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Vintage Radio (domestic) Domestic vintage radio (wireless) receivers only. |
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22nd Jun 2021, 3:00 pm | #1 |
Pentode
Join Date: Jul 2020
Location: Borehamwood, Hertfordshire, UK.
Posts: 216
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Pantry Transmitter INFO
Am reading threads on members using their radios, but what is a pantry transmitter its details and do I need one?
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22nd Jun 2021, 3:03 pm | #2 |
Moderator
Join Date: Dec 2010
Location: Exeter, Devon and Poole, Dorset UK.
Posts: 6,865
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Re: Pantry Transmitter INFO
A pantry transmitter is a small low powered transmitter which allows other content such as obtained from FM, DAB or a recording to picked up on a AM only vintage Radio.
Do you need one? well that depends on whether or not your satisfied with the content you can receive on your set. Have a read though this thread https://www.vintage-radio.net/forum/...d.php?t=177559 Cheers Mike T
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Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk |
22nd Jun 2021, 4:09 pm | #3 |
Dekatron
Join Date: Aug 2007
Location: W.Butterwick, near Doncaster UK.
Posts: 8,932
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Re: Pantry Transmitter INFO
A pantry tx uses things like a BC107 for output etc, not 807,s!
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G8JET BVWS Archivist and Member V.M.A.R.S |
22nd Jun 2021, 5:45 pm | #4 |
Dekatron
Join Date: Oct 2003
Location: Southport Lancashire, UK.
Posts: 3,233
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Re: Pantry Transmitter INFO
A pantry transmitter transmitting from an internet radio opens up a whole world of interest.
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Paul |
22nd Jun 2021, 9:14 pm | #5 |
Guest
Posts: n/a
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Re: Pantry Transmitter INFO
And they don't need to be in the pantry.
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22nd Jun 2021, 9:57 pm | #6 |
Octode
Join Date: Sep 2020
Location: Thetford, Norfolk, UK.
Posts: 1,741
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Re: Pantry Transmitter INFO
Get one! I am very happy with MW in my area, I am lucky to have several stations including Radio Caroline.
However, I recently bought a Spitfire pantry transmitter, and have connected it up to a CD player. It just adds extra fun for me when I want to listen to my CDs instead, I can still enjoy them on my various radios. And of course as others have already said, you can choose what to connect to the transmitter. |
23rd Jun 2021, 9:29 am | #7 |
Moderator
Join Date: Jun 2003
Location: Oxford, UK
Posts: 27,943
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Re: Pantry Transmitter INFO
Just a reminder to take care when using a pantry transmitter. Some of the designs are capable of putting out a strong signal with the right aerial, and it may leak far beyond your property and attract official attention. It's also antisocial to cause interference to your neighbours.
This applies to both AM and FM transmitters. |
23rd Jun 2021, 1:17 pm | #8 |
Nonode
Join Date: Oct 2017
Location: Bristol, UK.
Posts: 2,384
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Re: Pantry Transmitter INFO
Build a Minimod - there are pages of info about this on this website and countless satisfied users. It's basic so very simple to construct, and does everything you need, albeit it usually needs to be within a metre or two of the radio to get a strong enough signal. Jerry
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24th Jun 2021, 2:43 pm | #9 |
Pentode
Join Date: Jul 2020
Location: Borehamwood, Hertfordshire, UK.
Posts: 216
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Re: Pantry Transmitter INFO
Have read all the posts so have gone mad and ordered a ready made Spitfire Pantry Transmitter hope I do not regret it ?
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24th Jun 2021, 3:09 pm | #10 |
Heptode
Join Date: May 2006
Location: Accrington, Lancashire, UK.
Posts: 978
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Re: Pantry Transmitter INFO
Well I'm tempted to get one, I have DAB and Freeview piped all around the house, and internet radio too. But one of these sounds appealing. Are they simple to build, was a TV engineer for over 50 years and built different things in my time.
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24th Jun 2021, 6:58 pm | #11 |
Dekatron
Join Date: Oct 2003
Location: Southport Lancashire, UK.
Posts: 3,233
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Re: Pantry Transmitter INFO
I built an SS Tran one (now sadly discontinued) from a kit and it was very easy. It is left switched on along with its internet radio (Logitech squeezebox) 24/7. I wouldn't want to be without either.
