Home made feed through terminator for BNC

[Icchan]

I'd like to try and build one of these for fun and usefulness, and give a few out to our local Hacker-space as well, for use in what ever they deem necessary.
I tried to find suitable parts from eBay/the usual places, but to no avail. Could someone help me out a bit? 

[bjcuizon]

I'd like to try and build one f these for fun and usefulness, and give a few to out local Hacker-space as well for use in what ever they deem necessary.
I tried to find suitable parts from eBay/the usual places, but to no avail. Could someone help me out a bit? 

How about trying RS Components. I bought some parts there for this diy terminator. The male bnc is just a standard coax solder type bnc and the female one was a panel mount type. For the resistors, I just used a couple of 100R smd ones. Just be careful while selecting the resistor. The size gets bigger as the wattage gets higher (of course), and it may not fit inside the bnc plug assembly.

Parts List (I used):
2512 Thickfilm Chip resistor 100R; RS Stock No.739-7957
Clamp BNC straight plg-RG58A cable,50ohm; RS Stock No.546-4875
NiPt soldered std BNC bulkhead skt,50ohm; RS Stock No.546-4897

DISCLAMER: I am not affiliated with Radio Spares Components in any way. I'm just a satisfied customer.

[xzswq21]

Dear
the input impedance of my oscop is 1M || 15 pF.
can I make the input impedance of the oscop to 50 Ohm using Pomona 4119-50?
if so can I make it a feedthrough adapter like you?
if the output impedance of a signal generator is 50 Ohm is it necessary to use of such 50 Ohm feedthrough terminations?
Please reply me as fast as you can

Regards

[bjcuizon]

Dear
the input impedance of my oscop is 1M || 15 pF.
can I make the input impedance of the oscop to 50 Ohm using Pomona 4119-50?
if so can I make it a feedthrough adapter like you?
if the output impedance of a signal generator is 50 Ohm is it necessary to use of such 50 Ohm feedthrough terminations?
Please reply me as fast as you can

Regards

Yes, you need to terminate your fun gen into 50 ohms if its got a 50 ohm output impedance. You can use the termination you mentioned above or build one for cheap yourself. Just look at the other finished products above and how the other users have constructed it.

[xzswq21]

I'm gonna buy two 50 Ohm Feed through.
Do you know any products from mini-circuits company?

Thanks

[tggzzz]

Do you know any products from mini-circuits company?

Yes; there are many.

All you have to do is look at their website.

[xzswq21]

Do you know any products from mini-circuits company?

Yes; there are many.

All you have to do is look at their website.

Dear
I've looked at many products! but I didn't see any feed through. there are many attenuators and filters but I couldn't find any feed through.

Thanks

[EJP]

Jaycar part numbers for David's method:

PS0658 BNC PANEL Socket - SINGLE HOLE MOUNT
PP0650 BNC Male Line Plug

EJP

[EJP]

I've looked at many products! but I didn't see any feed through. there are many attenuators and filters but I couldn't find any feed through.

Have a look at Broadave Technologies: https://www.broadwavetechnologies.com/.

[MichMich]

Has anyone ever tried to built/modify/repair an SMA fee-thru termination? Are the resistors the same as those for the BNC ones?

Some examples of sma feed-thru terminations:

1) https://www.broadwavetechnologies.com/product/feed-thru-termination-50-ohm-dc-1-ghz-2-watts-sma/
2) https://www.pasternack.com/2-watts-sma-male-feed-thru-load-up-to-1-ghz-pe6026-p.aspx