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Found 29 results

  1. Further information: Quad or really 2 pairs of RFT EL34's which have been tested on a hickok 750 tester, they pass gas and shorts and all test above new spec and all within 5%. One pair has the RFT boxes and slightly bigger base, The other pair has no boxes and has a sligtly thinner base. happy to split the pairs if I have a buyer for both. Structurally they are essentially the same. They all are the single halo getter type. RFT stands for Rundfunk- und Fernmelde-Technik - a group of state-owned technology companies in the former German Democratic Republic (East Germany). This company produced valves for Telefunken and Siemens and made the famous Siemens EL34. These valves are of very good quality and have excellent consistency. They have been making valves for Siemens etc since the 60's and are considered by some to be some of the best EL34's made (that you can still buy relatively easily) . These are still available from some retail tube sellers at around RRP $650+ or even more on scumbay for a good set. postage included within Aus Photos: PLEASE READ If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved
  2. Tube amplifier homemade? With this post, I would like to advise all of you who believe that output transformers must be purchased that there is an alternative. Purchasing or reusing 'lacqer-insulated' copper wire can be used to make your own output transformer with the help of a computer program created by Yves Monmagnon. Here are two videos where I first make a chatode biased amplifier, then rebuild it into a fixed biased amplifier. In the last video, each tube is checked to be adjusted, and then the entire amplifier is benchmarked with the help of an ocilloscope and RMS voltmeter. Here is the two videos of the amp build and testing: some pics from the 'hifi central': https://www.hifisentralen.no/forumet/threads/2x15w-el34-pp-med-ul-opt-selvbygget.88291/ here is a free google drive link to the program I used to calculate the OPT's: https://drive.google.com/file/d/1dzfxdD_2FrEn5WLOeuQDUsqWwd_aUbpS/view?usp=sharing Take care, and thanks!
  3. To get a grasp of where I’m am going with this thread you need to of read or have read this article. https://www.stereophile.com/content/gramophone-dreams-34-salt-cellar-system If you go no further at the least it is in interesting read. Some will go “meh” others will take it on board to search for better reproduction. Maybe even build there own SC. The challenge I have given myself and would like to throwout to others is can you build or hobble together a “Salt Cellar“ (SC) system. The core of a SC system is purity of sound, dynamics and immediacy. These are the constrains/opportunities I’m am pursuing; a monaural system high efficiency speakers - horns where possible a tube low power Class A mono power amp or even tube integrated amp vintage tubes mono vinyl phono playback from mono cart or mono wired phono stage ultra short non shielded interconnects and speaker leads of Silver plated wire wrap wire ? Ive been tossing this temp system around since I read that article and now have (in my head) a whole SC system. So cutting to the chase I’m going to build a mono integrated wine box tube amp based on some vintage 807 and RCA 6SN7. Half the 6SN7 will be a single stage preamp and the other half the driver for a Suncalc designed 807 amp. Speakers will be my Beyma 12” concentrics with a Altec 511B horn and FatalPro driver. The horns will handle mid-range and the tweeter in the horns super tweeters. Overall efficiency about 98db. Im current working three other projects but now taken on a forth for a true SC system. Any other takers out there.
  4. Right now there seems to be a wealth of opportunities in the realm of tube audio here on SNA. Lots of top quality gear at excellent prices. Or am I biased, having just gone further down the tube path?
  5. Further information: Smart looking in vivid red and even better sounding SRPP tube preamp. Built on a Hammond Wood cheek chassis with external PS. A 24V wall wart (provided) powers the PS which joins to the preamp via a heavy cord. Tubes are Gold Lion Gold pin E88CC. This original design was re-tweaked by the designer to work even better with this specific tube. Two selectable inputs from small front Switch one set of output RCAs. Drives into heavy loads with ease and powers my Holton amps well. 4oz solid brass gold plated knob on Alps blue velvet pot. WBT silver solder throughout and Russian Military PIO caps on the output. Silver plated wire wrap wire use for internal hookup. Final HT cap is Russian (subbed) 4uf PIO. Both HT and heater voltage is DC and triple Pi filtered. Tubes have Dragon Ring dampeners. PS is choked with a Hammond 5H choke and 400uf of 400V filter caps. A very natural sounding super clean preamp with a fast and nibble touch. Dead quiet operation. Through my system passes bass down to 30hz which is as low as my system will go. From bass to treble there is an absolute flat response with no hint of uneven response. Fine detail is presented with ease making listening very enjoyable. http://retro-thermionic.blogspot.com/2020/06/rosso-e88cc-srpp-preamp.html Donation will be made. ELECTRICAL DISCLAIMER This product has not been manufactured by a qualified individual or company, therefore contains electrical circuits that do not necessarily comply with Australian Standards. I understand that as the seller, I may be liable to repercussions in the event of equipment failure. By advertising and selling this product, as the seller I also agree that I am solely liable, and the publisher of this website takes no responsibility for any injury or death resulting from, whether directly or indirectly, any accident that may happen as a result of the failure of the product being sold. If in doubt, seek the services of a qualified electrician to inspect the product to ensure it is safe for use. Photos:
