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  1. Hi and welcome to the forum. Looks like a SPDT...

    Hi and welcome to the forum.

    Looks like a SPDT switch. What you can't tell from the picture is if any of them are momentary as opposed to the regular latching type. What amp is it for?
  2. I'm not saying it isn't the tank, just that the...

    I'm not saying it isn't the tank, just that the driver transducers are an uncommon failure. It isn't impossible that the coil reads OK on your DMM but fails under load. They take a fair bit of...
  3. Input transducers are an uncommon failure....

    Input transducers are an uncommon failure. Usually the output transducer goes open and mainly with the 220 ohm DCR output coils. I would say I get around 1 in 30 trays where the driver coil is the...
  4. That's right. If the recovery circuit and cable...

    That's right. If the recovery circuit and cable is good, then if you plug in the tray and tap it you should get a strong signal out. If not, either there is a connection issue with the plug/socket or...
  5. Unplug the reverb and touch a finger on the...

    Unplug the reverb and touch a finger on the output connection phono plug with the reverb control at half way. If you get aloud buzz then the recovery circuit is most likely working fine. If no buzz...
  6. I have to say that method of connecting an...

    I have to say that method of connecting an onboard FX unit is a first for me. So, there's a completely standalone fuzz sitting in there that you plug into like it was a cased pedal. Troubleshooting...
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    I've sometimes found that an otherwise good...

    I've sometimes found that an otherwise good pickup can have just a spot of green corrosion on the outer layer. Just enough to make a pickup read much higher DC resistance than expected. The pickup...
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    True oil does slightly tint, but not much. It...

    True oil does slightly tint, but not much. It goes a little darker than the wood does when wet. I usually have to do some staining to match an existing finish. Apply a wet finger to your neck and see...
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    I've been using Tru-oil lately and have had...

    I've been using Tru-oil lately and have had really good results. A body I did ended up a mirror finish with no grain filling required. It's a little soft, though. It takes time to build up a finish....
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    Here in the UK we did get some Russian consumer...

    Here in the UK we did get some Russian consumer goods and during the 70s Russian transistor radios and hi-fi could be bought. Usually these were westernized brands. I dismantled a few radios for...
  11. I did cut one of the older linear...

    I did cut one of the older linear charger/supplies open. It's a transformer, bridge rectifier and capacitor. It supplies way too much current and not enough voltage.
  12. I built a charger for one of these amps earlier...

    I built a charger for one of these amps earlier on this year. I used a pair of LM317 regulators - to regulate both current and voltage so that the batteries are charged at 10% of their rated...
  13. Mouser has a UK-facing operation, but I've never...

    Mouser has a UK-facing operation, but I've never ordered from them because I'm not sure where the products are shipped from, or whether there are additional taxes or import duty to pay.
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    Yes. Or the USA. The stock reel from Belden is...

    Yes. Or the USA. The stock reel from Belden is 1000ft at $1049.50 plus shipping/duty. There used to be a company that re-spooled it at 50 metres over here, but they finished. I don't think it's...
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    My customer buys it as assembled cables from...

    My customer buys it as assembled cables from Japan. Big money with import fees and shipping. He then gives it to me to chop up to make up smaller patch leads. I though it would be easy to find, but I...
  16. On some older tantalum caps if there's a dot in...

    On some older tantalum caps if there's a dot in the coding scheme, when this faces you the RH leg is positive. I think most modern caps follow similar - when you read the value the RH leg is...
  17. There's an old technique called the 'disruption...

    There's an old technique called the 'disruption test'. Basically. plug the guitar in and use an uninsulated metal probe to check through the main connection points in your guitar. Begin with the hot...
  18. Take a look where the + battery lead connects to...

    Take a look where the + battery lead connects to one of the capacitors and this will tell you the polarity of these. Alternatively, power up the unit and use yourr DMM to determine the polarity. Or...
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    Peavey UK sold up a few years ago. A few studios...

    Peavey UK sold up a few years ago. A few studios and music shops bought a lot of equipment and I had about 18 months of mainly Peavey repairs. Much of it was customer warranty returns where they'd...
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    European Belden 9778

    Where can I buy Belden 9778 cable in Europe?
  21. I think either a bad connection or the reverb...

    I think either a bad connection or the reverb output coil is open-circuit - very common, or one of the internal connecting leads inside the tank is broken (usually one of the green ones - also...
  22. You know something - I did check the transistors...

    You know something - I did check the transistors beforehand on my component analyzer - Hfe (158) and leakage. Just rechecked and what I didn't spot originally was the Japanese pin orientation - these...
  23. A wah favourite of mine is the Maestro Boomerang....

    A wah favourite of mine is the Maestro Boomerang. It works fine with a regular 100k pot and I've built a few of these into gutted pedals. Used in the theme from Shaft.
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    Quite a few years ago I bought some replacement...

    Quite a few years ago I bought some replacement can caps from Marshall to replace LCR ones in (I think in a JCM900) and they sent me JJs. Thats the first time I'd used them and I thought "well, if...
  25. I did a reinstal and got a message to run "sudo...

    I did a reinstal and got a message to run "sudo dpkg --configure -a" manually. Now there's a line in the helper application for .pdf files, which was previously missing, so a step forward. If I now...
  26. I attempted to first back up my profile which...

    I attempted to first back up my profile which according to the Mozilla help is under .thunderbird. However, this folder only contains two sub-folders - crash reports and pending pings (this is with...
  27. I got them from a long-standing supplier of...

    I got them from a long-standing supplier of components here in the UK. They mainly specialise in out-of production tubes and semiconductors and I've been buying from them for a long time and never...
  28. Lost a whole afternoon due to fake/faulty/mislabelled transistors

    I replaced a transistor with a base-emitter short as well as some associated components that are part of a protection circuit. It still went into protect. No DC on the output, no short, no thermal...
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