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  1. 3

    Roadstar RS-309 info needed

    No sorry not for sale in process of fitting new channel switch and epromming it for lo’s, mids and hi’s.
  2. 3

    Help needed Air command superscope CB-640

    Hi all, Thank you for the information i will check out the ch9 switch and pass throughs and report back.
  3. 3

    Help needed Air command superscope CB-640

    Hi all Just picked up one of these but it has a problem and was hoping some of you guys may be familiar with this radio, i am in the UK so we don’t see many of these. The binary code is stuck on the ch9 code no matter what channel you select. The Vco appears unlocked as when i try to set the vco...
  4. 3

    Roadstar RS-309 info needed

    All received!! They are perfect. Thanks for the suggestion on the eprom, a mate of mine has said he may have a seitch assembly from a scrap rig so i may have something to start with
  5. 3

    Roadstar RS-309 info needed

    Ok will pm you my email address. I am in the UK near London, never heard of one of these before and we have a few cb shops but most wont have parts for this they tend to carry parts for out stand alone 40 fm channels, or sell 10m radios a lot of the dx’ers buy and convert to run on 11m. I will...
  6. 3

    Roadstar RS-309 info needed

    Hi Hpssb Yes mine is the 9 channel version, interesting about the 40 channel switch i will keep an eye out in case one ever comes up for sale.
  7. 3

    Roadstar RS-309 info needed

    Hi hpssb Looks exactly the same!! Great find. If you wouldnt mind posting / mailing acopy of the schematic /service manual that would be very much appreciated, thank you. Mark
  8. 3

    Roadstar RS-309 info needed

    Hi all Anyone have a schematic or service manual on this radio? Doesn’t seem to be a lot of info on these. Thanks Mark
  9. 3

    Royce 1-642 Modulation Help Please

    Managed to try the procedure last night - very interesting! I got 70ma across the cut wire link in the ammeter before touching anything, moving VR14 to zero took the 70ma to zero, so i put it back to 70ma with VR14 then turned VR13 ( which was set at halfway) to both ends of adjustment and it...
  10. 3

    Royce 1-642 Modulation Help Please

    Brilliant! Thank you ever so much i will have a go at the weekend and report back
  11. 3

    Royce 1-642 Modulation Help Please

    Hi nomad - posted the info you requested, any thoughts?
  12. 3

    Wanted ETT-73024 Haruna Denki transformer

    Hi all Still looking for the above if anyone has one in there oddments box
  13. 3

    Royce 1-642 Modulation Help Please

    I would like to double check the driver and final bias values as I did attempt to set them some time back and I an wondering if maybe I haven't done it correctly. Originally I was working of the Pace 8193 service manual which when you cut the wire link shown in the photos (putting an ammeter...
  14. 3

    Royce 1-642 Modulation Help Please

    This took some doing on the recording front but hopefully you can hear the files, recorded them with SSB ALC on Max and Min. Its the distorted buzz around the edges that is the problem / reports I am getting, if i then run a linear its even worse. Its not a clean sounding mod and its a brand new...
  15. 3

    Royce 1-642 Modulation Help Please

    Hi all Am I barking up the wrong tree here? I set up to record the radio mod and it sounded off frequency to me tonight so I set up my oscilloscope and two generator and include the images below, now I am still trying to lean so no expert but the ALC (VR11) from the modulation envelopes appears...
  16. 3

    Royce 1-642 Modulation Help Please

    Hi Yes double checked onanother radio i have and the reports i was getting are valud it doesn’t sound right. I will try and record a wav file of it set to min and max on the ALC and see if i can upload those instead of jpegs, hopefully if you guys can hear it, that may point me in the right...
  17. 3

    Royce 1-642 Modulation Help Please

    Just tried radio in PA mode and it sound lovely so may just be limited to SSB. I willtry transmitting tomorrow eve yo another radio on AM and see if it is diatorted.
  18. 3

    Royce 1-642 Modulation Help Please

    Hi all Sorry for the delay in replying to all your comments I hadn't been well over the past few days. Firstly, Staybolt for a forum where like minded radio users come together to help each other, thank you for your extremely valuable input to help resolve my issue. I will answer some of the...
  19. 3

    Royce 1-642 Modulation Help Please

    Hi all After some help to solve a recent problem that has come to light, I have been getting reports of poor modulation from users both local and long distance when I am DX'ing. Set up a radio near by and my mod sounds gritty / distorted on SSB. I tried adjusting VR11 (SSB ALC) and although it...
  20. 3

    Royce 1-614 car radio / cb radio help

    Hi nomadradio Any luck when you checked at work? Thanks Mark