Due to technical reasons, I could not pump up my mast tonight. I worked one station not to far from me (IO91) and other than that nothing. Called CQ, still nothing. I did hear someone working the PA s

I used to go out with my club to operate QRP/p, but this year despite me arranging two private sites, no interest was shown. I went on the air late Saturday night and only worked 3 stations. Sunday mo

Thanks for flagging this up! I still hold a defunct University Radio Society Callsign (G0KCL) which I would love to pass on to someone else. Julian G4ZOD

Over twenty years ago I built the above Transverter and it was tested at Martlesham Round Table. It has a Small dish on the output with a penny feed. (It has been in dry storage with my 13 CMs Transve

I have a 40 Foot Clarke Pneumatic mast. I have stacked on a 12 Foot Hang Glider main spar:- A 5 element Met Yagi for 2M A 14 Element MET Yagi for 70 CMs A 14 over 14 Yagi for 23 Cms It is not guyed, b

A number of years ago we used water cooled Argon Ion lasers which put out about 3/4 Watts , they ran on three phase (30 Amps per phase ) and we dumped many kilowatts of heat via water cooling .We must

There a number of Myford Lathes out on the market, ( but they can be overpriced or badly worn.) They are now a number of good ones coming up as the old generation of Model Engineers dies off and their

Older British machines can be fine, but it they come as basic machines all the "extras" can be very expensive. I took the route of purchasing a new Chinese Lathe and Mill. All the extras are included

Can one assume that the filters described in the various RSGB manuals actually work? I am reluctant to carve up a block of aluminium on my Mill to find that it was for a theoretical design. There is s

My Chinese Mill and Lathe were purchased with Metric settings. However on occasions I am still forced to work in imperial units. If you can digitise the machine(s), it will make life easier. Cheap dig

I have both a Mill and Lathe made by the usual Chinese Company. As long as you allow for "non tool room quality" and do some fine tuning of the machines, they can do a reasonable job. They will never

I have now taken out the potentiometer and it would appear to be 500 Ohms as has been pointed out. The pot. has three wire connections. The reading from it are erratic! I do have full mechanical facil

I have acquired a second hand Daiwa 7500 A rotator. ( The one on my mast is dying after nearly 30+ years of use) The replacement rotator seems to have an intermittent rotary potentiometer in the head

Many thanks to those who responded. They have confirmed what I suspected. I have no way of testing the device, so it will be put up for sale sold as seen. (however I suspect it had little use and is g

I know it is really heresy to mention HF on this microwave group, but with the range of experiance on this group someone may have the answer I require. I have the sad task of clearing a SK shack and w

Be careful of some lightweight masts. My brother gave me wind surfing masts to donate to club members. The trouble was that some were made from fibre glass and as they age can shed fibres. ( This prob

My first mast ( which was an Aluminium scaffold pole + 12 ft hang glider spar) was fixed to a single brick garage wall. However I put reinforcing plates on both sides of wall where the fixing bolts we

I have a ex WD Scam mast. It is a "temporary structure" (which has been up for 25+++ years.) It is supported by four legs with climbing steps on them. Two fit persons can erect the mast, it is easier

My son being an engineer would have sailed through the RAE. However he was not prepared to mess around with three separate exams.( He was using two way communications in St John Ambulance and was alre