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First of all The Jerk you did not say which modification you were intending to do on your first reply; and I was only giving a very good option to the 2 final mod that would actually give you more power and not suffer on SSB. Moleculo, I had heard that the RFX could make the SSB suffer because...

Just got the mic in and it is very good condition and is very much vintage. It has a tension PTT switch with 4 long metal bands that disconnect and reconnect as you pust the PTT switch. The element is an Astatic 3-62 ceramic element that is heat and moisture resistant it says. It is a 4 wire...

The Jerk they have already come out with a SSB friendly unit from RFX and Cbrepairman has them and charges several more dollars for the complete install. I am sure you could probably check around and order one from Copper electronics, Sparky's, or such. Then you have all the power plus the SSB...

I just got a really nice vintage Turner microphone that is all stainless steel on the outside and has model # SR90D. I think I have seen others refer to it as the 90 D or just like a Collins microphone. Any help would be apprecitated; I plan to make it usable in a 4 pin configuration for my...

You are correct in that the 939 is an am radio only and that is the one you are talking about; but THE_JERK was talking about the 959 and is a much better radio than the 939 and for the price I gave you is well worth the price.

The Jerk you are correct in that it may suffer on SSB and Powerband is coming out with one that is SSB compatible, or they have already done so. Check around with Al at Sparkys about this. As far as it being worth it, it is a matter of opinion and price. If you buy a refurbished 959 from Sparky...

HIGHLANDER_821 is pretty close to being dead on, but those number on the high side are a little high. Even with wattage for numbers they will not do you any good unless you use the modulation numbers and set it within a few % points of those modulation numbers, otherwise it will sound like crap...

9C1DRIVER I have done several of the newer mosfet radios and have not seen 30-35w peak; but that was without clipping any limiters or modifying the radio beyond a peak and tune and most importantly I ran the radio right at 13.79-80v on my Astron vs-35m during the peak and tune. This is what I...

Sonwatcher this is the wrong model; the one I have is made for the US and the 40th anniversary and is a SMT board version. Rick Jackson of the UK listed the information for cbtricks.com and if you look at the exploded view of the chasis you will see it is not SMT. Thanks anyway.

If you have converted the radio and you have meters to see how the modulation and power is on low and high settings and they are within parameters then leave this one alone. Believe me when I messed with mine it just got worse until a friend of mine had purchased it and it worked extrememly well...

I have installed this in a cobra 29 chrome special edition and afterwards did some research on it. I have heard of a lot of these being DOA and you wont know it until you have tried to install and fire it up; and the company that manufactures it is hard pressed to stand behind it because we are...

If you bought it brand new in the box did you use a credit card, or cash. If credit you could trace it through your credit company. Call Cobra up and see what exactly is the warranty period and tell them your serial number and then they can see when it was manufactured if it is not printed on...

The mod you performed is quite easy; as long as you didn't burn the traces around it. The frequency range it should cover after the mod starts on band A at 26.065 mhz up to band D at 29.695 mhz. To listen to regular cb band you would need to be on channel B and AM on the band selector as well as...

Switch kit I agree the RK56 is the one to beat throughout the years and it is still a very good microphone. The only thing I can say that in a mobile installation from my own experience with many, many radios on road is that most of the guys thought the RK56 choked the modulation a little. It...

Rob KI6USW I used the same value as the stock capacitor that were my two other friends RK56. As far as the skythumper being louder you are most definitely correct. I have used it on many different radios and makes a big difference. As far as the RK56 being clearer than the Skythumper it is...

I replaced the tantalum capacitor with a ceramic one of similiar value and it has helped out with the muffled sound. It still has a little bit of muffled sound as compared with my Skythumper ST-65. Thanks for the help mackmobile43.

I have a new RK56 that my buddies said sounds like it is muffled. So I cracked it open and looked at it as well as 2 of my buddies that sound great and the difference is that thier RK56 had a totally different capacitor. It was glossy and looked like a ceramic capacitor with the writings cm .1M...

bfflorida I would start with simple steps. One of them you have already done which is to make sure it is not the mic. Two check the pins on the radio where you plug the mic into and see if any are broken or debris is shorting something out. Three check the wiring inside the radio at the mic...

I am wondering why some of the LED have actually lasted; I have a few friends that I have installed in mainly Ranger products and they have yet to burn out. Thanks for the replies. I didn't think I was far off.

I had purchased some LED for replacements for meter lights. I purchased ready to go 12v application meter light replacements and they have been burning out on me. So I took them apart and found they have been putting a 180 series resistor inline to bring it down so it will work. Well doing the...