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Vintage Radio (domestic) Domestic vintage radio (wireless) receivers only. |
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24th Oct 2021, 4:14 pm | #21 | |
Hexode
Join Date: May 2008
Location: Paris, France
Posts: 336
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Re: My FM converter for tube radios using the dial and tube amplifier
Quote:
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24th Oct 2021, 7:08 pm | #22 | |
Dekatron
Join Date: May 2010
Location: Greater Manchester, UK.
Posts: 18,713
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Re: My FM converter for tube radios using the dial and tube amplifier
Quote:
There is a description and schematic here. David's version appears not have the switching to restore normal AM operation, however I suspect that was quite difficult to implement on a given radio.
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-- Graham. G3ZVT |
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24th Oct 2021, 8:20 pm | #23 |
Triode
Join Date: Oct 2021
Location: Edmonton, Alberta, Canada.
Posts: 20
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Re: My FM converter for tube radios using the dial and tube amplifier
What is the approximate current draw of the module?
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24th Oct 2021, 9:55 pm | #24 |
Hexode
Join Date: May 2008
Location: Paris, France
Posts: 336
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Re: My FM converter for tube radios using the dial and tube amplifier
My module is indeed based on Hontele's initial concept.
What most people ignore is that I was first to suggest a module containing its own regulated power supply. My module uses my own code, completely rewritten with some bugs removed and a much better tuning which removes undesirable audible "plops" in most cases. The module draws 25mA or just under. |
25th Oct 2021, 7:43 am | #25 |
Hexode
Join Date: May 2008
Location: Paris, France
Posts: 336
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Re: My FM converter for tube radios using the dial and tube amplifier
The moderators kindly accepted that I propose the module for sale in the Parts & Set section, where you will find the link to my site:
https://www.vintage-radio.net/forum/...d.php?t=185120 Price includes free worldwide registered shipping. Thanks for your interest ! |
25th Oct 2021, 1:51 pm | #26 |
Octode
Join Date: Sep 2020
Location: Thetford, Norfolk, UK.
Posts: 1,741
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Re: My FM converter for tube radios using the dial and tube amplifier
Fab - thanks for making these available. I have just placed an order.
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27th Oct 2021, 9:24 am | #27 |
Dekatron
Join Date: Sep 2006
Location: Kilmarnock, Ayrshire, UK.
Posts: 5,422
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Re: My FM converter for tube radios using the dial and tube amplifier
Hi
I've just placed an order for one to use in a Ferguson AC DC set with an irreparable FM tuner module. I'll be adding a small mains TX for its supply. My friend who owns the radio is over the moon it will work again and look just as it should, he doesn't use AM thankfully.
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Cheers, Trevor. MM0KJJ. RSGB, GQRP, WACRAL, K&LARC. Member |
27th Oct 2021, 5:47 pm | #28 |
Triode
Join Date: Oct 2021
Location: Edmonton, Alberta, Canada.
Posts: 20
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Re: My FM converter for tube radios using the dial and tube amplifier
I've just ordered one. Now to design a shelf filter to append to the output, to make it compatible with the North American 75us time constant.
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27th Oct 2021, 8:00 pm | #29 |
Hexode
Join Date: May 2008
Location: Paris, France
Posts: 336
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Re: My FM converter for tube radios using the dial and tube amplifier
Thanks Will send tomorrow.
Updated instructions can be found here. Please pay attention to the instructions that concern AC/DC sets. Let us know how your radio sounds when you have it working ! |
27th Oct 2021, 9:43 pm | #30 | |
Heptode
Join Date: Jun 2005
Location: Sunderland, Tyne and Wear, UK.
Posts: 661
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Re: My FM converter for tube radios using the dial and tube amplifier
Quote:
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Kind regards, Bob. |
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27th Oct 2021, 9:55 pm | #31 | |
Octode
Join Date: Sep 2020
Location: Thetford, Norfolk, UK.
Posts: 1,741
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Re: My FM converter for tube radios using the dial and tube amplifier
Quote:
Last edited by Cobaltblue; 27th Oct 2021 at 10:03 pm. Reason: Fixed quote |
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27th Oct 2021, 11:40 pm | #32 |
Hexode
Join Date: Dec 2013
Location: Torrington, Devon UK.
Posts: 446
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Re: My FM converter for tube radios using the dial and tube amplifier
This sounds very interesting so I have purchased one to try out. It should make a great YouTube video. Nice work David
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28th Oct 2021, 6:48 am | #33 | |
Hexode
Join Date: May 2008
Location: Paris, France
Posts: 336
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Re: My FM converter for tube radios using the dial and tube amplifier
Quote:
All modules ordered yesterday and until noon today will ship today. Note that the tracking takes time to become effective, and all modules are housed in an antistatic bag before packing and shipping. Cheers |
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28th Oct 2021, 6:55 am | #34 |
Moderator
Join Date: Dec 2010
Location: Exeter, Devon and Poole, Dorset UK.
Posts: 6,865
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Re: My FM converter for tube radios using the dial and tube amplifier
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Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk |
30th Oct 2021, 5:38 pm | #35 |
Hexode
Join Date: May 2008
Location: Paris, France
Posts: 336
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Re: My FM converter for tube radios using the dial and tube amplifier
For those interested, I realize I forgot to pose a photo showing the size of the board... !
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FM-DW and AM Saver modules for tube radios are here ! Tune using the dial, listen using the tubes ! |
30th Oct 2021, 8:32 pm | #36 |
Heptode
Join Date: Jun 2005
Location: Sunderland, Tyne and Wear, UK.
Posts: 661
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Re: My FM converter for tube radios using the dial and tube amplifier
David spoilt for choices of stations on my Bush DAC90A I am very pleased
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Kind regards, Bob. |
31st Oct 2021, 8:02 am | #37 |
Hexode
Join Date: May 2008
Location: Paris, France
Posts: 336
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Re: My FM converter for tube radios using the dial and tube amplifier
Great
Would be so cool if you added a video there for those who might be interested. I could link to it from my page if you want.
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FM-DW and AM Saver modules for tube radios are here ! Tune using the dial, listen using the tubes ! |
31st Oct 2021, 8:17 pm | #38 |
Heptode
Join Date: Jun 2005
Location: Sunderland, Tyne and Wear, UK.
Posts: 661
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Re: My FM converter for tube radios using the dial and tube amplifier
Hi David please PM your email address and I will send you a video as the forum won't let me load a video
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Kind regards, Bob. |
2nd Nov 2021, 7:18 pm | #39 |
Heptode
Join Date: Jun 2005
Location: Sunderland, Tyne and Wear, UK.
Posts: 661
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What Members Have Bought A David Winter FM Board & What Radio Is Been Used ?
Hi as per title would like to know what is the popular radio being used for this conversion
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Kind regards, Bob. |
3rd Nov 2021, 1:19 pm | #40 |
Heptode
Join Date: Jun 2005
Location: Sunderland, Tyne and Wear, UK.
Posts: 661
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Re: What Members Have Bought A David Winter FM Board & What Radio Is Been Used ?
Moderators Please move the to a separate thread as people are not going to see the new title
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Kind regards, Bob. |