Robin the Propagation Studies Group of the RSGB manatains a beacon list, but It depends what you mean by ''official'' and it is generally below 50MHz, relying on the UK Microwave group list for higher

Hi Simon, as a geriatric I find paper often is much easier to search than a web site :-)) Hope they have a suitable size Alan G3NYK

Try search ''end feed pipefittings'' (pg 473 in my paper cat) part# for 15mm 90441 ''flowmasta'' Alan G3NY

Hi Paul, I did see that on one of the tables, was it Mike's G6TRM?. Mine was part of the kit from from the cleance Bob G4BAH (SK) There was also a water cooled version. I will dig them out because the

It was nice to meet some of you again at Martlesham on Sunday. I now need to refill my stock some sizes of tin-plate boxes. I am aware of the effect that commission and double VAT can make of the cost

Aha I spy a subtle opportunity for sneaky Ad.........As there is no attenance list on the web page this year, Sam suggested we might like to declare our attendance. I will be there accompanied by a st

Save you a few grams on your luggage Kent :-)) Alan G3NYK

Hi Robin are you coming to Martlesham? I can supply a 60cm length of unused WG16 Alan G3NYK

The RAG VLF receiver uses an ICL7662 to derive a negative supply from 12v. We have built nearly 200 of these and I do not recall a single failure. From memory the 7660 is only spec'd to 10v input. It

Hi Robin, sadly that may not have much effect. Ofcom seems to be awaiting a complaint from the primary user. I'm not sure who that is but probably aeronautical ?? Like cases where radar sets have ''go

Hi Neil yes I suspect when the war started only small quantities of guide were produced in the UK. We tended to make the inside dimensions ''whole inches''. It would seem possible that when the US rec

Andy, isn't he quoting that as the narrow dimension. my bit of Old English is 1 inch by 0.5 inch (in olde english dimensions :-)) ) Indeed Wikipedia quotes OBOE as using 10cm wavelength which would su

I might be wrong but 1 x 2.5 ins does not sound like 10GHz to me......more like 4GHz I have a short length of 10GHz Old English and it just fits over WG16. Was used in the early days as a joiner when

Hi Paul I used one of these on HF about 50 years ago. The connector is often refered to as Burndept the ones I have are stamped ''F&E'' They were used on the RA17 I believe and on directional couplers

Hi Clive my experience with company purchases is similar, dispatch without incurring German VAT, delivery via ParclForce after payment of UK Vat (not needed to be estimated it is 20% 0f the invoice to

Hi Ian yes from memory I believe the 741in unconditonally stable but the 748 has a higher gain-bandwidth which is better in the front end signal path. I built a Texan in about 1975 and unusually could

Hi Robin I tried but that message disappeared into the byte bucket......interesting yours got through. I am having odd problems with either BT or groups.io (unlikely) For instance BT is dumping digest

Hi All, It looks as though my previous posting (22:00 on 12th) has been treated as spam by groups.io because it has not appeared in the message list after 12hours ......probably because of the clickab

Hi all, sorry to those who may have tried to access the box list on my web site. I am in the process of changing domains and will advise here when it is active again. Keep on building :-)) Alan G3NYK

Hi Simon I am sorry not to make SMA plugs available, but with the options of solder or crimp and the dozen or more different coax cables required it would not be worthwhile. Personally I have a number