage to be attached!
Another go at getting the photos up!
No show.
Maybe the moderators know how.
They are 950 x 713 pixels...
Is it Jpeg as that image size should upload into attachments..
The problem was that the browser box did not appear yesterday, but is working today. A photo of the tube power supply and Phono Equaliser II went up OK on previous page.
I'll find the one with Ten Tube Preamplifier and get it up on this post..
Yep, working today!
Right. Here is the perfect solution to an endemic problem:
Email is dead.
No longer do I delete pages of spam and endure even worse interference.
I am now contactable as follows: You can bookmark later, but first Google: "Flickr Jack Williams".
Then you will get my photostream.
Just bring up any photo, and in the right-hand top corner will be icon and a number. That tells me how many messages I have, and I click there to read and reply.
Spam free!Attachment 9947
Consulted an expert. This is what one does:
1: "Tools"
2:"Options"
3:"Advanced"
4:"Clear now" button
5:Close Firefox (or other browser)
6:Open again.
Fixed!
The tubular linear recording is back!
Conversing with a friend on another site. Pertinate stuff:
http://www.skirtcafe.org/forums/view...127816#p127816
Attachment 10178Somewhat is happening here.
Laminated rimu wood boards are being glued together. This is a very dense and hard timber native to New Zealand.
These pieces were old bed ends, and thus have goodly space upon them. I will thus have some one and a half inches of thickness.
Perfect therefore for steam turntable and belts to govenor and for engine with boiler.
All need to be in line, as belts from govenor to platter, and from engine should be diametrically opposite to minimise pressure on bottom bearing of govenor, which by my off-the-cuff calcs will be doing some 900/1000 revs for 33RPM and 45RPM. We'll see what thrashing up to 78RPM will do!
I have the bits for govenor.
Meanwhile I have got myself this embroided skirt from the steampunk department of the Historical Emporium:
Methinks the Rega arm with Ortophon cartridge would be a good combination from the collection.
Photo: Steampunk skirt with added pocket.
Getting the governor together is the big thing. Reckon that will be together this week. A bit like clockwork construction. Making brasswork.
Pockets in Steampunk skirt now complete.
Right. Got the beautiful little engine ordered today. Many to choose from, but this one very nice USA made one. Still to get boiler from UK. Spirit fired. Clean record, fuel turntable: same bottle.
http://www.miniaturesteammodels.com/prod154.htm
Ain't that nice?
Boiler next:
http://www.modelsteamenginesuk.com/a...ed_Boiler.html
From New zealand.
Got the engine kit yesterday.
Quite a wee hobby project in itself!
Went with Cade to a bloke's place not too far away to hear a pair of Altec Lansings on a single ended amp using new version 2A3s. Very nice.
I used to have these as a kid..
http://www.mamod.co.uk/
Yes we were treated to an excellent afternoon of listening and maybe a bit of imbibing too. The Altecs of which Jack speaks are actually GPA 804G Mk III units and the amplifier we spent most time with was the remarkable Sun Audio 2a3 unit running EML mesh plates.. an incredibly linear combination that was hard to say goodbye to. Good fun. Thanks Gortnipper...!Quote:
Originally Posted by Jack Williams
Attachment 10547Attachment 10546Yes, a nice wee session there. Will I hope have more time there another day. I'll take a selection of records next time that the blokes won't have heard.
Here's a shot of the new tube power supply with Ecofan Sound Phono Equaliser II. A much more three dimensional sound from your vinyl collection.
Got the engine kit recently.
I liked the "engine green" colour of it in their illustration of the comleted engine, but of course you paint your one yourself..
I am thinking maybe the Dulux "Indian Red" colour I have on the amp transformers would look good, and it would match the amp!
I notice this new illustration shows it in a red rather similar! http://www.ebay.com/itm/Live-Steam-M...-/130436266758
Also I notice different parts have been painted in those illustratins.
The rule of thumb is: paint the cast but never machined parts.
hi all,
just to let you know, ian in the deep south of
new zealand is very happy with his new
valve rectified power supply for his ecofan
'ten-tube' preamp.
he's running an ecofan 6A3 stereo amp into
hawthorne silver iris open baffle loudspeakers.
an excellent match it seems.
hopefully a picture or two to follow,
cheers,
adam
Here's a shot of a MK 1 amp and preamp owned by friends Rachel and Neville, in for checkup.
I like to see a decent layer of dust on them. Shows how reliable they be!
Also with American amp which does need re-tranny-ing.
Lots of winding happening right now.
On the way to the bus in Karangahape Road, Auckland, NZ, I had a natter to this DJ bloke at the entrance to a club.
Genious to have him out in the entrance, and better air for him too.
He said, no he didn't believe in the digital special "DJ" premixed disks a lot use. He'll mix up his own records thank you very much.Attachment 10806
In the above post I was returning after a terrific afternoon at the annual Diwali Festival Of Light, put on by our local Indian community.
Besides many photos, I did make a few videos with my pocket Canon camera.
