LF: Dummy loads at LF

[G0MRF@aol.com]

In a message dated 11/7/03 12:42:28 PM GMT Standard Time, J.R.Moritz@herts.ac.uk writes:

> The Vishay RCH50 50W film resistors sold by RS components are pretty
> good value at about 2-3 pounds each, and work OK up to HF - but
> obviously you need a hefty heatsink as well as the resistors. 
>
> Cheers, Jim Moritz
> 73 de M0BMU


Hello Jim / Gary.

As you say the wirewound types can give a very acceptable return loss at 136kHz and are much cheaper than a 'non inductive type' of similar power.

I have also recently used two of the RCH50 type resistors ( but 100 Ohms) in a wilkinson combiner at  100MHz. - they worked just fine.

73

David   G0MRF