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Barry, don't you have any mono records?Quote:
Originally Posted by Barry
I use my TMD25 all the time for older mono recordings. Wouldn't be without a true mono cartridge with the correct dia tip as the SQ is far superior. :)
http://i46.photobucket.com/albums/f1...5/IMG_0907.jpg
Yes I do, but I'm happy to play them with a stereo cartridge and switch the preamp to 'mono'.Quote:
Originally Posted by BTH K10A
I disagree that the SQ is far superior by using a mono cartridge. Would agree that using a cartridge with a slightly larger radius tip of 25um is sometimes better than using one with a more modern 15um tip radius.
That mid might also be Audax too, wonder if the whole system was made by Audax. Probably pretty good.
SQ is definitely better. Swapping between my TMD25 and both TSD15 & TSD15sfl using mono switch on my preamp there is a noticable difference in image clarity and much more depth and body to the sound.Quote:
Originally Posted by Barry
This is most likely down to the impossibility of the stylus producing an identical signal into both stereo channels as it tracks the groove giving a constantly changing signal that can not true to the original recording. It might be small fluctuations but it can certainly be heard.
Also the mono cartridge has no response to vertical movement so there's no pinch effect and noise related to any wear etc is significantly reduced.
Switching the preamp to mono, or connecting the left and right outputs of a stereo cartridge together, means any voltage produced by vertical modulation is cancelled.Quote:
Originally Posted by BTH K10A
Of course there's a 'pinch effect'. The replay stylus doesn't have the same chislel-shaped profile as the original cutter head, so the stylus is not be able to trace the high frequency grooves, resulting in a sinusoidal grove being traced as triangular, thus producing a distorted output. Using a larger radius spherical tip doesn't help, but in having a larger radius it will ride higher in the grove and not read the groove wall wear that a smaller radius tip would.
A stereo cartridge may have a slight channel imbalance that could cause some issues when summed, either at the cartridge by strapping the output pins, or using a mono switch. I'm not sure how important that may be, but there's an engineer fellow on Lenco Heaven who's posted a bunch of over-my-head stuff on it. His solution is a phono pre that sums the channels, but also balances them first. He posted a schematic.
I guess it's individually subjective whether it's worth the faff.
How does the mono switch or connecting the left and right outputs differenciate between vertical and horizontal and cancel vertical modulation only? Are you not just summing the signals which will also sum any extraneous vetical signals?Quote:
Originally Posted by Barry
I always wonder how people can manage to get things in such a state.
Looks like it may have been raining prior to getting them out of a skip :scratch:Quote:
Originally Posted by struth
Old AR's are prone to looking rough as rats unless very well looked after... I would guess someone overwatered a pot plant that was sitting atop one of those... Providing the drivers are alright [will need refoaming regardless] they'll make a fun project & beautiful sounding pair of speakers once finished.
Any Good :scratch:
Can't them out? Any Ideas.
http://www.gumtree.com/p/speakers/la...ers/1083394792
Mid unit looks like Peerless KO40MRFQuote:
Originally Posted by dantheman91
Bass looks like Seas - identical to the on in the Heybrook HB3's
http://www.ebay.co.uk/itm/Dual-CS-10...item3a9842466d
Wish I knew someone in Milton Keynes......like these duals...
They don't look home made, but I don't recognise them...Quote:
Originally Posted by spendorman
A fair price, can't see anything obviously wrong with them either http://www.ebay.co.uk/itm/AR-4XA-flo...item3a98cba6b0
Scratch that, they've changed it from "BIN" to an auction...
Always worth making an offer on items your interested in... It's a pleasant surprise when the seller accepts.
Just got a pair of Rega EL8 & Senta for £30 :eyebrows:
Bit of a bargain IMO http://www.ebay.co.uk/itm/Arcam-DV88...item3f3e3abb58
Solid Arcam build quality, fantastic picture on CRT TV's & pretty good at playing CD's too.
Never seen one before! n1
Stonkingly good mm cart. Can't imagine it'll go for that kind of moneyQuote:
Originally Posted by istari_knight
A big Nagaoka for sale....think this is the top one? Probably going to cost a bit more in the final minute though.
http://www.ebay.co.uk/itm/3909454260...%3AMEBIDX%3AIT
Yes it is the top of the line of the old range and will take an MP500 replacement stylus when the old one wears out. If you can get it at under £200 it is a steal.Quote:
Originally Posted by struth
Best be quick http://www.ebay.co.uk/itm/Technics-S...item2a459f9aa4
Indeed!
:rolleyes:
:zzz:Quote:
Originally Posted by The Barbarian
Every opportunity :lol:
:DQuote:
Originally Posted by The Barbarian
http://www.ebay.co.uk/itm/331343926604
''I have for sale I think 11 or 12 bass drivers''
But I only see 9 drivers :rolleyes:
S.
They're not from B&O 5702/5700 speakers either, as he suggests. Those speakers used a cast chassis ten inch derivative of the Celestion Ditton 66 driver that looked different.
Made by Philips I think... European for sure.
The pressed steel basket certainly looks like Phillips.Quote:
Originally Posted by istari_knight
Reminds me of the old Crown/Amcron amps http://www.ebay.co.uk/itm/Turner-B30...item5d50d86d16
Reminds me more of SAE and BGW!
Sansui AU-888 anybody?
http://www.ebay.co.uk/itm/VINTAGE-SA...item3396d39b51
Lovely!
Good amp that, and looks to be very clean. Not a bad price either.Quote:
Originally Posted by walpurgis
Nice amp...Quote:
Originally Posted by istari_knight
http://www.ebay.co.uk/itm/Copper-Tur...item20edcbac81
Lovely Copper mat here
http://www.ebay.co.uk/itm/Vintage-Ph...item3a98f70ef7
Not seen one of these b4. Anyone know if they're any good?
These are good and rare... Pity about the condition. http://www.ebay.co.uk/itm/Technics-m...item4d25c5ef77
My brother in law had one of these in the 70's early 80's. He worked for PYE and was able to get Philips stuff at a good price. I seem to remember that the whole of the arm and platter floated together (i.e some kind of suspension system?). I am afraid I can't really recall how it sounded as I only heard it once or twice and it would depend on what it was used with as to whether it sounded any good or not. However he did have some Lowther speakers with 2 drive units, one angled at 45% facing rearward.Quote:
Originally Posted by struth
Reasonably decent sound quality but ridiculously bouncy suspension. Not worth £50 IMHO.Quote:
Originally Posted by struth
PHT is an acronym for "Phono Transducer" and is an evolution of SR’s award winning UEF technology. Type 'I' PHT adds a holographic ethereal dream like quality to your records while Type 'S' is all about focus and clarity with musicality.Quote:
Originally Posted by Gordon Steadman
What a load o pish!
Cheers, phlips not reknowned for their tt'sQuote:
Originally Posted by Beobloke
Not quite ebay but I was just in Oxfam in Wokingham this lunchtime and saw a pair of Tannoy Bradleys for £425, in very nice nick complete with all (intact) grilles, badges and matching solid wood speaker stands.
They run 3128 12in dual concentric drivers, so should sound pretty decent. Will need a few watts up them but a Quad 405 or upwards should be ample.
Nice speaker that shouldn't need any fettling like a really old vintage one would. Pricey in their day (mid 80s IIRC).
Just like these ones:
http://www.illel.fr/temp/an_photos/31840.jpg