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  1. O

    So My Radioddity QT40 came with a programing cable.

    Not sure if this is the new normal but mine came with this. I have not had more time since it arrived 2 days ago to see if it comes with a software disk or anything else. In the past I thought you had to pay extra for this?
  2. O

    So I serached the internet and zero Anytone Aries II video's with less than 12-15w carrier and 50 Watt pep

    So not only could I not find any video's showing the radio's modulation charteristics at low power but zero NPC video's showing modulation envelope at low power! Given that the radio tops out at 50 watts in this age of 100+ watt radios you would think someone would say " I should demonstrate...
  3. O

    Slightly Outside of RF Wheel House: Transistor Adapter Idea from Adiophile Electronic Obsolete Parts

    Here is a video on youtube. It is short and has the images, idea's and links to the person developing it. I am sure at some point this idea might be benifical for RF electronic repair and home brewing many projects not only rf related. Hope this idea spurs innovation and cooperation! Cheer's!
  4. O

    54Mhz Slug Suprise

    So I installed a 108" whip and some 18' of LMR 400. I had a Uniden PC78XL that I bought about 10 years ago as NOS. It looked like NOS in every single way right down to none of the hardware, power cable, mic looking like new. The good news the antenna is as flat as a slab of finely machined...
  5. O

    Any of you guys drill through Bakelite electronics cover? Advice

    So my high voltage multi-meter is in fantastic shape but takes expensive often hard to find 30V batteries. I was thinking about using a DC-DC bucking transformer to either use a conventional 9V battery or use a cheap 12V powersupply to replace the 30V battery. While I grew up with Bakelite...
  6. O

    Using a high gain transistor to drive affordable low gain bipolars?

    So I have a bunch of MRF 458's and HG 2879's that I purchased long ago for $29 each around 16 or so of each. Most of them are matched pairs or matched quads. I think in my youth I was taught that low gain bipolars where not a problem if drive with a high gain transistors. In my youth high gain...
  7. O

    Need a recommendation for recap of Sears Roadtalker!

    Ok so I do not feel comfortable working on my slantface Sears RoadTalker. It is fully functional and I am not looking for any mods just recap and alignment. My hands and soldering skills just are not up to this chassis! So is there anyone that has the skill and is taking work? I can...
  8. O

    Ok so these are regulators you young guys should know about.

    2SA1301, 1302, 1943 and the modern replacement TTA1943 the TTA1943 is by far the modern equal I think for applications most would consider a Palomar MaxMod oh and while I do not think the TIP36 is the equal of the MaxMod or the TTA1943 it is a very good part. I just think people should know...
  9. O

    This is what I use for phase rotation for my audio. Old School Broadcasting Tech.

    Don't want anyone left behind. I have used this for years. They used to be sold on ebay but not now. It is actual much cheaper now that it is not on ebay. When my old home made one I built in middle school on bread board died I found this. I do not do hifi I went the opposite route long ago. I...
  10. O

    Using solid caps in place of regular electrolytics??? In Cobra 138XLR

    So I was going through caps in my stash for my Cobra 138XLR the 25V 4.7uf caps all I have is computer grade/audio grade solid cap. They are still technically an electrolytic aluminum polymer but the electrolytic portion is a solid polymer. They are Sanyo OS-CON's. My guess they will work fine...
  11. O

    The N+1 is strong in this one!LOL

    Some days it is so hard to just look away and keep on walking past a good deal you do not actual need! I know I am in good company though on this site! Cheer's to my people! :p:D
  12. O

    Best Mic Capsule You Can Buy for CB/Amature Under $2000 Electret Condenser $50 or Less!

    Primo 6-111693 Microphone NEW W/ B&K CAL CERT!! It Bruel & Kjaer I have been using these for years. I posted about them a few years back. I think I have still have 4 new in the box. I think I paid between $24 to $36 back when I first posted about them. I found them on Ebay and they still have...
  13. O

    Prices for radio's, parts, and accessories are getting crazy hi!

    I am sure we have all seen the prices of radio's the last 2 years especially sky rocket. So I was on our favorite online auction sight just looking for general parts and accessories. I almost had a heart attack when looking at mic's I used to give $20 to $30 for NOS selling $200+. I have 16 or...
  14. O

    If you guys get a chance pick up a CObra 138XLR!!

    Like so many things in life sometimes it is better to be lucky than good! I picked this one up pre-covid for under $140 with free shipping. I got with it a CObra CA-50 Mic which I mistakenly called a Ca-55 in the box, a Micronta 1.5A power supply, 2 of the hot swap locking brackets, the radio...
  15. O

    I found an untouched like new Cobra 138XLR, Now What?

    So I tried it out tonight on a make magnet mount K40 on a stock pot with a 108" radial under said stock pot. SWR was 1.2 across all 40 channels. Wow does it have ears! I was picking up all kinds of skip. Motor Mouth Maul was giving me a solid 5-7db with swing and No Name was giving me a solid...
  16. O

    Interesting Academic Video Achieving eSSB on SDR

    I apologize if this has already been shared. I was not even sure where to put it!
  17. O

    Moto Beta hfe Letter/Color Chart by Low, Medium, High

    Back to Transistors Home Motorola© Beta Coding Motorola© uses two methods to designate d.c. current gain (Beta) of popular RF Power Transistors; "Color Dot" and "Letter Code". (Note: some transistors may not carry the Beta test code.) Letter Code Color Dot High Beta Range Letter Code...
  18. O

    What is the output power and swing of Yeti Optima MkIII in CB Mode?

    Does it put out 4 watts and not swing much more than 20 watts? I do not want to undo the continuous tuning mode and put it into CB mode just to find out that it swings widely to 40, 50, 60 watts in CB mode.
  19. O

    Yeti Optima MKIII CB Mode Output Power?

    In CB mode does it truly key 4 watts? What does it swing too? I want it to behave like a CB.
  20. O

    12V Lead Acid Batteries and how they respond to voltage and current in charging?

    So during the last great pre-pandemic bail out in the USA I was downsized from General Motors Engineering Department Service Parts NAO. In just a few short days after leaving GM I had my own shiny new parts store I ran for 2 years before taking over a region for a while. Gone was the high blood...