mwhouston Posted January 1 Posted January 1 9 hours ago, Me2also said: I'll show you a couple tubes in the power amps using Sylvanias ATM (12at7 and 6L6gc). Sounds great. One of the fancy Mullard 12at7in the garbage bin because it started to hiss (Ive got some spares). How about an image taken after the earth quake. 1 1
Me2also Posted January 2 Posted January 2 17 hours ago, mwhouston said: How about an image taken after the earth quake. Yeah righto Mark. Just put a set of Phillips JAN 6l6wgb in the amps and put the Sylvania 6l6gc in the preamp with a new production Gold Lion GZ34.. Sound fantastic. 8
mwhouston Posted January 2 Posted January 2 6 hours ago, Me2also said: Yeah righto Mark. Just put a set of Phillips JAN 6l6wgb in the amps and put the Sylvania 6l6gc in the preamp with a new production Gold Lion GZ34.. Sound fantastic. You have quite a setup there. Time to enjoy. 1 1
aussievintage Posted January 3 Posted January 3 2 hours ago, mwhouston said: You have quite a setup there. Time to enjoy. Yep, just needs a better camera 1
xlr8or Posted January 10 Posted January 10 (edited) 6C5 octal triode metal cans, 227 IDHT mesh plate globes and 280 rectifier globe WE wired preamp. Edited January 10 by xlr8or 11 1 1
Silver Audiophile Posted January 10 Posted January 10 1 hour ago, xlr8or said: 6C5 octal triode metal cans, 227 IDHT mesh plate globes and 280 rectifier globe WE wired preamp. Me.. looking at this pre amp, the internals, and of course the tubes! 5
xlr8or Posted January 25 Posted January 25 Now this is interesting. Standard low powered 300B tubes (in this instance 300B ceramic base Shuggies) sound sublime in the Sound Explorer SL-770 amp using a 5U4G rectifier. More headroom is available. 7 3 2
mwhouston Posted January 28 Posted January 28 (edited) Why would you want to use this tube -F2a. Shindo Labs has used it in an SE build with a triode/pentode driver tube for a three stage amp. Shindo also like the 6L6, I get that, I like them myself. https://www.stereophile.com/content/listening-206-shindo-cortese-amplifier Edited January 28 by mwhouston 1
aussievintage Posted January 28 Posted January 28 2 hours ago, mwhouston said: Why would you want to use this tube -F2a. Shindo Labs has used it in an SE build with a triode/pentode driver tube for a three stage amp. Shindo also like the 6L6, I get that, I like them myself. Well it's a big hefty tube - 30 watts, and can handle a fairly high anode voltage. Main trouble is availability, which seems to translate to price - I don't know. One downfall it shares with EL34s is high heater current - in fact it uses 2A !!! I think it's mainly that it was a common tube used (I read) in telegraphy in Germany early on, so it used to be cheap and so people put it to use. From there the mythology takes hold, until you pay $800 for them 4
Artnet Posted January 28 Posted January 28 2 hours ago, mwhouston said: Why would you want to use this tube -F2a. Reliable long lasting, good output. I know someone who uses the Shindo F2A and has it on a lot, even to listen to the radio 7 hours a day. My Thoeress journey started with the F2A11 similar tube, different pin out. Similar origins as in it was used in telecommunications. Makes a terrific SET amp with a massive 6w output, some high efficiency speakers , lovely music. Last matched pair I bought was about that but in AU$. Could suit your Bema's Mark Some F2A11's in action. 6 1
aussievintage Posted January 28 Posted January 28 Still, I think I'd prefer a more common choice - 6550 or KT88 maybe. 2
mwhouston Posted January 28 Posted January 28 17 minutes ago, Artnet said: Reliable long lasting, good output. I know someone who uses the Shindo F2A and has it on a lot, even to listen to the radio 7 hours a day. My Thoeress journey started with the F2A11 similar tube, different pin out. Similar origins as in it was used in telecommunications. Makes a terrific SET amp with a massive 6w output, some high efficiency speakers , lovely music. Last matched pair I bought was about that but in AU$. Could suit your Bema's Mark Some F2A11's in action. No more tubes I have too many. Now have to use app what I Ve got. 2 3
Silver Audiophile Posted January 28 Posted January 28 If laying on my deathbed, say days to live, I would have a few regrets. Owning boatloads of tubes won't be one of them! Years ago, I remember a true story of an old man who had passed. He spent his final moments battling cancer listening to his Duntech Sovereigns in his farm shed. When his widow called for Kiat to collect his system, it was still left on (untouched by anyone). Life's really short, and he left this World the same way I'd like to leave it- listening to my SET amp 8 1
