Military Valve Amplifier Strip - mystery continued - UK Vintage Radio Repair and Restoration Discussion Forum

CarrierPigeon · 5th Apr 2022, 9:15 am

Hello,

I'm hoping for some new insight into an old thread...
Back in March last year SteveCG posted an unidentified military amplifier strip.
I had seen a couple of these before as well, but had no further information as to where they came from.
Maybe there are some new eyes or new ideas?

SteveCG's original photos are attached.

Has anyone heard from SteveCG? He hasn't posted since August.
Another friend on the board hasn't heard from him since a PM last year either.

The original thread is here...
https://www.vintage-radio.net/forum/...d.php?t=177843

Thanks for any help!

Chris

AdrianH · 5th Apr 2022, 5:27 pm

I believe it is the 45 Mhz strip out of a TR8193 or Rebecca mk8 beacon receiver from WWII.

I have what I think is the same unit and the front end that goes with it tuning from 200 to 235 MHz.

I had a complete receiver unit but all the small intricate transformers had gone open circuit with age and corrosion of the chassis.

I will take some pictures of what I have to hand.

Adrian

AdrianH · 5th Apr 2022, 5:35 pm

Click image for larger version

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Click image for larger version

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Look very similar.

Adrian

AdrianH · 5th Apr 2022, 6:03 pm

Just going off the wording in this article
https://www.vintageavionics.nl › index_bestanden › Diagrams › TR8193 circuit.pdf

Probably not would be my guess, but think that the Rebecca mk1 etc probably started during the war and was used to find the Eureka beacons and other such as used.

Adrian

5th Apr 2022, 9:15 am	#1
CarrierPigeon Diode Join Date: Apr 2021 Location: Beverly Hills, California, USA. Posts: 1	Military Valve Amplifier Strip - mystery continued Hello, I'm hoping for some new insight into an old thread... Back in March last year SteveCG posted an unidentified military amplifier strip. I had seen a couple of these before as well, but had no further information as to where they came from. Maybe there are some new eyes or new ideas? SteveCG's original photos are attached. Has anyone heard from SteveCG? He hasn't posted since August. Another friend on the board hasn't heard from him since a PM last year either. The original thread is here... https://www.vintage-radio.net/forum/...d.php?t=177843 Thanks for any help! Chris Attached Thumbnails

5th Apr 2022, 5:27 pm	#2
AdrianH Octode Join Date: Mar 2020 Location: Blackburn with Darwen, Lancashire, UK. Posts: 1,573	Re: Military Valve Amplifier Strip - mystery continued I believe it is the 45 Mhz strip out of a TR8193 or Rebecca mk8 beacon receiver from WWII. I have what I think is the same unit and the front end that goes with it tuning from 200 to 235 MHz. I had a complete receiver unit but all the small intricate transformers had gone open circuit with age and corrosion of the chassis. I will take some pictures of what I have to hand. Adrian __________________ Asking questions and learning, or trying to! Youtube EF91Valve

5th Apr 2022, 5:35 pm	#3
AdrianH Octode Join Date: Mar 2020 Location: Blackburn with Darwen, Lancashire, UK. Posts: 1,573	Re: Military Valve Amplifier Strip - mystery continued Look very similar. Adrian __________________ Asking questions and learning, or trying to! Youtube EF91Valve

5th Apr 2022, 6:03 pm	#4
AdrianH Octode Join Date: Mar 2020 Location: Blackburn with Darwen, Lancashire, UK. Posts: 1,573	Re: Military Valve Amplifier Strip - mystery continued Just going off the wording in this article https://www.vintageavionics.nl › index_bestanden › Diagrams › TR8193 circuit.pdf Probably not would be my guess, but think that the Rebecca mk1 etc probably started during the war and was used to find the Eureka beacons and other such as used. Adrian __________________ Asking questions and learning, or trying to! Youtube EF91Valve