Bulletin ….Work carries on in the new factory but we always need more volunteers – especially wiremen and visitor guides. If you are based in the West Midlands or can travel easily to Stoke Prior, please consider volunteering – its good fun, always challenging, and then there’s lunch.
brimar grid winding process libraryThe UK was the centre of thermionic valve (tubes for our U.S buddies) production for many years and we produced the best and most consistent products which are still highly sought after even now – nearly 50 years after production stopped. Our dream is to restart manufacturing of valves in the UK using existing knowledge and equipment but bringing it into the 21st century where not only consistency and performance are drivers but efficiency and the environment.The Great British Valve Project is about creating a valve manufacturing base in the UK. There have been many twists and turns since we started this project back in 2015 but our biggest breakthroughs have been finding a backer and the final acquisition of equipment which will allow us to start small scale manufacturing of a limited range of valves in the UK.


Now that we have presses, grid winders, out-gass, bulb making, etc. machines located in our West Midlands base we need to get on with their refurbishment and building all the ancillary facilities, equipment, QA procedures etc. that will bring our manufacturing into the 21st century.  We now need to assemble a small army of volunteers  with experience in project management, fund raising, finance, negotiation, law, production engineers, etc.

You can email the ‘Great British Valve Project’ team using the form below if you want to volunteer, ask for more information or are able to help us revive valve/tube manufacture in its spiritual home – the UK. You can also sign up to our newsletter to get regular updates.

Stop Press …. (@brimarbob)

Oliver has been busy moving parts from Grid Winder 3 which is going to storage and fitting them to Oskar Jr to make it as complete as possible. Chris has ordered the ball screws so the 2nd phase of cnc automation can be worked on - pulling the grid backbone wires thru the winder

Chris has been busy working out a rough layout for the Grid Winder backbone pulling system while he has been laid up with Covid - get well soon Chris!

Perfecting the art of sealing the latest batch of R-Type valves on the vertical lathe. The bulb is held in a clamp at the top and the pinch sits on a specially made carbon jig. As the edge is heated, the seal is formed and the excess glass falls away. Well done team Brimar!

Now the refinement begins starting with pinches. We stopped using pinch tooling and used hand clamps but they are hit & miss. Now it's time to fix the tool to allow the glass to spread and an opportunity to play with the cnc mill and put our name on it!

What a fantastic day at #RetroTech with our friends @BVWSOfficial made perfect with the big reveal - we have succesfully made our first R-Type valves. A big thank you to all staff and volunteers. Brimar Thermionic Products Ltd. are now officially valve manufacturers! 👍

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brimar grid winding process libraryThe UK was the centre of thermionic valve (tubes for our U.S buddies) production for many years and we produced the best and most consistent products which are still highly sought after even now – nearly 50 years after production stopped. Our dream is to restart manufacturing of valves in the UK using existing knowledge and equipment but bringing it into the 21st century where not only consistency and performance are drivers but efficiency and the environment.The Great British Valve Project is about creating a valve manufacturing base in the UK. There have been many twists and turns since we started this project back in 2015 but our biggest break throughs have been finding a backer and the final acquisition of equipment which will allow us to start small scale manufacturing of a limited range of valves in the UK.


Now that we have presses, grid winders, out-gass, bulb making, etc. machines located in our West Midlands base we need to get on with their refurbishment and building all the ancillary facilities, equipment, QA procedures etc. that will bring our manufacturing into the 21st century. We now need to assemble a small army of volunteers with experience in project management, fund raising, finance, negotiation, law, production engineers, etc.

You can email the ‘Great British Valve Project’ team using the form below if you want to volunteer, ask for more information or are able to help us revive valve/tube manufacture in its spiritual home – the UK. You can also sign up to our newsletter to get regular updates.

Stop Press …. (@brimarbob)

Oliver has been busy moving parts from Grid Winder 3 which is going to storage and fitting them to Oskar Jr to make it as complete as possible. Chris has ordered the ball screws so the 2nd phase of cnc automation can be worked on - pulling the grid backbone wires thru the winder

Chris has been busy working out a rough layout for the Grid Winder backbone pulling system while he has been laid up with Covid - get well soon Chris!

Perfecting the art of sealing the latest batch of R-Type valves on the vertical lathe. The bulb is held in a clamp at the top and the pinch sits on a specially made carbon jig. As the edge is heated, the seal is formed and the excess glass falls away. Well done team Brimar!

Now the refinement begins starting with pinches. We stopped using pinch tooling and used hand clamps but they are hit & miss. Now it's time to fix the tool to allow the glass to spread and an opportunity to play with the cnc mill and put our name on it!

What a fantastic day at #RetroTech with our friends @BVWSOfficial made perfect with the big reveal - we have succesfully made our first R-Type valves. A big thank you to all staff and volunteers. Brimar Thermionic Products Ltd. are now officially valve manufacturers! 👍

Load More...