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Paul |
24th Jun 2021, 8:33 pm | #12 |
Octode
Join Date: Oct 2019
Location: Stockport, Greater Manchester, UK.
Posts: 1,639
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Re: Pantry Transmitter INFO
The minimod is fairly easy to build with the printed circuit board that was made available here a couple of months back.
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25th Jun 2021, 8:34 am | #13 |
Pentode
Join Date: Jul 2007
Location: Salisbury, Wiltshire, UK.
Posts: 174
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Re: Pantry Transmitter INFO
Here is one that I designed built. I can switched it between FM and medium wave. It gives very good sound
What look like a big power transistor is a 12v voltage regulator |
25th Jun 2021, 9:33 am | #14 | |
Nonode
Join Date: Jan 2004
Location: 1966-1976 Coverack in Cornwall and Helston Cornwall. 1976-present Bristol/Bath area.
Posts: 2,965
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Re: Pantry Transmitter INFO
Quote:
Would be interested to see a circuit diagram of this.
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25th Jun 2021, 9:37 am | #15 |
Octode
Join Date: Jun 2013
Location: Fleet, Hampshire, UK
Posts: 1,764
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Re: Pantry Transmitter INFO
This circuit really is brilliant, I highly recommended it, and will keep doing so
I'm surprised more folks here aren't using it, a nearly identical one was available as a kit from a shop in the Netherlands, but they won't ship here now. Anyway there is a PCB layout with the doc, and this one is slightly better than the kit: https://www.nfor.nl/radioforumservic...PLL_AM_Osc.pdf There's a write up here, if Google translate is working (the site is Dutch). Clearly a lot of work has gone into it by a fellow vintage radio enthusiast: https://translate.google.com/transla...kel-am-pll-2-1 Great sound quality, PLL stability, and enough range for your house with electrically short antennas. It performs very well at the lower end of the AM band as well, which typically doesn't happen so much with Pantry TXs. It compares very favourably with the SSTran AMT3000 for the kind of use we want it for, in both range and sound quality. The only thing its missing over the SSTran is audio processing, but the Spitfire doesn't have that either, and you can accomplish that through other means if you really want that. Adam |
28th Jun 2021, 3:44 pm | #16 |
Pentode
Join Date: Jul 2020
Location: Falkirk, Stirlingshire, UK.
Posts: 200
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Re: Pantry Transmitter INFO
Looks like there's an updated model to the Spitfire, have ordered the Hurricane Intelligent AM Medium Wave Transmitter MW.
Complete with bluetooth and remotely controllable. Should be good if it works as described. |
28th Jun 2021, 4:01 pm | #17 |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 13,998
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Re: Pantry Transmitter INFO
If you're after a FM 'pantry transmitter' it's worth looking at the things sold a few years back to let you play your phone through your car-radio/use the phone handsfree [before car-radios had Bluetooth].
I've got one here, cost me less than a tenner - coupled with a 4Gb micro-SD-card in an ancient Nokia phone (no longer used as a phone) works rather well. You just plug the transmitter's input into the phone's 3.5mm headphone-jack..... You can get a _lot_ of music into 4Gb! |
28th Jun 2021, 4:33 pm | #18 |
Guest
Posts: n/a
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Re: Pantry Transmitter INFO
I do like Adams link to a (nearly) all digital solution, I have in my mind a mini rack with four of these and four DAB receivers for my favourites. Radios 3, 4, 4 Extra, and The World Service. It would need only one low pass filter (slot nine on the rack) may be best to have only one master oscillator (slot ten), only a dream.
My FM "pantry" is a car DAB adaptor that does FM natively (for the Hacker Hunter) and its audio is fed to an SSTRAN for AM pantrying. |
28th Jun 2021, 5:26 pm | #19 | |
Moderator
Join Date: Jun 2003
Location: Oxford, UK
Posts: 27,943
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Re: Pantry Transmitter INFO
Quote:
It has a built in MP3 player and will take USB pendrives or micro SD cards. |
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28th Jun 2021, 6:09 pm | #20 |
Nonode
Join Date: Jun 2013
Location: Surbiton, SW London, UK.
Posts: 2,801
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Re: Pantry Transmitter INFO
It's worth noting that most of the radio channels on Freeview offer a superior audio quality to the DAB versions.
The FM microtransmitters are now inexpensive ; https://cpc.farnell.com/hama/0001416...%20transmitter |