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Thank You Chuck ! I'll be watching. I want to build the DC RX Manhattan style. I just ordered a few NE602 and NE612 from AliExpress. I hope they are genuine. Jim WB4ILP [email protected]> wrote:

When I buy resistors, I usually buy 100 of a value at a time.? I buy 1/8, 1/4, 1, 2, 3 ,and 5 watt values.? (Buying in big quantities reduces prices.)? Because of the quantity, small pouches are

I'll add the cap.? Don't remember at the time it being an issue.

Thread just started and already have one correct.? Schematic and BOM to be found or reconstructed later today.? Just finished a Manhattan board for the other project in progress.? Stay tuned.

Hi Chuck, I haven't been following this thread. Where do I find the schematic and BOM for the DC RX? Thanks ! Jim WB4ILP [email protected]> wrote:

The title says S9 (50uV) generator. What are the 0.5uV for? -- 73, Robert

Before 40 people jump in to correct me on absolute levels from this square wave output, I was being somewhat tongue in cheek in my reply. Even if the absolute fundamental output of this generator is

I do! Still available? If so, I’ll take it. 73 -- Matt N3AR

Chuck: This looks like a nice, clean PC board layout, and thanks for sharing your work with us on this group! Just a comment- looking at the layout, are you intentionally letting pin 1 of the NE602

I believe you can reduce the output level somewhat in the software to help with the attenuation. 73 Don ve3ids <ratzlaffsteve@...> wrote:

4.2 volts across 50 ohms is +25 dBm. 0.5 uV across 50 ohms is -113 dBm. That's an awful lot of attenuation you're going to need (25 + 113)--I doubt your extensive shielding needed between input and

I have an extra copy of EMRFD, brand new with the CD still in the unopened back pocket, because someone gifted me an old copy roughly a week after I found this one. I paid $60 plus shipping for it,

I did the math.? Fundamental amplitude for a square wave is 4*A/pi, where A is the square wave amplitude.? For A=3.3V, then fundamental is 4*3.3/pi ~= 4.2V.? Just attenuate to 0.5uV and let the

Forgot.? Here is board layout for the DC receiver.? Gerbers at 11.

1.? I decided I would go ahead and keep the 3120 pcs resistor kit.? We get about 10cm of ??? rain per year and usually in one or two storms during summer monsoon season. ??? I'd quote a line

?No problem, Michael, Be sure to read K6WHP reply about two posts back in this thread; it is very comprehensive and will lead you to info that will help you decide which/where to buy yours. The

I always wondered why my resistor end pieces were copper coated steel when I found I could pick up the pieces with a magnet……. Must save a ton of money over the years of production. Copper coated

Tim, Thanks for sharing that info. Personally, I didn't know that the NanoVNA was capable of making such measurements (at least not accurately). Maybe it's time for me to buy one of those clever

This has been a long-time question for me, particularly acute at present as I re-build my homebrew inventory. My current experiment is with 2mil 2"x3" plastic press-close bags. These can be had in

For what it's worth: can you name a Chinese manufacturer of 1/4w carbon film resistors that uses copper wire for leads instead of plated steel? One Chinese manufacturer known for producing 1/4W carbon