UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

g4wim_tim · 4th Apr 2020, 7:47 am

Hi Terry,

there's at least two mistakes in that drawing.

RL 1 should be powered from the switched tx/rx 12V line and C55 should couple to TR12.

Looking at that design makes me realise how old it is with the choice of components etc.
I still have rig and it still works. I even have the 144MHz version which was published in Wireless World in 1981/2 !

I dread to think the hours spent designing and writing the code for it - but very satisfying at the time.

73 Tim

4th Apr 2020, 7:47 am	#6
g4wim_tim Pentode Join Date: Nov 2018 Location: Freckleton, Lancashire, UK. Posts: 232	Re: 6 metre 4 pole filter Hi Terry, there's at least two mistakes in that drawing. RL 1 should be powered from the switched tx/rx 12V line and C55 should couple to TR12. Looking at that design makes me realise how old it is with the choice of components etc. I still have rig and it still works. I even have the 144MHz version which was published in Wireless World in 1981/2 ! I dread to think the hours spent designing and writing the code for it - but very satisfying at the time. 73 Tim __________________ Building and tinkering for over 50 years, from 807's to digital amateur TV.