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Analogman

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  1. Analogman

    AR-5 Frequency Response "Problem"

    Yes, like they were measuring two different boxes (systems) altogether
  2. Analogman

    Blown New Advent driver

    I haven't been argumentative about anything Kent. If standing one's ground on points that one knows to be FACTS is "argumentative" to you or anyone else then so be it. You have always been very kind and helpful towards me and I appreciate that. I have acknowledged and thanked you for it publicly on several occasions. Same to be said about several other folks here as well. But I am not a person that's going to just go along to get along when some folks are just talking nonsense, and or, spreading misinformation or insisting on things that just aren't so This thread was a waste of time as the initial description of the issue was articulated horribly, right out of the gate, (and NOW we know, inaccurately) The first post would have led anyone to believe the OP's situation was the result of a transient event (mode switching or whatever with the amp turned way up) Craig
  3. Analogman

    Blown New Advent driver

    Why would they? Ah, but actually someone did, right out of the gate - Aadams You stated in your second post to this thread that you had already addressed the foam on your woofers when suggested as a possible cause of your complaint by Aadams IN THE FIRST POST TO THIS THREAD AFTER YOU STARTED IT FOUR MONTHS AGO So, after all this palaver, the problem was a poorly done re-edge job - one done by yourself? And you're throwing insults in my direction for making the mistake of trying to help you Gotta love it Craig
  4. Analogman

    I'm afraid it has happened?

    Don't know why ANYONE is buying or fooling with the rape job, over priced chinese CTS repro crap....................... .................when, for THE MOMENT, just about every incarnation of that CTS masterpiece is for sale on ePay in quantities ranging from singles to assembly line cases and ALL New Old Stock, AND every example I've researched was being offered by sellers with monster positive feedback(s) If the repros are what you want you can buy them off epay for about half of what the friendly guys at simply speakers etc et al. are gouging you for - the L25 JBL chinese repros too The chinese L25 repro can be had for around $25, SS is gouging at $79.95! Ridiculous - I've had some interesting correspondence with 'em on the fact that they're just re-selling the same junk off the net to which they make no denial (did say they had plans in the works to adjust their asking downwards, instead it's actually gone up) Same driver, same factory same everything as the $25 unit - they even use the same STOCK PHOTOS sans SS paper sticker on the magnet Guys, please don't support this crap until there is no other choice.............................and even then.......: - ( Craig
  5. Analogman

    AR-5 Frequency Response "Problem"

    What's the end game debating the merits of reviews for speakers, now in some instances, pushing 60 years old? I personally have owned "2-ax"s "5"s "3"s and "3a"s The "5" with nothing more than fresh woofer edges was a better sounding, less dated sounding all 'rounder than any incarnation of the "3" that I have owned - that was my experience With a fresh set of by-passed Daytons they were holographic (I don't deal in BS hyperbole) they threw out a sound field that went well beyond the boundaries of the speakers, I mean WAAAY out, almost like a really well implemented Hughes AK 100 type circuit - few visitors believed they were just being powered with a modest ("vintage") old Marantz and nothing more And I have absolutely NO idea how I can, could or would want to qualify, quantify, justify or explain my real life experience so it fits any of the narratives and rubberchickenmographs of these dusty old reviews - THEN or NOW All I know is what happened to me and how today I am still kicking myself in the ass for selling those "5"s for, you guessed it, money to apply to a clean pair of "3a"s that couldn't hold a candle to those "5"s - why? I do not know The "3" is a cult of personality - I think a lot of people are as in love with the old stories and ad copy as they are with the lab results done on NEW examples 40 50 or even 60 years ago and which is absolutely meaningless today thanks to time For any make, not just AR, any of 'em, JBL, Kloss stuff Advent, Altec etc Just enjoy your speakers and what's left of what they once were Craig
  6. Analogman

    AR 3 WIRING POTS

    Great! Sounds good, you'll be fine As for the flux, you don't need flux for aluminum work unless you are soldering aluminum Like I posted earlier up this thread, SP-44 or similar is fine for everything else Not a big deal no matter though Craig
  7. Analogman

    AR 3 WIRING POTS

    I would think the whole what's trying to be accomplished thing is pretty much the same for all of us - to restore the pots to "as new" working order or as close to it as is possible Many ways will work that's for sure but no need for a sledge hammer when a scalpel will do - and do less damage/shorten the life of the pot in the meantime as well I personally see no merit or upside to washing anything (with water) I'm going to take apart anyway - especially anything electronics related If there is so much corrosion on the wiper (the green rot) that I need to give it an acid bath first to determine the condition of what I'm working with (if it's still serviceable) then I can pretty much make the call right then and there I need another candidate That's the road I like to take Craig
  8. Analogman

    AR 3 WIRING POTS

    I think the Aetna-Pollak pots are of very high quality, especially for a vented wire wound type - they're just one of those parts that's never, if ever, serviced by typical consumer type end users Out of sight out of mind and for 99.9% of the typical AR owners back in the day and were given little thought if any until they misbehaved, generally decades after the speakers were new It's amazing how long so many of them have lasted with zero service - same as with JBL and a few other who used similar types Those same pots in a studio or pro environment would be on a list of things receiving regular and routine maintenance It's not the pots' fault
  9. Analogman

