Glad to see someone is not afraid to post a tuning video, good job! There are a lot of builders out there with video’s but none will share their tuning process, not sure what there afraid of most are so backed up with work it’s not funny, not like someone’s going to take work from them. Keep up the good work!
Ur videos are very helpful other builders say that they want to help or teach but never show the bread and butter thanks for showing the learning curve
PS love your vids...... best on the tube for seeing the real stuff.... not like the other builders that treat it all like it some secret covert thing....... thanks for all your efforts.
One thing I like about the LP-100A is if you have even a small amount of harmonics or IMD the SWR will jump around a little bit even though you know the load is good. I verified this with a spectrum analyzer. Unless the radio has its limiter disabled I guarantee if you back off the might gain a little those spikes will go away... Solder work and Builds look clean. I gave a thumbs up
Awesome video thank you, your the best, keep up the good work. I just got to watch it. It was an early Christmas present. Thank you I really enjoyed watching it. God bless Merry Christmas 73's
Question: Where do you connect that variable cap over the relay to???...... I looked hard in your video but could not make it out......Im guessing one side to the combiner output and the other to ground.... is that correct ? And is that really needed , does it make a real difference ... thanks in advance
Yes that is correct one side to the combiner the other to ground. Yes you have to have a capacitor on the input and the output. I use the variable capacitors at first to tune the amp then carefully take them out one at a time and measure the capacitance on them then replace them with a regular capacitor.
Hello, I heard in your video that you don't have a spectrum analyzer. I use a sdr it's 20 bucks and is full spectrum thru almost all bands , 100khz to 1.7ghz and is .5 Ppm accurate. Very handy and cheap to have for a frequency counter or a monitor instead of another radio or even a talk back as you will hear what another radio will hear. Thanks for all you do my friend. 73's
I'd like to more about that technique using the SDR you're talking about if don't mind sharing. I know it was 2 years ago that you posted but maybe .... Thanks in advance, Dennis
@@JimAndyAllyn Eh. Just get yourself a BIGGER splatterbox and cover 'em all up! Like the guys on channel 6. Seriously though, the guy in the video below made some outstanding low pass filters for his amp. Skip to 23;30 if you don't want to watch the whole build. There you'll see the before and after spectrum scope results and how he built them. ua-cam.com/video/7W26HpNryhY/v-deo.html Pretty effective.
Glad to see someone is not afraid to post a tuning video, good job! There are a lot of builders out there with video’s but none will share their tuning process, not sure what there afraid of most are so backed up with work it’s not funny, not like someone’s going to take work from them. Keep up the good work!
Thank You
Ur videos are very helpful other builders say that they want to help or teach but never show the bread and butter thanks for showing the learning curve
Thank You
PS love your vids...... best on the tube for seeing the real stuff.... not like the other builders that treat it all like it some secret covert thing....... thanks for all your efforts.
One thing I like about the LP-100A is if you have even a small amount of harmonics or IMD the SWR will jump around a little bit even though you know the load is good.
I verified this with a spectrum analyzer.
Unless the radio has its limiter disabled I guarantee if you back off the might gain a little those spikes will go away...
Solder work and Builds look clean. I gave a thumbs up
Thank you for the info on the LP-100A
Those tuning circuits are nice.
Awesome video thank you, your the best, keep up the good work. I just got to watch it. It was an early Christmas present. Thank you I really enjoyed watching it. God bless Merry Christmas 73's
Thank You
Man I can barely hear you talking but then the talk back blows me out my chair!😀
That's to keep you on your toes.
Good job
Thank You
Nice build brother!! Still have all my amp building stuff just dont use it much anymore.
Cool video sir
Thank you!
Question: Where do you connect that variable cap over the relay to???...... I looked hard in your video but could not make it out......Im guessing one side to the combiner output and the other to ground.... is that correct ? And is that really needed , does it make a real difference ... thanks in advance
Yes that is correct one side to the combiner the other to ground. Yes you have to have a capacitor on the input and the output. I use the variable capacitors at first to tune the amp then carefully take them out one at a time and measure the capacitance on them then replace them with a regular capacitor.
What trimmers did you use
Hey have you worked on anything like 6 pill and up that requires like an lc network? Just curious I like to trade knowledge man lol
No I haven't
If you don't mind me asking, what kind of camera are you using? That's nice video quality
it is?
How would I learn how to do this kind of stuff?
Pay attention in math and physics class. Then study electronics engineering in university.
Hello,
I heard in your video that you don't have a spectrum analyzer. I use a sdr it's 20 bucks and is full spectrum thru almost all bands , 100khz to 1.7ghz and is
.5 Ppm accurate. Very handy and cheap to have for a frequency counter or a monitor instead of another radio or even a talk back as you will hear what another radio will hear.
Thanks for all you do my friend.
73's
I will try that Thank You!
I'd like to more about that technique using the SDR you're talking about if don't mind sharing.
I know it was 2 years ago that you posted but maybe ....
Thanks in advance,
Dennis
Breath steam onto the lense and it will drop
can you send me a parts list to me if i give you my email?
I don't see any low pass filters either here or on your Facebook page. God only knows what all you are interfering with.
Pfft. Nobody cares about that.
@@seeharvester Those being interfered with do.
@@JimAndyAllyn
Eh. Just get yourself a BIGGER splatterbox and cover 'em all up!
Like the guys on channel 6.
Seriously though, the guy in the video below made some outstanding low pass filters for his amp.
Skip to 23;30 if you don't want to watch the whole build.
There you'll see the before and after spectrum scope results and how he built them.
ua-cam.com/video/7W26HpNryhY/v-deo.html
Pretty effective.
Damn it man you are hard to keep up with you are jumping around like a 🤪 crazy man lol 😆
This video was a pain to watch with the screaming into the mic.
Fan goes on fin side of heat sink not transistor side.