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Recent content by Number Three

  1. Number Three

    2995DX,

    Well of course, most radio manufacturers now use mosfets exclusively and it is apples and oranges when I'm talking about this thing and the erf520 and the 2sb754's( or B827's) used -- and I'm not trying to single-out RCI, because RMItaly amps, RFX75 bricks ad nauseam do it too. And it would be...
  2. Number Three

    Rotary Channel Selector RCI-2990

    Part #EWRT320975 You can also go thru Ranger direct and get it.
  3. Number Three

    2995DX,

    True, RF Parts still has a huge supply of them, but they love them a bit too much. Luckily, I bought a BUNCH of C2166's when they went NLS. Digikey and other suppliers will give us a heads-up on devices we've purchased that are being discontinued, which gives us a chance to snap them up I wish I...
  4. Number Three

    2995DX,

    I've concluded that the final stage is indeed an R&R Communications mod, and I now understand WHY. This is the way to go! Tho R&R chose to leave the briuck amp alone (as far as I can tell), They literally FIXED what I consider a major "factory defect" with those switching supply and AF devices...
  5. Number Three

    Antron 99 Problems

    Is the base of the 99 grounded tp the tower, and the tower to a good earth ground? If the base of the GP is insulated, the ground return must travel all the way to the other end of the coax, and then, to whatever the closest ground point is, be it the Radio, lighting arrestor, tuner etc... That...
  6. Number Three

    RCI-2990 SSB low receive

    Which board does that radio have in it? The symptoms can be caused by a dirty mode switch, or a failure anywhere between the crystal filter, (F3 in many RCI's) and the product detector. Lots of real estate there. Two can coils, a bridge network of general purpose diodes, and about 5...
  7. Number Three

    2995DX,

    I have a heavilly-modded RCI2950DX here, and was wondering if the finals are stock, or yet one more modification. It has the EPT695014B sm Mainboard in it, but it instead of mosfets (as shown in most service manuals), it has bipolar transistors. The 2sc2166 and a single 2sc1969 setup, as opposed...
  8. Number Three

    Splain something to me lucy

    Uh .......... I got nuthin :unsure:
  9. Number Three

    Has your Yaesu ever failed and need repair?

    I'm kind of a late arrival to this thread, but need to add my 'too scents'..I've been a ham for a long time and have had experiences with 'the big three', Yaesu,Icom and Kenwood HF and also VHF rigs. I've had zero issues out of my VHF equipment from any maker. HF is another story altogether...