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I saw Pez mention this but i'll go just a bit further. it is SUPER important that the tone coming out of your 8656 sig gen and the frequency that the notch filter in the sinadder is tuned to be matched. otherwise the sinadder cannot really do it's job and your results will suffer. so, you...

thanks Eldorado i will reach out! LC

Ok thank you i think i see what you mean now. I would probably word it a bit differently, but the effect on performance is the same. This is how i would explain it to that customer. Your 2547 was showing 19 watts PEP on the wattmeter, but wattmeters are dumb and dont care what frequency those...

boy Hawkeye you've got me here. I can't figure out what you're trying to say. especially the part about the AC outlet. is there any way you can word that differently to help me understand? you do understand that amps are pulled by the load and not pushed by the supply right? and the "what...

Compare the two schematics and you'll find your answer. don't go too low with the new value though, it can be hard on the power supply when the clarifier is cranked all the way one way. the biggest limitation to swing range you'll find is the crystal itself. the load capacitance has a lot to...

LC

here ya go: https://stores.goldeneagleradios.com/galaxy-potentiometer-20kb-1kb-clarifier-dx77/ or if that doesn't fit, then maybe this one: https://stores.goldeneagleradios.com/galaxy-potentiometer-20kb-1kb-clarifier-dx94-98/ or maybe even this one...

well shoot! I was kind of getting excited about this one as it looks like it might be sold here in the US as a 10 meter rig, meaning that it's probably convertable. however, it looks from the specs that its not a single DIN size chassis. that takes it out of the running for me. LC

Hi all, I am on the hunt for what seems to be a rare item. The chrome bezel for an S9 radio. the one with the large round meter. I believe that the S6 bezel would work as well. if anyone has one, or knows who might, please let me know. Also please message me with your price if you don't...

cool! i used to have the VSB-1 by selman enterprises (the secret CB people) but i never hooked it up to a radio. how about some pics of the insides of this beast! Who knows maybe i will be one of those weak contacts you can now make! LC (410)

try changing VC1 itself. LC

I like this mod since it allows you to set the range of the external pot using the internal controls. this allows you to run a 1-4 watt range or maybe a 3 -8 watt range depending on your needs. I will say however that i stopped offering variable power as an option years ago unless the customer...

they would actually perform better on a fiberglass mast. metal masts create a "leaky capacitor" to ground and can mess with radiation patterns. strength could be an issue. with the antron 99 in particular, you would want to make sure the first 9 feet of coax coming down from the feedpoint...

Shadetree, this is a perfect excuse to buy a nanoVNA to play with! LC

i worked on these before. the fets are factory as are the ceramic insulators. trying to convert it to bipolar operation could be a pretty daunting task. remember that not all details are shown on the schematics. for example, the jumpers aren't shown. also there are ferrite beads that need to...

im confused as to how the pattern looks clean on the scope with the swing mod installed? LC

the reason no one has just said "adjust x and y" is because we don't know what the actual issue is and don't want to make the problem worse or mess up an expensive radio that would then need to be sent out for an alignment. however, it is your radio and if you feel like you know what you are...

so you don't notice this problem on AM? when strong signals do come in on SSB how do they sound? like, is everyone's voice kind of tinny? bassy? there is a chance that the IF section is slightly off if this is the case. Tuning IF offsets for frequency alone can cause problems because that...

Im going to get right to work on a CB microphone that looks like a hamburger. After that i'll make the next model that looks like a cup of coffee. LC

I think the HP5381a is a great starter frequency counter for CB radio work. It will let you set things down to 1hz accuracy with a 1 second gate time which is very useful when aligning radios. yes they are very old so they should have their electrolytic caps (three of them i think) replaced in...