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  1. DTB Radio

    Avoid this customer!

    He goes by Roberto Renta, and Cielo Renta. Known email address is crenta@aol.com. His shipping address is in East Elmhurst, NJ. He comes off as a big spender, but in the long run, he's cost me a heck of a lot more than he's spent, in the form of lost potential customers and lost revenue, etc...
  2. DTB Radio

    My old friend President Jackson.

    So far these seem to be genuine Jackson boards all the way, right down to some of the part manufacturers that have been gone for years. I agree on the screws. I've been replacing the ones I find stripped, but I'm going to have to start replacing all of them. I apparently dropped the ball...
  3. DTB Radio

    My old friend President Jackson.

    Not sure what anyone else is seeing, but I'm noticing that almost every one of these out of the box has loose/stripped screws or screw holes.
  4. DTB Radio

    Radio Repair Review- DTB Radio

    Thanks for the flowers, I appreciate it!
  5. DTB Radio

    In need of wisdom for new radio

    My price does include conversion, tuning, and frequency alignment.
  6. DTB Radio

    cobra 29 chrome no audio out

    Long shot here, but if you're mounting the radio in a bracket and tightening the mount knobs way down, it could be pulling the audio chip away from the circuit board. Problem with that theory is that the receive audio would be gone, as well, and you stated that you still had good receive. Only...
  7. DTB Radio

    This guy is a real winner! LOL

    This reminds me of a 142 I fixed about 15 years ago. A local fellow gave me a big bag full of a radio parts, which turned out to be all the bits and pieces of a Cobra 142 that his wife had sledge-hammered. The circuit board was mostly dislodged from the chassis, and was in several different...
  8. DTB Radio

    How much is radioactiveradios.com worth?

    I don't know if this should be in the controversial section or not. I thought it was funny, and not particularly controversial. Anyway, while I was doing some research into how websites and domain names are valued, I found the Radioactive Radios website listed in an online website evaluator. I...
  9. DTB Radio

    sparkys has the 50th anniversary cobra 29 for sale

    Sparky's price does seem a bit high, unless tuning and/or shipping are included
  10. DTB Radio

    signal jammers

    An idea for a short-range wideband transmitter would be to take a PLL-controlled CB, unhook the VCO from the PLL chip, and use an oscillating voltage (sin wave, triangle wave, or sawtooth) to drive the VCO. To keep the CB within a certain band, just set the peak voltage of the oscillator output...
  11. DTB Radio

    NEW COBRA 29 LX LE - COMING SOON!

    Having seen the inside of this radio, I think most (if not all) of the main-board mods for prior versions of the 29 will apply to this unit. We've got a case arriving this coming Monday, and we've already had customers placing online orders just to make sure they don't miss out on the first...
  12. DTB Radio

    Radio Shack IRF-510 in a Cobra 29 Impressions

    I recommend putting the jumper back in place. If the AMC is intact and working properly, AND adjusted properly, you can crank the mic gain with absolutely zero distortion, yielding better average modulation. You might see a slight dip in the PEP on your meter, but the actual PEP will not have...
  13. DTB Radio

    Stryker 447HP Good or Bad

    Pricing aside, the 447 seems to be every bit as good as the 440. One thing you may need to watch out for over the long term is the 5-volt regulator used on the channel selector/display board. The original regulator was a 7805 IC, but the new one os some kind of miniaturized swithcing regulator...
  14. DTB Radio

    RCI 2980 WX

    I'm not sure if there is actually supposed to be a correlation, but if there is, it's PEP. I don't think I've ever seen a base radio with the 0-50 variable that matched what the variable was set at.
  15. DTB Radio

    mobile ?

    Comb through the various CB forums and see who seems to get the most praise. You can also visit White List of CB Shops for some shops to research before making a decision.
  16. DTB Radio

    Super Wack Pack II

    I think I may have finally seen the Super Wackpack II. A customer came in yesterday with a General Lee he'd purchased from RA. It had the usual diode at the AM regulator (NPC mod), but in addition, the NB/ANL switch had been wired across the AMC transistor through a couple of resistors...
  17. DTB Radio

    Cobra 29, Mosfet conversion.

    I love MOSFET's in most radios. They're inexpensive (you can find IRF520's for less than a dollar each if you REALLY look hard, and don't mind waiting a bit), and at do every bit as good a job in a 29-style radio as the 1969 final did. The specs you quoted on your radio don't look too good...
  18. DTB Radio

    Super Wack Pack II

    Wow, this shows you how busy I've been. I'm just now replying to this, lol! Anyway, how I have been is busy. As for the WhackPacks, 1, 2, or Super, They are basically glorified NPC modifications (as someone mentioned) . I've seen some RA radios with the finals volted (generally never a good...
  19. DTB Radio

    Radioactive Wack Pack Unveiled

    Hard to believe this thread is still active after more than 4 years.
  20. DTB Radio

    99V scans threw channels?

    In my experience this is almost always a bad solder joint in the VCO/PLL circuit. In some cases, the joint is visibly cracked, in other cases I find that carefully touching up all the joints in that area does the trick. Sometimes you can isolate the part by gently moving individual parts, but...