Whilst there was no formal talk this evening, we had a wide array of interesting items brought in for people to look at and play with.
John Denby, G3TSA brought in a number of items, the first of which was a home made power meter that he made many years ago, but is still fully operational
Capable of measuring from milliwatts directly up to hundreds of watts using the directional coupler:
Next up from John were some ex-equipment 50v DC 750 w power supplies made by lucent technologies. There are ideal for the latest generation of LDMOS RF amplifiers using devices such as the BLF 278, or with a couple of supplies in parallel the larger device like the BLF578XR or MRF6PV1K25 which are capable of RF outputs into the kilowatts!
John also brought a rather beautifully made electronic barometer which is probably ex military, and still fully working
Michael, G1XCC brought a long a high quality optical gun sight, good for ranging items over a kilometer away. A number of members took a look, and conversation turned to the possibility of using it for sighting a light modulation project between local hill tops.
As always the conversation were many and varied. Please come along to the next meeting, which will be on thursday March 19th.