mwhouston Posted January 28 Posted January 28 1 hour ago, Silver Audiophile said: If laying on my deathbed, say days to live, I would have a few regrets. Owning boatloads of tubes won't be one of them! Years ago, I remember a true story of an old man who had passed. He spent his final moments battling cancer listening to his Duntech Sovereigns in his farm shed. When his widow called for Kiat to collect his system, it was still left on (untouched by anyone). Life's really short, and he left this World the same way I'd like to leave it- listening to my SET amp The more gear you have the bigger the skip in the driveway when you go. 3
Silver Audiophile Posted January 28 Posted January 28 2 hours ago, mwhouston said: The more gear you have the bigger the skip in the driveway when you go. I'm going to update my existing will. We all should be doing this regardless of age or health status. Once completed ill inform my beneficiaries (all SET audiophiles). 3 1 1
Bisguittin Posted February 6 Posted February 6 My ancient little EIKO HF-81 doing a great job driving ProAc Super Tablettes. 10 1 1
xlr8or Posted February 7 Posted February 7 (edited) Experiment 4567A worked. Now using an indirectly heated full wave rectifier (5Y3G) with the IDHT (R120). I prefer tamura iron over tango iron. Not good. Will need to move to experiment 4567B for the iron swap to confirm. Edit: Now with Mullard late 1950's Tottenham production 6SN7's. Edited February 7 by xlr8or 9
crtexcnndrm99 Posted February 7 Posted February 7 7 minutes ago, xlr8or said: Experiment 4567A worked. Now using an indirectly heated full wave rectifier (5Y3G) with the IDHT (R120). I prefer tamura iron over tango iron. Not good. Will need to move to experiment 4567B for the iron swap to confirm. Intriguing comment on the iron preferences. Do you have specific eras of either that you prefer?
xlr8or Posted February 7 Posted February 7 (edited) 2 hours ago, crtexcnndrm99 said: Intriguing comment on the iron preferences. Do you have specific eras of either that you prefer? As you are probably aware there are different core materials, winding and metal can variations used in both brands of iron. In general, what I'm finding is that Tango iron is more suited to the audiophile. In a sense it's more delicate. Tamura iron on the other hand just fleshes out the music. Era wise I prefer the iron from the 1960's and 1970's. Historically up to the late 1990's there were far more options and variety available. The catalogues would run over several pages as per attached files. In today's catalogues youre lucky to find 1 or 2 pages at most. Tamura Audio Transformers (1997).pdf tango_cat.pdf Edited February 7 by xlr8or 3 1 2
calypso Posted February 7 Posted February 7 Scored a pair of new in the box Mullard ecc34's. Anyone know the date code? xlr8or? 5
xlr8or Posted February 7 Posted February 7 12 minutes ago, calypso said: Scored a pair of new in the box Mullard ecc34's. Anyone know the date code? xlr8or? Mullard Blackburn September 1952 production. Great score! Enjoy countless hours of no sleep. 3
mwhouston Posted February 7 Posted February 7 7 minutes ago, xlr8or said: Mullard Blackburn September 1952 production. Great score! Enjoy countless hours of no sleep. Not doubting you but how did you decode the date.
mwhouston Posted February 7 Posted February 7 29 minutes ago, calypso said: Scored a pair of new in the box Mullard ecc34's. Anyone know the date code? xlr8or? What is the fascination of this tube? It appears as a dual triode tube like a 6SN7. Why this tube?
xlr8or Posted February 7 Posted February 7 (edited) 9 hours ago, mwhouston said: Not doubting you but how did you decode the date. The 4-numbered digit signifies Mullard Blackburn production from the late 1940's to the mid 1950's. The number itself is a unique identifier for the tube type. In this specific case the 1322 is an ECC34. I = the month of production (9th month) 2 = the year of production (1952) Information generated by DeepSeek Captain Kirk opensource v5. Edited February 7 by xlr8or 3 2
mwhouston Posted February 7 Posted February 7 Why the “f” do they just not print 1952. We know what the tube is. Im still questioning why one of these. Why are they so special? OK i know I got sucked into EL3Ns and 01a but why this (appears rare) and expensive tube where a 6SN7 would do? What magic sonic quality do they possess? And “NO”, this time, Im not getting sucked in.
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