How to build a simple RF tap/sampler for your frequency counter/scope

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How to build a simple RF tap/sampler for your frequency counter/scope.
In this video i show how to build a simple RF tap for your test equipment.

[@gtretroworld]

Excellent simple Tap and well demonstrated.👍

[@MicroChipz]

Glad you liked it!

[@chriscutting5773]

Hi there
Nice video
Want to make one of these myself
What size metal box did you use ?????
Keep up the good work

[@loopmasta5104]

Great video but what kind of toroid and winding wire did you use. Thanks a lot.

[@MicroChipz]

The wire is nothing special , and you don’t really need the toroid , you could just loosely wrap around the center core , the toroids are just standard ones , nothing special.

[@gixerags750]

Very nice video,
How come you don't sell those 2 Tone SSB boards in kit form if you don't mind me asking?
PeaceN73fromOz

[@MicroChipz]

I didnt think there would be any request for them.

[@Langdon10]

I used this design and it worked to a certain extent but my frequency meter was 24Hz out, so instead of using the torroid, I used a stiff piece of insulated wire and ran it just off the bottom of the box and now the frequency meter reads correctly. I suppose the answer is, whatever works.....

[@MicroChipz]

I dont know it made your reading off , as its just a rf pickup, thats not directly connected to the load, maybe too much signal , maybe not enough , but if your way works then its a win. My design was taken from TRX bench

[@g1fsh]

Hi what are u using for a two tone gen? Did u build it?

[@MicroChipz]

I built one a while ago , it’s on my videos a good few months ago

[@KA4UPW]

Would have liked to have see the SII and S2I the insertion loss and the dB isolaton of the tap

[@MicroChipz]

I don't think Peter at TRX bench even did that .

[@sas7388]

51 ohm resistor in series?

[@MicroChipz]

Yeh , a slight error only spotted way after making the video .

[@andytrewern4157]

Excellent tip, but my frequency counter uses a 1Mohm impedance on the input for frequencies below 30Mhz, so I came up with a version using a double throw switch, to switch between 50ohm and 1Mohm resistors feeding the output. Works a treat.😊

[@MicroChipz]

Yeh my counter has the same , never had any issues using a 50 ohm terminator, maybe for small signals it would matter .

[@TheMagnumUK]

Have you got a link where I could buy these parts from as I have already blown up one cheap Chinese signal generator or would this not work for that? And a goldstar frequency counter

[@MicroChipz]

All parts came from eBay , trxbench did a video on this

[@GusNava]

Can share the diagram

[@MicroChipz]

Look for trxbench on UA-cam , that’s the diagram I used .