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    I figured out how to "meter" the cord; my DMM has...

    I figured out how to "meter" the cord; my DMM has a "continuity" setting. Everything checked out fine, but that extra wire shows continuity with the ground; I guess I'll just connect to the chassis...
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    @Jazz P Bass - I took some pictures; I hope they...

    @Jazz P Bass - I took some pictures; I hope they show up. I don't think I've posted pictures before. I'm not sure, but I think I got this cord from Mojotone.
    @Enzo - When I saw that extra wire on...
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    3 prong cord installation

    I have a 3 prong cord I'm going to install in an amp; it has the international style color coding and an extra wire that appears to be the shielding twisted and tinned. Is there something I'm...
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    Turn on an amp w/o a speaker connected?

    Sometimes when I'm cruising eBay, I see an amp head for sale, and the seller says "Turned it on and the tubes lit up; did no further testing". I wince every time I see that. Will turning on an amp...
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    Tap water on cleaning sponge?

    I recently read a post on another forum that said you should always use distilled water on your solder cleaning sponge, because tap water contains minerals that will contaminate the solder and cause...
  6. Thread: Modern 5y3s

    by bluzmn
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    1,976

    To answer Diablo, I had already bought a Sovtek...

    To answer Diablo, I had already bought a Sovtek 5y3 when I read somewhere about the problem with voltage drop. I'm planning to put it in a Joyo JTA-05, which comes with a 5ar4 installed, so the...
  7. Thread: Modern 5y3s

    by bluzmn
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    1,976

    Modern 5y3s

    I think I read on this forum (or maybe on another one, because i couldn't find it with a search) that 5y3s being manufactured today are no good, but I don't remember the reason. Could someone please...
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    At this point, it's a case of "if it ain't broke,...

    At this point, it's a case of "if it ain't broke, don't fix it"; as Jason Lollar said, I could damage the bobbins while taking the polepieces in and out. I'm lucky I didn't do any damage this time,...
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    I put the original (broken) polepieces back in;...

    I put the original (broken) polepieces back in; they'll probably be a PITA to adjust, but I should only have to do it once or twice. I'm now able to get a pretty uniform volume across all the strings...
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    Yeah, that thought occurred to me; but damn, the...

    Yeah, that thought occurred to me; but damn, the original pole pieces make the pickup sound so hot! Maybe I'll just change the one under the 6th string to tame that volume. But first, I want to see...
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    Thanks for all the replies. After hours of...

    Thanks for all the replies. After hours of struggle and lots of squirts of PB Blaster, I was able to loosen up all of the pole pieces and remove and replace the 2 broken ones. It turns out that they...
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    It's difficult to get clear closeup pictures on...

    It's difficult to get clear closeup pictures on my little camera, but I'll try. Basically I'm trying to adjust the height of a polepiece screw, and there is no way to turn it because half of the...
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    Polepiece for Supro string-through pickup?

    I recently bought a Supro lap steel on eBay; the description said "works, but needs strings and a knob". So, as soon as I got it, I plugged it in, and it did make some sound. It only had the 3 lowest...
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    Wanted to buy: Strnad mic

    Wanted to buy: a Strnad mic for a 10 hole diatonic harp. If you have one for sale, please pm me or email - dangerousdarryl51@yahoo.com
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    @ The Dude - 1.I've already replaced the filter...

    @ The Dude - 1.I've already replaced the filter caps and the cathode bypass cap on the power tube, and no, it doesn't have the characteristic hum of dried out electrolytics. 2. The distortion seems...
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    Problem with Premier Twin 8

    When my Premier Twin 8 gets hot, it starts to lose volume and gets a distortion that sounds like a blown speaker. A few weeks ago, I put in a new(ish) Sovtek 6L6GC; I played the amp for 1/2 hour, and...
  17. Thread: JJ 5Y3?

    by bluzmn
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    JJ 5Y3?

    I've noticed that Antique Electronics Supply is now selling a 5Y3 made by JJ. Has anyone tried one of these? If so, is it more like a NOS 5Y3 than the Sovtek 5Y3?
  18. You're correct, Enzo, I'm talking about tube...

    You're correct, Enzo, I'm talking about tube socket pins and terminal strips; true point-to-point wiring. I'm sorry, but what are "dikes" and "flush cutters"?
  19. Difficulty removing components from vintage electronics

    I've been working mostly on vintage amps lately; I've found that on most of them the leads of the components are not only put through the holes in the mounting tabs but are also wrapped all the way...
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    Yes, it makes perfect sense; thanks again for the...

    Yes, it makes perfect sense; thanks again for the guidance.
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    Enzo, thank you for that concise description of...

    Enzo, thank you for that concise description of the "bringing it up on the variac" process. Why was I bringing it up on the variac with tubes in it? Because I have never found, in a book or on a...
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    Masco ME-8 - no sound...

    I finally got a chance to work on the "for parts or repair" Masco ME-8 I got on eBay. I installed a grounded cord and started bringing it up slowly on a variac (10 volts every 10 minutes or so). At...
  23. Thread: Marshall Class5

    by bluzmn
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    17648Here's a clearer schematic.

    17648Here's a clearer schematic.
  24. Thanks, Jazz P Bass. I know "Check the preamp B+...

    Thanks, Jazz P Bass. I know "Check the preamp B+ voltages for excess ripple" means check for AC voltages where there should only be DC voltages, but how do I do that with a meter?
  25. Premier Twin 8 hum-electrolytic in tremolo circuit?

    My Premier Twin 8 has a hum; not as loud and obnoxious as the hum you get from dried up filter caps, but noticeable. It's volume goes up and down with the volume control on the amp, and of course you...
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    OK, now I understand. Thank you all for your...

    OK, now I understand. Thank you all for your advice; I'm going to install a power cord and bring the amp up slowly on a variac.
    @km6xz-
    As I am watching the ammeter on the variac, what am I...
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    @Brad1- Are YOU one of the !%? If not, what the...

    @Brad1-
    Are YOU one of the !%? If not, what the hell are they doing for you that you should stand up for them? Maybe they pay most of the taxes, but they are not paying their fair share. For the...
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    OK, maybe you guys are confused because I haven't...

    OK, maybe you guys are confused because I haven't told you the whole story (you're certainly confusing me). The amp was described as an "attic find" and the AC plug is cut off; it probably hasn't...
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