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Search results

  1. 500kpot

    11 meter Extended Double Zepp

    There was a nice burst of skip here this morning. First Hawaii then I started hearing Oregon, Washington and then San Diego which is only about 200 miles away. Its dead now. I'm on a double bazooka inverted v dipole for reference.
  2. 500kpot

    11 meter Extended Double Zepp

    Sounds like it's already working good. Is your attachment to the antenna with the 300 ohm balanced line?
  3. 500kpot

    11 meter Extended Double Zepp

    I had considered building this antenna but chose another instead due to space restrictions. This attachment may or may not be useful to you. I hope it is, thou.
  4. 500kpot

    Dam Virus got my friend

    Now to our homes we haste away, Still filled with love and light; And may each heart in kindness say, Good night, brother, good night.
  5. 500kpot

    Cobra 25/29 10k slide help.

    I tried that 5351/328 combination. I read the same post and asked for a copy of the software but no one ever got back to me so I just made a VFO. I tried running at 5 mhz using the trippler coil, and at around 15mhz. With the rotary encoder the operation is more fun than 10kc/5kc. Using...
  6. 500kpot

    Cobra 25/29 10k slide help.

    I agree with you, Mr. Kopcicle, you the real way is to dump the 2816. There is no 10.695 oscillator in the 29 only 10.240. The 10.695 is generated for RX by shifting the n-code down and mixing that with the incoming 27m .91 is the RX n-code So for TX it would be (Stock 5.12m * 3) 15.360...
  7. 500kpot

    Cobra 25/29 10k slide help.

    Won't this destroy the 455khz 2nd RX IF? I think one correct way to accomplish this is to build a 5.12 mhz oscillator and replace the signal from the pll going into L19. Then pull that with a varactor. 10khz slide is easy to achieve with this method. I found pulling a crystal 10khz is hard to...
  8. 500kpot

    TDA2003 amp getting hot

    Thanks for the breakdown on the TDA2003. I'm familiar with opamps and understand how to set gain and so forth. C44 is an interesting add as this part isn't shown as required on the mfg. spec sheet. Again, I could be wrong but it seems that is part of the EQ as well. Transformer oomph is...
  9. 500kpot

    TDA2003 amp getting hot

    I have played with the AM regulator. It was quite a learning experience, to say the least. Yes, that is how I was thinking about that as well. It make perfect sense. Personally myself when I think of reactance modulation I think of this *This image is from...
  10. 500kpot

    TDA2003 amp getting hot

    Okay cool. Thanks for the info. I noticed in the first graphic the output was going to an oscillator not the RF so I was a bit confused on that till I read a bit more. What isn't (or at least I haven't found the answer to) apparent is how much inductance it would take to have a true...
  11. 500kpot

    TDA2003 amp getting hot

    Is the 29/25 audio transformer a true reactance modulator? Thanks in advance for any information.
  12. 500kpot

    What electronics have YOU fixed lately?

    I don't know about the future of pulse audio but I just made the most bombastic home made pizza. Damn this is good...way better than alsa or pulse.
  13. 500kpot

    What electronics have YOU fixed lately?

    @kopcicle So do you put liberal democrats in the same light as how s*itty pluse and alsa are?
  14. 500kpot

    What electronics have YOU fixed lately?

    @kopcicle I built a working Cubic on linux too. Your right total PITA. I see your running your audio through pulse. I've used Jack but I don't know if it makes any difference.
  15. 500kpot

    Noise difference on SSB vs AM

    Thanks for your input Mudfoot. I appreciate it. @handyandy - Condolences I know how hard it is loose pets. My GF is a vet tech and I hear about this all the time - it makes me sad. Warmest Wishes.
  16. 500kpot

    Noise difference on SSB vs AM

    Oh, I don't really worry about the noise from the hair dryer. Its so infrequent there is no need to pursue any further. The kitchen LEDs was a big a$$ problem. On a test basis the chokes did help a great deal with the hairdryer but its not conclusive as I had already added chokes around the...
  17. 500kpot

    Noise difference on SSB vs AM

    Shadetree Mechanic I was just being silly. She only uses the dryer in the morning for a few minutes. I just thought it was funny because after I installed them she was like "What the f* is this?" and I found myself regurgitating the information I read. All I got was an eye roll and my...
  18. 500kpot

    Noise difference on SSB vs AM

    Hello TXRiverRat, I studied the document I've attached and was able to eliminate a vast majority of noise in my receiver (Cobra 29) even finding and fixing an LED kitchen light(s) fixture where it produced noise similar to what you describe. On a silly note my GFs hair dryer is a major...
  19. 500kpot

    Astatic D-104 lollipop mic questions

    I used the FET (MPF102) version with separate bass and treble controls. The PCB was home brewed. The schematic is freely available. I've been wanting to try the 2sk170 instead of the MPF102.
  20. 500kpot

    Astatic D-104 lollipop mic questions

    CB, I'm using a D104/MC320 with the "poor mans EQ" circuit and I'm quite pleased with it. It does take a 9 volt battery.