  6. Further information: These are spare for my preamp but never been used. I can give 30 days money back warranty. Thanks for looking. Photos:
  7. Further information: This is essentially a preamp with a gain of 1.0. I feed my DAC into it, then output to my amplifier. It adds a tube distortion to your signal, which can make it better. Eric Chan made it for me by request. Looks funky, as all Eric gear does. It features two RCA inputs, one RCA output, and a switch to change between the 6as7 tubes and 5998 tubes. I also have several tubes that go with it, including a WE421a that is now worth a lot on it's own, and these i include at no extra cost. if you are looking for low cost high quality entry into tube world, this is it. Photos: PLEASE READ If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved
  8. Further information: : bought from Lucas Miles audio. 2 matched quads. Never used. Was going to try in a power amp but never did. Price is for one matched quad. I have 2 quads for sale. Postage is extra Photos:
  9. Item: 2 x 12AU7 & 2 x EL84 Price Range: Neg Item Condition: New or Used Extra Info: Need 2 x 12AU7 & 2 x EL84 Looking to change the Tubes in my Cayin amp from stock tubes. Based in Sydney, willing to cover postage. Please don't forget to report your post as FOUND when possible. (You can now delete this text).
  10. Further information: Hi there, I'm selling a pair of Genalex Gold Lion ECC82 (12AU7) tubes that I bought for a DIY project that never transpired. Both work perfectly having tested them briefly in another amp. Photos: Advertisements without photos of the actual item will not be approved.
  11. Further information: Hi there, I bought a NOS pair of RCA 6AS7G tubes for a planned DIY project that never transpired, and so they're sitting around collecting dust. I've tested them briefly in another amp and they work perfectly. Photos: Advertisements without photos of the actual item will not be approved.
  12. Further information: PRICE DROP!!! I'm surprised this hasn't had as much interest as I thought it would given its relative rarity and glowing reviews. I would really like it to go to someone who will use it (I've even sold my headphones!). I suspect I've priced it too high for the market so taking a hundred off. For sale is my gorgeous headphone amplifier hand crafted in Japan. It just doesn't get the use it deserves. It is in wonderful condition, and has heaps of glowing praise bestowed upon it by the doyens of the internet. Look it up! https://userweb.117.ne.jp/y-s/HA-02-new-e.html Happy to demo or answer any questions. Its probably easiest to sell it locally with pickup but could quite easily be well packed for shipping. Happy listening. Photos:
  13. Hi there, First, I am a newbie here. I wish to have advice on the pre-amp. My current setting is MacBook Pro --> AQ DragonTail --> Curious Cable --> Chord Hugo 2 --> Sennheiser HD 600. I use Audirvana to listen hard drive music and Tidal. Hugo 2 is nearly the best of portable DACs, and HD 600 is already nice enough for me (of course you can upgrade to Audeze LCD-2 or 3). Here's my question: I listen a lot movie soundtrack and 60s/70s classics (the Beatles, Elton John, Leonard Cohen, you name it). I listened some tube amps giving warm sound for me. I am thinking to get a headphone amp which is tube based. Any recommendation? I am thinking my budget is approx. $1.5K. I don't mind a second hand, but I do mind those made in China or Chinese brands. Thanks a lot for your help.
  14. Further information: The original Genalex Gold Lion ECC82 / B749 / 12AU7 is one of the most rare 12AU7 tube types ever made. The Genalex 12au7 tube featured superb linearity and extremely low noise. The reissue Genalex Gold Lion ECC82 / B749 / 12AU7 tube features gold plated pins and has been carefully engineered to recreate all of the attributes of the original. The Genalex 12au7 tube is a premium replacement for all 12AU7, ECC82, 5814, and 6189 tube types. Bought last year for 220.00 from tube audio but never got around to using them. thanks for looking. Photos: Advertisements without photos of the actual item will not be approved.
  15. Item: FOUND Price Range: $750 max with post Item Condition: VG+ Extra Info: Black with wooden sides preferably. JJ
  16. Further information: A faithful reproduction, this Genalex Gold Lion KT77 has heavy glass and ruggedized plates that will allow it to handle just about any abuse you give it and still have room to breathe. With gold plated grid wire and beautiful artwork, the KT77 brings power and headroom. Bought from the US last year, never got around to using them. Cost $515.00 AU. Thanks for looking. Photos: Advertisements without photos of the actual item will not be approved.
