My goodness Paul ... non electric soldering irons , that brought back some memories .... my dead Dad had one , which I used , heated up over a coal and wood fire !!! ... then run out to the shed , cle

and some freezer spray , then a heated source ............. Wrong capacitors in loop ???

Regarding the Octagon Pll . I removed the 27 Mhz crystal , and 2x 30pF caps , and added a tcxo , and a 3V3 IC surface mount UC regulator ( piggybacks on the existing IC regulater ) along with some 2.2

Sounds like you need a big Zener across the output of the solar's ......

get a QRPLabs dds sig gen set it to 3456 Mhz , and there's loads of third harmonic .

Malcom ...... check out Scatterpoint , where you can look at every back issue ..... loads of usefull and parctical information .........

seems as if the octagon pll pcb needs relocating on to a piece of waveguide .... More work ....

You've been Trump'ed .......... no purchase's from the USA for me ..........

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I Suggest the gain will reduce as the unit is using FRG4 fibreglass pcb If you got some devices on a better quality Duroide board , you would get a nmuch better response ......

I got , from Wickes , I think , a short tube of bathroom silicon sealant . Remove the end cap ,then apply little sideways pressure at 45 degrees , and it releases the slicon sealant in a nicely contro

Contact RGD Tools They will have the answer . 01422 884605 Have a great year Richard .

Tracytools are bloody good , and affordable .. good quality too ........ Their M1.6 and smaller taps I've used for years .............

For anyone considering setting up an RF test lab , this Hot-Cold Plate is available . It's an 11" square hot/cold plate for CO2 and fully approved CE certification. Make is 'Fasjet' by Statcon . Preci

We used them for testing of FET Low Noise and other stuff ... anything RF , amps , solid state switches , attenuators ect... Clamp them down on the flat plate , or with a weight ....... connect to a C

Richard ....I would advise requesting that information from John , as the email . The Heater is a coiled element passing through a milled slot in the Aluminium Block , and John would know what tempera

I have used many J310 from Chineer , and have had no problem with them ........ There are differences in packages , ie; thin or thick leads , so best to get a small amount , from different source's ,

Sounds to me , that you need the vertical stacked half wave coaxial ........it can n be as tall as you wish , easy to make , and with plenty of gain ...

I have made a couple of these .... the only problem , is that the indiviual half waves of coax need some support or the tend to collapse on themselves at the joining points ..... So so VERY expensive

Ah Ha I did'nt read the email correct;y ......... Retirement is good !