G4NSJ - R209/2/B Reception set valve tube communications receiver. Part 1 

My favourite bit of this video is your enthusiasm and ridiculous amount of knowledge Ray. I always enjoy your uploads. Hope you’re well

Good day Ray, great to see you again on another interesting video. These ex-military hardware had been build - literally - like a 'tank' and possibly were used inside army vehicles, or perhaps even planes? It's always a challenge to work out what's what but, the good side of it is, it keeps our older guys brain working looking for answers. Once upon a time, you could get old ex army sets (similar to this), from disposal stores but now they have become a rare find. 73 s from "down under'" VK2xxx (Arthur)

Hi Ray...those old rigs were certainly built to last! 73's...Phil

Lovely radio Ray, as you mentioned GWM's that puts a smile on my face as I type this I'm looking at an old Pye Westminster bought from them and rocked up for four meters by the late G3ZMF and still working well, I'll have to test my Cambridge next. Cheers Ray.

TNX Ray Those were the days brings me back to the old communication RX and TX vintage military good video as always 73 de G6JMX

I suggest that you could maybe, one day do a video on basic radio maintenance for the likes of me and a few others. Just a suggestion . Thank you Ray. 73 Lee.

Excellent video Ray, I'm only familiar with more modern radios but the old equipment is absolutely fascinating. Keep up the good work.

A nicely made set and a very interesting video. Looking forward to the follow up. Will be good to see how it turns out with the new valve.

Quite appropriate that a man named Ray works on ray-dios.

As always a very in depth presentation and interesting information on this old set Ray, please make another video showing your further diagnosis on the faults..73s G7WBB

Hi Ray, good to see you. Thats a nice little gift, lol. Kept the old grey matter ticking I bet. Thanks for showing it to us, I'd love to see the follow up too please.

Very interesting receiver Ray. Thank you for sharing the manual via your web page. I see R60 from AGC line feeding G1 of V1 (rf amp). I suspect that this problem is also related to the AGC as you had in the IF strip. Looks like there are THREE valves (V8, V10, V11) that all have diodes in them. You'll get this one working perfectly I'm certain. Looking forward to the follow-up video on this receiver. "Keep calm and solder on." 73 OM

A fascinating video. I am looking forward to Part 2.

Lovely old radio, lovely presentation as always!

Fantastic interesting informative video as always Ray. In Liverpool where I live there was an electronics shop called Super Radio, I was always in there as a young lad back in the late 60's early 70's, my mum and dad bought me an R107 for Christmas in 1969 but I notice at the time they had lot's of R2O9 receivers in stock for sale and they still had some for sale up until they closed down for re-development of the town center (bad move) in about 1975, I would of loved to have had one of those at the time but never did get one, keep up the good work. Regards Dave. G8HTF 😀

Just seen your latest on the R209/2/B. Yes these DK series of valava are very delicet .Glad you have it working now with the replacement for the replacement valve, Im currently working on collins R390. 73 paul.

M0MBG Nice Radio another great video. Have just fully renovated a Yaesu FT 200 Transceiver. Happy Days. We can have all the new stuff, but working on the older equipment is a challenge and satisfying when it all comes together 😁

Great video. When I was first licensed ( G8HVD ) I used one of these receivers as Tuntable IF for my home built 2M converter. The combination worked really well .A bonus having FM. Look fwd to next video, cheers.

Well done Ray getting it working....g4vvq

Hi Ray, grest to see you again. Bravo!

Looks like it was built like a tank Ray a very nice looking radio indeed with a rather unusual design. The nearest I got to working with old military radio's, was in the 70s when I was an SWL, with a CR100 and PYE 62 set on Top Band and on that not to mention band lol! Always nice to see this old gear, thanks for putting together this interesting video Ray!

Well Done!! Looking forward to part 2. 73 de WB6AGE

Very interesting receiver Ray. Good luck with it.

An amazing radio!

Lovely radio Ray!

Ya gotta love that Ray's "Beatle" hair👍

Lovely little radio.

I remember GWM had a load of B40 receivers (some still in their boxes) around the time I used to go there.

Great video Ray. I hope you get the RF amp working and do a followup video. 73 Joe

lovely set👍😀

Nice rig, Ray. Reminds me of my Angry-9. Cheers

I rember in the 1980s my uncle who worked at a navy base gave me some obsolete resistors and capacitors each individually sealed in tiny polythene bags e with Mod part number and description in the small hermata ..... water resistant bags some hand written. Those capacitors in that radio are very similar.

Nice one Ray. Not seen one of these before.73 Paul, G0MIH, HS0ZLQ.

Lovely stuff thank you.

Hello Ray a Wonderful RX I never seen R209 RX in Australia I didn’t collect Army equipment it look like excellent RX they could be about in Australia but as I said I haven’t seen one Ian Vk2IJ,

Great video.Very informative.I have an old Eddystone 680X which works but I suspect not as well as it should.Anyone in the Midlands area who is familiar with these Eddystone radios?

This was state of the art in 1951. Curious how IF AGC seems to be derived from output stage audio level instead of detected carrier level. I guess that has advantages when listening through phones. SSB sounds fine through CW mode & BFO. If there's no XTAL filter the IF will be carefully staggertuned. I wouldn't replace the selenium rectifier if it's working fine, they are much quieter than silicon too. I guess for plug in modules there are extender adaptors if want to probe while live. The RF front end, if it really is meant to amplify and not just isolate the antenna, is it because a tuned RF preselector isn't set right?

I think Medium Wave is mostly empty today. UK has been shutting down transmitters in last few years.