• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • Click here to find out how to win free radios from Retevis!

Search results

  1. Harley3315

    Cobra 29 ltd Chrome No tx audio

    Well I think I have Schematics for the older 29's somewhere but not this newer style with tda2030 any idea what transistor acts as the mic preamplifier?
  2. Harley3315

    Cobra 29 ltd Chrome No tx audio

    Have this on the bench with the tda2003 audio chip I have rx audio just fine no tx audio at all. Not even the pa shows any tx audio any ideas? Half burned out audio chip I think they run the tda2003 in bridge mode could half be tx half rx?
  3. Harley3315

    Cobra 29 High Power mod with 2sc1969 transistor

    Ok back to another question that was raised here earlier maybe 3 pages back has anyone tried the new 2030+ or the hg1969+ I'm here there is one of those out now as well from hg.
  4. Harley3315

    New Mosfet transistors

    Right but we are talking about UFZ24NL this the first time I've run across it.
  5. Harley3315

    New Mosfet transistors

    This whole part number is just new to me never seen one in a radio before couldn't find a reliable data sheet to compare it against a 520.
  6. Harley3315

    New Mosfet transistors

    Doesn't really answer my question as if the IRF520 will out preform it.
  7. Harley3315

    New Mosfet transistors

    Old Thread but here goes I have a v2 of the 980 on the bench with UFZ24NL final in it would there be any benefit in swapping in a 520? Pick up any out put The 880 I have with the irf520 does way better out put than this thing.
  8. Harley3315

    Adding an rfx75 to Cobra 29 XLR

    Yeah I'm aware of that I used an hg1969 in a cobra 21xlr a few years actually and there was a ceramic cap removal or change I found trolling the net on that to change and with it and the newer 1957 driver and might have changed the predriver to 941 also. soon as I did whatever it was on the cap...
  9. Harley3315

    Adding an rfx75 to Cobra 29 XLR

    I think they would likely work just fine in an ssb radio like that yes where we aren't doing a bunch of forward swing like on the 29's. I know the fet can handle it on the 29's which is why I was hoping someone could point me the right direction for those on this or help with adding the rfx75...
  10. Harley3315

    Adding an rfx75 to Cobra 29 XLR

    Tried them in my 29's before with not so great results doing the standard tip120 variable power mod they seemed to go poof pretty quick.
  11. Harley3315

    Adding an rfx75 to Cobra 29 XLR

    Sadly the radio doesn't transmit I don't have any 1969s or 2166s or original 2029 left around here just mosfets.
  12. Harley3315

    Adding an rfx75 to Cobra 29 XLR

    Yep I'm aware of all that Nomad this was the thought either the rfx75 to pick up some out put or mosfet conversion don't seem much info in the way of that on these old 858 non ssb rigs. My locals around here all run lower channels on am so great radio for that but not much out put for these old...
  13. Harley3315

    Adding an rfx75 to Cobra 29 XLR

    Those are for the normal 29 ltd/ lx the xlr is a much older 29 nothing like those
  14. Harley3315

    Adding an rfx75 to Cobra 29 XLR

    Anyone got any ideas for how to make this happen I know on the 29 ltds and such you tie it in at the final just was hoping maybe someone had an idea how to pull this one off since the radio has extra channels and stuff already.
  15. Harley3315

    Galaxy Saturn Turbo No Roger Beep

    Also I already changed the cap and the transistor think it was tr33 for the roger beep so if someone chimes in been there done that.
  16. Harley3315

    Galaxy Saturn Turbo No Roger Beep

    So I replaced the echo board the original was EPT0SSB50B this radio only had the flip switch for echo did away with that added newer style board from 2517 the newer board doesn't use the extra plug with the orange and red wire a the other end of the board. the pic of it on cb tricks isn't...
  17. Harley3315

    SB220 on 11 meter AM. Damage control.

    If I wanted to mono band I would need an isolated variable cap like the others in there already right not one that goes to the case of the tunable cap like something out of a d&a amp to hook the input off the broken band switch out out put through.
  18. Harley3315

    Uniden 980 crystal swap for lowers

    Yeah I knew about the channel king boards was just hoping to do it the cheap way. What about a clarifier mod for it ?
  19. Harley3315

    Uniden 980 crystal swap for lowers

    Or maybe add the dds vfo?
  20. Harley3315

    Uniden 980 crystal swap for lowers

    That will get me to the lower band below the normal 40?