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For the Heathkit folks

Discussion in 'Ham Radio Discussions' started by W5INC, Feb 8, 2019.

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  1. W4NNF

    W4NNF XML Subscriber QRZ Page

    We all have fond memories of Heath. But the time is not right for them to return, and it will likely never be. Their business model, that they could sell you an unassembled kit more cheaply than an assembled radio, and that it would be equivalent (roughly) to the mainstream gear on the market, went away a long time ago. ;)
     
    N2EY likes this.
  2. WB5WPA

    WB5WPA Ham Member QRZ Page

    Per @W4NNF , many others compete in the area today for kits, so, the market has become fragmented with many specialist 'kit' makers under different roofs, and, then there are the Chinese just around the corner with cheap rigs ....
     
  3. WB2WIK

    WB2WIK Premium Subscriber QRZ Page

    No, it's not.

    But I was also wrong. 0201 is .25mm x .125mm, which is 10 mils x 5 mils.

    I don't work much with these; only remember the first time we used them in the SMT shop at work (after spending thousands in new feeders and everything), one of the PCB techs came to me with a bunch of dust in the palm of his hand.

    "Why bring dust to me?"

    "Just wanted to show you what 1000 0201 resistors look like."

    Really did look like dust.
     
    WA7PRC likes this.
  4. WB5WPA

    WB5WPA Ham Member QRZ Page

  5. KP4SX

    KP4SX XML Subscriber QRZ Page

  6. W5INC

    W5INC XML Subscriber QRZ Page

    How do you know there were 1000 resistors in his hand and not 998? :)
     
  7. KE4OH

    KE4OH Ham Member QRZ Page

    The W-5 is indeed a good amp. When you say upgrade, what do you have in mind exactly? All a W-5 usually needs is a recap and see if any resistors drifted high.
     
    N2EY likes this.
  8. W5INC

    W5INC XML Subscriber QRZ Page

    The stereo crowd does like to tinker around, probably much more so then the AR clique of today. Who would have thought?

    Gary Dodd is a stereo amp re-builder and does a lot of work on old Heath stereo amps. Here is a picture of some amps that have been "modded" out according to Gary's specs. Looks like a few more caps were added into the circuits, along with replacing aging resistors and other "problematic" caps. These amps still get high praise from some of the audio crowd, but just like the AR mob, there is no 1 consensus on what the best tube amp is out there today. Since it is an older Heathkit it is easy to work on and the updated parts should still be readily available at the major electronic parts house. Not super high power amp but with the right speakers it should still shake the windows a tad when cranked up.


    before_w5m.JPG after_W5m.JPG
     
  9. KE4OH

    KE4OH Ham Member QRZ Page

    Heath used very good output transformers in almost all their tube amps. I'm not one of those guys on the mod(ification) squad. I like to keep things more or less the way they were designed, just with new caps. But I imagine that Gary's stiffer power supply would help the bass. I believe I might see some Auricap coupling capacitors in the "after" pic. Those are a popular choice for the golden ear set. In any case, it looks like Gary has done some relatively sane upgrades in that they didn't cost an arm and a leg plus very well may have help the sound.
     
  10. W5INC

    W5INC XML Subscriber QRZ Page

    Heath sure did use very good output transformers, whose cores where made out of high quality Nickel. The output transformers still go for good money just for that reason.Heath did use quality parts in their kits for the most part.

    1 thing about these amps, not many parts in them to begin with and pretty simple design. The upgrade's price tag doesn't look too bad and might be a good way of going if you want a stereo tube amp on the cheap. I had a Marantz amp that was being used by a family member and that unit was doused by Hurricane Harvey. It might just be a paper weight at this time but I will check it out to make sure. I am not holding out much hope for it. The W5Ms might just be the replacement pieces needed for the stereo system that has been idle here at the QTH for a long time now. Those tube stereo amps sure do hold their value, easily witnessed when checking out older tube Mcintosh amps, that still go for big bucks.
     
    KA4DPO likes this.

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