  17. Current equivalent EVO100 selling for $3400 I have had this amp for about 4 years, the current tubes have around 400-450 hours of use. It has a small chip on the body at the back of the unit Excellent build and sound. Tubes included are Sylvania SV6L6GC, JAN 2 x 5814 and Primaluna 2 x 12AX7 Has Adaptive Auto Biasing, and you can use 6550, KT90, EL-34, KT77, 6CA7, 6L6GC, KT66, 7581, EL37, and any of their equivalent power tubes. Hand made point to point wiring. Lots of reviews online. Shipping at cost and buyers risk, pickup preferred by mutual agreement. If picked up I will add a new set of tubes and a cover for the amp, value about $250+. Photos: JJ
  18. Item: PrimaLuna EVO 400 Tube Integrated Amplifier (KT77) Black Location: Melbourne Price: $5000.00 ONO (RRP: $7928.00) Item Condition: MINT (UNMARKED with ALL ORIGINAL PACKAGING) Reason for selling: Change in personal circumstances Payment Method: Pickup - Cash, COD Only Extra Info> Surely someone wants to spoil themselves for 2020! Last month to grab before this get packed away before my new placement OS. It is with the utmost regret and disappointment that I am selling this tube amp. Due to a change in personal circumstances I can no longer enjoy the sweet sweet sounds. (This amp is only 5 months old.) I am open to any reasonable offer. Thank you. Product Description: https://www.primaluna-usa.com/primaluna-evo-400-tube-integrated Extra Info: Photos: Advertisements without photos of the actual item will not be approved.
  19. Item: E88CC Valvo RED Label x 2 Location: Southern Sydney, 2232 Price: 250 ono plus postage. ( make an offer as I am unsure of the value ) Item Condition: Used, great condition Reason for selling: NLR Payment Method: Pickup - Cash, Paypal, COD Only NB...Not sure on pricing, just going by what they seem to sell on eBay for, but always seem to be overseas. So if off the mark with price let me know ( aka make offer via PM )
  20. Item: Matched pair Telefunken 12ax7 tubes Location: Perth - will post within Aus. Price: $280 Item Condition: excellent - test as new Reason for selling: surplus Payment Method: EFT to mobile Extra Info: Ribbed plates. Tested as new With matching results by previous owner. I had them as spares but they’re using up too much space in the house. They sound clear, super detailed and quiet in my phono stage. Heaps of air and tons of seperation IMO. Photos: Advertisements without photos of the actual item will not be approved.
  21. Item: Trio of Electro-Harmonix gold pin 12ax7 tubes Location: Perth - will post within Aus. Price: $88 Item Condition: New Reason for selling: surplus Payment Method: EFT to mobile Extra Info: These are the gold pin version. Current production Russian made tubes. They came as the ‘upgraded’ tubes with my phono stage, but I had vintage tubes I wanted to use. These have never been used. Photos: Advertisements without photos of the actual item will not be approved.
  22. Item: Pair of Genelex Gold Lion 12au7 tubes $85 Location: Perth - will post within Aus. Price: $85 Item Condition: As new Reason for selling: surplus Payment Method: EFT to mobile Extra Info: These are the gold pin Gold Lions. Current production Russian made tubes. Bought new for a project but never used. Photos: Advertisements without photos of the actual item will not be approved.
  23. Item: Pair of Genelex Gold Lion 300B power tubes Location: Perth - will post within Aus. Price: $395 Item Condition: as new Reason for selling: surplus Payment Method: EFT to mobile Extra Info: These are the gold pin Gold Lions. Current production Russian made tubes. Bought new for a project but never used. Photos: Advertisements without photos of the actual item will not be approved.
  24. Item: Matched pair NOS Amperex Hammond 12ax7 tubes Location: PErth - will post within Aus. Price: $325 Item Condition: NOS - As new Reason for selling: surplus Payment Method: EFT by mobile Extra Info: Made for Hammond organs by Amperex in the Herleen plant in Holland in 1967. These were NOS when I bought them. Tested 72/73 and 73/73 by original owner on a Hickock (min good is 50/50) . I bought four and currently use two of them in my phono stage. I’ve only plugged these two in to test for this sale and confirm they play beautifully in my setup. I was keeping them as spares, but better they go to a good home and get used. They have a big, luscious, sweet and slightly warm sound IMO. I absolutely love them. Photos: Advertisements without photos of the actual item will not be approved.
  25. Item: NOS 1960 Tektronix matched pair of Telefunken 12au7 tubes Location: Perth - will post within Aus. Price: $325 Item Condition: NOS, work perfectly Reason for selling: don’t need them Payment Method: EFT to mobile Extra Info: Telefunken ribbed plate 12au7s made in West Germany and selected and matched by Tektronix in 1960 in Portland, Oregon. Cloth labels. NOS when I bought them as spares to come off the bench for my cv4003s. Unused by me and only tested out for this sale. In my SET preamp they are clear, detailed, lots of seperation, tight bass, quiet. Photos: Advertisements without photos of the actual item will not be approved.
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