Gwefr Heb Wifrau - Home
Source: https://www.wirelessinwales.org.uk/en
Archived: 2026-04-23 15:29
Gwefr Heb Wifrau - Home
The Welsh radio museum
Gwefr Heb Wifrau - Wireless in Wales, a charitable trust, is a small radio museum with a difference. With its emphasis on the history of broadcasting in Wales, the influence of broadcasting on our national identity and the contribution of the Welsh to the development of wireless technology it is unique. We have an interesting collection of old radio equipment and books, as well as educational and informative displays. The Museum is based around the collection of the late David Evan Jones and was opened just a few weeks after his death in 2008.
We were officially accredited by the Culture Division of the Welsh Government in April 2025.
Wireless in Wales provides a safe and secure environment for volunteers and visitors, including wheelchair access throughout the building, a hearing loop and exhibits for safe handling. Our staff are trained and experienced in looking after visitors with disabilities.
April 2026 Update
The last Coffee, Cake and Cleaning Morning for the winter.
A busy morning for Martyn and Phil repairing the valve tester …..
…..and the signal generator.
Recent donations
P
rison radio
Recently, a visitor pointed out that our "Roberts Rambler" radio, manufactured in the late 1970s, was widely used in prisons and for some years, it was the only radio allowed there! It only received Medium and Long waves; no FM broadcasts could be received. This meant that it did not have a telescopic antenna which could be used as a weapon, and it could not be re-tuned to listen to prison officers' communications, which were via VHF radio. The battery was a large, expensive PP9, so the prisoners had to use it sparingly. This changed when electricity became available for radios in the cells, and different receivers could be used.
Prison Radio, Roberts Rambler Radio
Type "R" valve
The earliest radio valve available to the public was the Osram type "R". Some years ago, the museum was fortunate to receive a rare example, made in 1918, which, although faulty, is an interesting exhibit for our visitors. Recently, another example was donated to the Museum, with a yellow colour inside the glass. When a valve is manufactured, the air is pumped out, and any remaining air is burned off, usually by using a pellet of magnesium. In this one, a pellet of phosphorus was used, hence the yellow colour. Here it is with our original "R" valve, plus another later "R" valve in the rear.
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Visitors from Bulgaria, en route to Scotland
Visiting the Museum
The Museum is open every Saturday 11.00 – 16.00.
If you wish to visit at another time which is more convenient for you, please contact
This email address is being protected from spambots. You need JavaScript enabled to view it.
to arrange an appointment. A warm welcome to all!
March 2026 Update
February 2026 Update
January 2026 Update
December 2025 Update
Page 1 of 65
Stop Press
The Museum is open every Saturday 11:00 - 16:00 until the end of September.
To visit at any other time, contact:
This email address is being protected from spambots. You need JavaScript enabled to view it.
Events
The Museum and
Cwmulus
organise monthly Welsh and English talks on Friday evenings at 7.00 pm. Simultaneous translation to English is available during the Welsh talks. To view future talks and events, please visit the
Cwmulus website
or the
Wireless in Wales facebook page.
Latest news
April 2026 Update
March 2026 Update
February 2026 Update
January 2026 Update
December 2025 Update
The Welsh radio museum
Gwefr Heb Wifrau - Wireless in Wales, a charitable trust, is a small radio museum with a difference. With its emphasis on the history of broadcasting in Wales, the influence of broadcasting on our national identity and the contribution of the Welsh to the development of wireless technology it is unique. We have an interesting collection of old radio equipment and books, as well as educational and informative displays. The Museum is based around the collection of the late David Evan Jones and was opened just a few weeks after his death in 2008.
We were officially accredited by the Culture Division of the Welsh Government in April 2025.
Wireless in Wales provides a safe and secure environment for volunteers and visitors, including wheelchair access throughout the building, a hearing loop and exhibits for safe handling. Our staff are trained and experienced in looking after visitors with disabilities.
April 2026 Update
The last Coffee, Cake and Cleaning Morning for the winter.
A busy morning for Martyn and Phil repairing the valve tester …..
…..and the signal generator.
Recent donations
P
rison radio
Recently, a visitor pointed out that our "Roberts Rambler" radio, manufactured in the late 1970s, was widely used in prisons and for some years, it was the only radio allowed there! It only received Medium and Long waves; no FM broadcasts could be received. This meant that it did not have a telescopic antenna which could be used as a weapon, and it could not be re-tuned to listen to prison officers' communications, which were via VHF radio. The battery was a large, expensive PP9, so the prisoners had to use it sparingly. This changed when electricity became available for radios in the cells, and different receivers could be used.
Prison Radio, Roberts Rambler Radio
Type "R" valve
The earliest radio valve available to the public was the Osram type "R". Some years ago, the museum was fortunate to receive a rare example, made in 1918, which, although faulty, is an interesting exhibit for our visitors. Recently, another example was donated to the Museum, with a yellow colour inside the glass. When a valve is manufactured, the air is pumped out, and any remaining air is burned off, usually by using a pellet of magnesium. In this one, a pellet of phosphorus was used, hence the yellow colour. Here it is with our original "R" valve, plus another later "R" valve in the rear.
**********************************************************************************************************************************************************
Visitors from Bulgaria, en route to Scotland
Visiting the Museum
The Museum is open every Saturday 11.00 – 16.00.
If you wish to visit at another time which is more convenient for you, please contact
This email address is being protected from spambots. You need JavaScript enabled to view it.
to arrange an appointment. A warm welcome to all!
March 2026 Update
February 2026 Update
January 2026 Update
December 2025 Update
Page 1 of 65
Stop Press
The Museum is open every Saturday 11:00 - 16:00 until the end of September.
To visit at any other time, contact:
This email address is being protected from spambots. You need JavaScript enabled to view it.
Events
The Museum and
Cwmulus
organise monthly Welsh and English talks on Friday evenings at 7.00 pm. Simultaneous translation to English is available during the Welsh talks. To view future talks and events, please visit the
Cwmulus website
or the
Wireless in Wales facebook page.
Latest news
April 2026 Update
March 2026 Update
February 2026 Update
January 2026 Update
December 2025 Update