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Post by plankwings on May 9, 2023 12:48:51 GMT 12
Hi, Does anyone have any photos of the TR1936 radio with the frequency crystal units under the front cover? I have a radio but no crystals and I want to find some to fit for display purposes
Wayne
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Post by emron on May 9, 2023 20:31:21 GMT 12
Welcome to the Forum.
I recommend you and other members pay a visit to Allan’s Virtual Radio Museum: radiomuseum*co*uk.
He has a gallery of images of other STC radio models TR1985 and civil STR.9-X, which I understand are similar, along with technical info and circuit diagrams that you should find useful.
Looking forward to photos of your completed display.
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Post by plankwings on May 9, 2023 22:20:15 GMT 12
Thank you. I have sent them an email asking for photos of crystals as they have a picture of a TR1936B Transceiver but nothing else
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Post by tbf2504 on May 10, 2023 9:15:23 GMT 12
You could approach the air force museum at christchurch. When we rebuilt the Avenger NZ2504 an operating TR1936 was installed. They may be able to take a photo of the crystal installation for you
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Post by denysjones on May 13, 2023 21:06:06 GMT 12
This what you're after...  no charge for service but do remember our Ferrymead GivaALittle page :-) |
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Post by davidd on May 21, 2023 9:06:39 GMT 12
Denys, is the label on the above set wrong, or is it actually a TR 1934 as indicated? Just confused!
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Post by denysjones on May 22, 2023 11:00:31 GMT 12
Hi Dave, The label is correct as per the unit and we also have a TR1936 but it lacks crystals hence I photographed the 1934. Now I'm definitely no tweet so I can only comment "as I understand it" which is that the 1934 was the initial product and the 1936 is a later modification, probably reflecting technology advances. Certainly in external appearance they would support that notion.
Sadly Googling around to try and establish what's what doesn't yield much but perhaps someone on here may be able to clarify things. cheers
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Post by davidd on May 22, 2023 17:05:18 GMT 12
Thanks for your reply Denys, it really does help, but I couldn't resist asking in the first place (Devil's advocate and all that).
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Post by emron on May 23, 2023 12:15:47 GMT 12
The main difference between the TR1934, 1935 and 1936 models is their frequency range:
TR1934; 100 to 125 MHz (Mc/s).
TR1935; 125 to 150 MHz.
TR1936; 115 to 145 MHz.
In the case of the RNZAF Sunderlands, the Nov,1951 diagram of A.P.1566E showed 1x TR1934 and 1x TR1935 fitted, but in the March,1953 supplement this had changed to 1x TR1936, which is what I gather they carried until retirement.
To Wayne: If you have located a source of crystals, I’d be interested to learn. MOTAT’s TR1936 may still have the correct combination fitted. I’ll check it tomorrow.
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zl4ai
Leading Aircraftman
Posts: 1
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Post by zl4ai on Apr 11, 2024 9:04:17 GMT 12
Welcome to the Forum. I recommend you and other members pay a visit to Allan’s Virtual Radio Museum: radiomuseum*co*uk. He has a gallery of images of other STC radio models TR1985 and civil STR.9-X, which I understand are similar, along with technical info and circuit diagrams that you should find useful. Looking forward to photos of your completed display.
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