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what part number for the diodes......and you just replace with same values>>?????? rf parts have them ? I have a cobra 25 that I am going to fix up for my truck. My Pres lincoln does not need it.

thanks ...I got it going but it is not putting out like it should....on bird. It went from two watts to four watts dead key....lol. at 12.5 volts. I understand this final likes voltage.....I have taken out the slug on l 10 and turned the modulation up.....not tried it on dosey yet. spread...

dtb I am going to look into your schematic too....how much amperage will this handle. and do you just parallel the circuit to get the amprage of your transformer. I need to send you my personal ranger 2950.....it lights up but no key up and no recieve...a little noise from fm........three...

thanks.....I have been swamped with radio work...putting up a tower....etc..... thanks for all the good help. I went to the jackson hamfest and talked to a electronics teacher from alabama. He gave me the numbers of a regulator , small transistor and the power transistors for a regulated...

I got the single mosfet final that does not require replacing the pre driver. My kit was sent for a 29 cobra. So the complimintry circuit is not the right one. resistors diode and disk cap. does anyone have the instructions for the 66 as well as the tune up. thanks davis

I dont visit as much.....checked the export and tube, transistor amp sections for new post a couple of times a day. now all in cb section.....a small fraction of post compared to the old forum.....at least on these topics. the cb section is dead.....I rarely went there before....with...

ok guys.....the board number is ept 295013z. I need the proper location for the three sets of jumpers behind front panel. one place said to look from the back and take the jumper off the left set......is that right for this radio? Perhaps it is so quite because the ant. is for 11 meters and...

work of art..............bad to the bone.

I bought a nice looking radio at the hamfest in Jackson ms. sat. The problem is the radio is dead..there is some sound on fm. and the panel light is on. frequency selection works but is not working on 11 meters. there are three jumpers behind front panel and I have tried most every...

here is the main board number to my 2950 (ept295013z)

thanks for helping me. I got this radio at a hamfest and the guy said he put the jumper back to take away 11 meters. it is not a dx but it looks new. there are three sets of jumpers on the back of the front panel but none are labled jp. there is one on the left , one on the right, and one...

which jumper unlocks 11 meters or all available channels. thanks..just picked one up and anxious to give it a test drive. I have never been around one of these. thanks davis

Once again thanks for the advice......I am taking the practice test every day. I will go the the ant. section for questions there I am looking for a used base that has six meters plus hf I am excited....... davis (bettyeboop)

oh yea ...the one I am having problems with was took out of an power plate base amp.....no numbers..............too much voltage.

l=1, The trans I have used before is numbered 430-9001. I have three of these in my base amp. I would love to find a supplier of these or similar. They are very reasonable. I bought two off of ebay that were 50 amp 16 volt sec. They work great. I have had good luck using multiple trans as...

I have been ask to join the local ham club. They use six meters for the better part. I have taken the practice test. And soon will have my tech papers. Question: what radio would you look for on ebay used. I think I want high freq plus six meters what do you think of the sb 200...

no carl there is no regulator......Is there a regulator board you can build or buy? My dave made base box is not regulated and has worked fine for years. It is a simple trans. , rectifier, and cap. What about a coil of some type. I just can't give up on this. A regulated power supply cost...

I am trying to get the voltage down on an unregulated power supply.....it is frying pills because it is doing 22 volts at key up and goes down only to 16. I have tried using a five watt resistor of different values both on the ac side(pri and sec) and dc side.....could some give me some...

wanted to check back in. !. My home built power supply is putting out 12=22 volts dc. 2. I have fried four pills.... 3. the pri. stage is not needed for two pill 2879.....especially for new builders ( a straight 2,4, 6 pill can take up to twenty volts) you will burn if it has a pri...

Thanks again for your help.............I am so close to having this figured out........ What are some common reasons for high swr when amp is in the loop..I have high swr even if the amp is off. I even took all the wires of the relay except the in and out wires and still high swr. I have...