The tops could be better, but they tend to dissapate outside.
http://www.youtube.com/watch?v=6Cwd6Wb69ms
http://www.youtube.com/watch?v=iZxmMrIZspM
http://www.youtube.com/watch?v=jmUi_9L7a4Y
A great loss to all music lovers.
http://www.youtube.com/watch?v=LrMLt9bMd_I
hi all,
i'm lucky enough to have been lent an audioquest usb/dac
to try.
gave my dad a run with his $200 earbuds and this
year's imac - his response: "more of this" - indicates increased
top to bottom image scale - "and more of this" - spreads arms
to show increased soundstage horizontally.
he's not enough of a headphone listener to buy one -
but he appreciated the gee-whiz high-tech miniature
nature of the thing.
i haven't had a good play with it yet but it didn't really add
much to sound of my overear sennheiser hd 485's and i don't
think it'll drive my ultrasone hifi-680's... could be the trick
for anyone with high class in-ear phones though,
cheers,
adam
p.s. thanks to marco for letting ecofan keep this thread
gently humming along
hi all,
further experiments with phones and dragonfly:
interesting result:
2011 desktop imac - i wouldn't
enjoy listening to either the native output or the
dragonfly here - (as someone said - my ears are
ruined by triodes...)
2012 macbook pro: much cleaner and more
relaxed with native output than imac - much
more bass extension with dragonfly.
neither machine computer with or without
dragonfly really pleasing though the macbook
has the edge. i wasn't expecting such a large
sonic difference with the dragonfly in the 2
computers.
all sources collapsed into nastiness with any
kind of heavy weight bass or e-guitar production
- might just be my midprice sennheisers but
i have heard rather listenable results with other
sources.
don't think i'd be spending up on the dragonfly,
though don't take my word for it, give one a go,
cheers,
adam
Surprising how good this little speaker sounds.
Captured by me:
http://www.youtube.com/watch?v=bnwJWOLWBls
http://www.youtube.com/watch?v=6Cwd6Wb69ms
Attachment 11124This hitherto shockingly wired amp will soon be unrecognisable with new power & output transformers and a completely different circuit.
Only new capacitors and LV rectifier needed.Attachment 11125
That's running a 15" electromag speaker in an open back cabinet.
Pickup inside the speaker enclosure of course.
I think it's all about resonance actually.
The speaker and cabinet resonate at a suitably low note, so you get a really good dance beat out of not a huge amp.
The turntable is actually vertical, and, sorry, really heavy stylus pressure, sprung to resonate at some other frequency.
The preamp is very interesting. It is an oscillator, which is modulated by the coil in the pickup!
Then FM detector.
I feel a new preamp coming on..
What if you could tune in to your turntable on your FM tuner??
Ahem, that's rather complicated, as you meed a crystal on a proper fequency etc. In other words: "Don't try this at home"!
You have to do some research into local regulations and all that.
It's kind of like a remote, but on FM band. Tiny range.
I'm going to experiment with it. It's a tiny transmitter on a designated frequency. At least here. Swotting up local regs would probably be good.
What about a wee box which has the phono preamp valves on top, but beneath is a readily available FM tranmiiter chip with telescopic antenna. Switch from "Phono" to "Line". Wallah!
Remote turntable etc to your transister on the deck.
Here we are in a nutshell!
http://www.digikey.com/us/en/ph/rohm/bh14.html
Totally impractical. The thing to have would be a mini transmitter connected to the "Tape recording out" socket.
It was the 78RPM machine that had the "Cobra" arm with the oscillator. A vane was moved by the stylus to vary the inductance of the coil, which modulated the oscillator preamp. I have one of those pickups here for test purposes, as that is the only way to check if it is operating.
On those 'boxes, the records are each on a tray stacked to the right in the cabinet, and the selected one swings out over the turntable, which spirals up, collecting the record and carrying it up to the top where the arm is. Only plays one side of record.
Here is another jukebox amp in for an overhaul.
This a Row-Ami amp in really mint condition, of the early'60s. Those red, and black wax and paper caps you see are the main thing to replace, but also it's a good idea to do all the plate load resistors, as they are doing a lot of work and are invariably carbon composition types, where the resistance value is got by varying the proportion of carbon granules with the amount of chalk granules. (!).
Nothing like a film type, carbon or whatever to lower the noise heaps.
Stereo amp with separate preamp not shown.
That has conventional magnetic pickup and valve automatic volume control to cope with varying levels on the records.
It's a bit "hard case" really, as the record producers would impress bigger and bigger levels on their records so theirs would sound louder than the other guys. All to be levelled out by the designers of the jukebox.
Dunno why I didn't think of it before, but here in front of me is an 8" speaker connected to sophisticated short-wave radio nobody listens to anymore.
So what I do is take out the old radio type speaker and install a one only 15 ohm Richard Allan CG8T I happen to have.
Above the bench in the workshop I keep a ten watt wee monoblock with sentitive front end and traditional ulta-linear EL84'S.
My YouTube videos rock!
Carefull though, one can overblast the decibels from only a few feet away.
A refinement:
Well this is just a rapid rig-up on a Sunday afternoon.
The speaker is 15 ohm, but the amp happens to be set to 8 ohm.
The amp is overpowered in "ultra-linear" and would be better in triode mode. Easy to set amp to triode and 15 ohm.
Speaker is open baffle.
Can redo cabinet to Helm-Holtz I think.
As is, not in the slightest scientific, but I have to say it certanily rocks on those YouTube videos!
A bit of a blast on this video I made myself I have to say:
http://www.youtube.com/watch?v=6Cwd6Wb69ms
http://www.youtube.com/watch?v=bnwJWOLWBls
Attachment 11180The mini monoblock.
Actually quite a serious wee OPT on that, with 1.75" of Radiometal.
The copper wrapped power transformer prevents transmitting hum into those cables!
This looks better for a quicker broadband:
Attachment 11181