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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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1st Jun 2020, 12:20 pm | #1 |
Octode
Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,795
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WHAT am I ??
Hyas peeps...... Now this is a VERY long shot......zillions to one... but I know that somewhere out there is the answer.
I bought a module from an Israeli supplier on Ebay..... It looks VERY interesting..I bought it for the Murata 455 Khz mechanical filter, which was cheaper than buying one without the gubbins... and I thought it looked interestin.. as Steve Davis would say. I contacted the seller to try and establish its identity and maybe a... ahem.. circuit..but unfortunately they had no idea. It is obviously VHF / UHF I think its a TX/RX..there is a block of 9 cans which suggest a 3 x helical filter and on the underside on IC is clearly marked and is a NBFM detector IC. It maybe amateur band or commercial or military..... but hopefully one of you members may know.
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Should get out more. Regards Wendy G8BZY |
1st Jun 2020, 2:22 pm | #2 |
Heptode
Join Date: Sep 2009
Location: Tonbridge, Kent, UK.
Posts: 686
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Re: WHAT am I ??
Doesn't look military to me. Messy wiring and all those commercial electrolytics.
gmb |
1st Jun 2020, 2:49 pm | #3 |
Nonode
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,015
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Re: WHAT am I ??
Looks a bit like the insides of an AOR AR3000, I don't think it is though.
Ha! Proved myself wrong. It is! Last edited by Jon_G4MDC; 1st Jun 2020 at 2:57 pm. |
1st Jun 2020, 2:50 pm | #4 |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 14,005
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Re: WHAT am I ??
Does it have any part-numbers etched on the PCB?
There was a thread here not that long back about a similar board which - from memory - turned out to be part of a cellphone data-installation. |
1st Jun 2020, 3:17 pm | #5 |
Dekatron
Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 11,567
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Re: WHAT am I ??
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1st Jun 2020, 3:20 pm | #6 |
Nonode
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,015
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Re: WHAT am I ??
It's that kind of place. I had one in the shed with the lids off!
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1st Jun 2020, 8:28 pm | #7 |
Octode
Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,795
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Re: WHAT am I ??
Brilliant Jon.... 100% is....... Tanuki... yes there was a number silk screened... but Jon has hit the nail all I need now is a schematic... I will do a search... Thanks guys
__________________
Should get out more. Regards Wendy G8BZY |
1st Jun 2020, 8:57 pm | #8 |
Octode
Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,795
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Re: WHAT am I ??
Well that was a well spent £24 inc postage....Full schematic from the tinternet...so all I have to do now is figure out some uses for the miriad of parts.. assuming they are not dead....
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Should get out more. Regards Wendy G8BZY |
1st Jun 2020, 9:19 pm | #9 |
Hexode
Join Date: Apr 2017
Location: Buderim, Queensland, Australia.
Posts: 428
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Re: WHAT am I ??
Looks very similar to my AOR2002, but I would not have guessed where the PCB was from.
How lucky was it that Jon had one with case off! Amazing. |
1st Jun 2020, 9:22 pm | #10 |
Dekatron
Join Date: Sep 2010
Location: Cheltenham, Gloucestershire, UK.
Posts: 3,077
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Re: WHAT am I ??
I had a similar result a couple of years ago. I bought the RF/IF board salvaged from a Yaesu FT736R for just a few quid as a 'buy it now' on ebay. I can't believe someone else didn't snap it up. I've used several classic RF parts from it already and there are plenty more on the board. There are a couple of PLL based synthesisers on there too. An absolute bargain!
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Regards, Jeremy G0HZU |
1st Jun 2020, 10:33 pm | #11 |
Nonode
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,015
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Re: WHAT am I ??
I wouldn't be sure that the board didn't come from some earlier AOR set.
Mine has some dealer fitted mods which added yet another 455kHz filter and an IF buffer output board. For sure it is the same basic thing, so I just got lucky! I notice I have some top side silk screen detail that one does not have between the helical filters and the edge of the PCB. Except when I look again there it is. Wrong again HI! Last edited by Jon_G4MDC; 1st Jun 2020 at 10:40 pm. |
2nd Jun 2020, 10:37 am | #12 |
Octode
Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,795
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Re: WHAT am I ??
Hi Jon and Jeremy.. Which ever...I have a very good idea what stuff is now..some of the active devices look very useful...Whoever did the CAD for that pcb... maybe a collective effort, had his / her job certainly cut out.. I wonder how many prototypes were made before acceptance..as it is there are a couple of "additions". I wonder if the seller has the PLL VFO pcb ?? might be worth an ask.
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Should get out more. Regards Wendy G8BZY |