    AR 3 WIRING POTS

    "44" is Kester's product line 60/40 is perfectly fine but it is NOT a eutectic alloy Eutectic solder melts at a slightly lower temperature and solidifies (goes from liquid to solid) almost instantly so less chance of grey, grainy or cold joints - also gives you better wetting This characteristic is also of great help when you are dealing with delicate or hard to hold/get to joints If you are preparing to purchase some solder get Kester 63/37 - Parts Express or any of the big vendors will have it It will cost you 2 or 3 dollars more than the 60/40 but it is well worth the nominal increase The Kester # is 24-6337-0027 And yes, I think the .031" wire is the most versatile size wire The number I gave you is for a pound - I quite buying the small tubes a long time ago - the costs for those will eat you alive over time, especially if you do even a moderate amount of work The 1/2 ounce tubes should cost around 3 bucks, so no, that's not such a great deal UNLESS that price includes shipping If that's all you want or need, buy it from Parts Express when you order your caps so the shipping won't eat you alive - they have 63/37 in the small 1/2 ounce tubes as well (I gave my opinion on what caps I would use in your other thread) If you elect to go with my adivice then you'll be able get all of your parts and supplies from the same vendor - i.e. one order - one shipping cost https://www.parts-express.com/kester-pocket-pak-solder-63-37-0031-050-oz-tube--370-053
  10. Analogman

    AR 3 WIRING POTS

    As for soldering aluminum? If Kester SP-44 (now discontinued and hard to find - luckily I bought a whole pound off the auction site a while back from an electronics store closeout) won't do the trick, you'll have to use one of the highly activated/aggressive types like F61A or similar - plenty of choices available on-line and in small quantity I've never had any issues with the little bit of aluminum work I've encountered BUT you have to really clean he aluminum to get it to stick no matter what flux you use - as in lightly sand the joint and clean it - don't fool around and do the work right away The rest is the same as soldering any wire - just buy yourself a small bottle of aluminum flux and keep it on hand for the rare occasions you might need it ALWAYS use flux for ANY soldering job and ALWAYS use a eutectic blend and you shouldn't have any problems Craig
  11. Analogman

    AR 3 WIRING POTS

    When polishing contacts go to any and all lengths to AVOID harsh abrasives (like sand papers or grinding bits) Using those will only create micro scratches where new corrosion can more easily return - they also remove more material than is needed to get the contacts clean and shiny (and more importantly- conductive again) IF you have to use an abrasive (mechanical) then keep it at 1500 wet/dry paper at most dampened with either deoxit or isopropyl alcohol - insert between the wiper and the coil and work the pot to clean the wiper then flip the paper and just drag it over the coils using only the pressure provided by the tension of the wiper Use Flitz or Maas applied judiciously with a cotton swab ("Q" tip), work the pot and clean up with 99% alcohol or even deoxit or a product like the CRC stuff for electronics Clean the brass contacts at either end of the coils with the "Q" tip and the polish as well Do not wash pots with water or immerse them in anything (liquid) as there is no real need for it After all the conducting elements are clean then treat them with whatever contact enhancer/preserver you like - I personally use a THIN film of dielectric grease but deoxit is fine here too as well as any number of products designed for the task The greatest advantage I have found of using dielectric grease is that it will outlast all the others before reapplication is required (if at all) as well as, and more importantly so, reduce contact wear on the wiper. Makes the pot "feel" better too Lubricate the shafts with a good heavy grease like one of the Nye lubricant products or similar (a thin film of the 300,000 cSt silicone so popular for fixing turntable cue lifts works well too) to give your controls that nice smooth tactile feel as well as sealing them from the elements - whatever you have on hand or is practical for you, just don't reassemble the pots "dry" through the bushing The trick to getting 100% results to restoring these things is to go EASY on them when cleaning Craig
  12. Analogman

    AR 3 WIRING POTS

    What is it that's aluminum you are soldering? I assume your original pots are the infamous Aetna-Pollak types? If so, no aluminum there Regardless, it's welding aluminum that requires a higher level of skill than ferrous metals Basic electronics soldering is just that - soldering - heat the joint until it's hot enough to melt the solder and have at it Keep in mind too that solder, when connecting circuits involving WIRE(s), in and of itself is NOT the connection (we're not taking surface mount here) but rather the insurance that the mechanical connection holds and sustains good contact and conductivity Always use a good iron, a eutectic alloy and always use flux (even if the solder wire you use states "rosin core") and you will have few problems if any
  13. Analogman

    Capacitores for ar3 ?

    Dayton (their 5% model, don't waste the extra money on the 1% "versions", trust me) and or the standard Solens I have used both in ARs and both have yielded superlative results (and lots of positive comments, not about or from "cap people" but people just saying "wow" about how good the systems sounded) I say that about the Daytons because I measured a large clutch of them, in a multitude of values, and the accuracy factor on the 5% versions was just as good as with the 1%ers and they cost considerably less I also (personal preference) by-pass all polypropylenes with a .01uF film and foil type but that's up to you, it's not a requisite Both caps are VERY good quality wise - but the very best sounding pair of ARs I ever refreshed did get the Solens treatment (the caps themselves or just coincidence, who knows?) You can't go wrong with either one - for the past 10 years all I've used for crossovers has been the Daytons and I've not been disappointed with the results on any pair I've done Ranging the gamut from dead drivers to just being way off spec (or open) Don't fall for the boutique crap and waste a lot of money whatever you choose Craig
  14. Analogman

    AR-2ax SOLID BRASS Version Badge

    Bump
  15. Analogman

    AR 3 WIRING POTS

    I don't think anyone said or implied that you could unless I missed something For me, it's a matter of maintaining decades of maximum circuit integrity in as many spots as is practical (and less things to clean service and drench with deoxit) I've had plenty of KLHs (and others, notably University who also loved them some wire nuts) with dead tweeters and the culprit was green oxidation in, you guessed it, the wire nut connection(s) Soldered connections, properly dressed after they're done will last a lifetime or two No excuse not to do the job the best it can be done except laziness or rationalization Craig
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