Hi all,
I have got a pair of 4CX1000a tubes in boxes that have been in the loft for 20 years.
I am looking at selling one but would like to test first. Is there a simple test I can do on them ?
they are 4cx1000a English Electric Valve Co LTD (October 1970)
Would also like to know value?
Paul G0HWC
Check out my website www.g0hwc.com / www.sstv.org.uk