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Radio My latest project

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Michael Dranfield
(@michael-dranfield)
Posts: 364
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Topic starter
 

My latest project for those who don't do YouTube.

IMG 20250105 213002
IMG 20250105 212943
IMG 20250104 153451
IMG 20250104 153435

 

 
Posted : 05/01/2025 9:38 pm
Cathovisor
(@cathovisor)
Posts: 6729
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Many, many years ago the late Chas Miller used to run set construction competitions - at one time I used to judge those. I'm positive that was one of the designs he used for a competition.

 
Posted : 05/01/2025 10:29 pm
Boater Sam
(@boater-sam)
Posts: 520
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Ah, selenium rectifiers, delightful. Now its a 1N4006, no smell.  Be a good project to use up a few EF80s.

Boater Sam

 
Posted : 06/01/2025 6:04 am
irob2345
(@irob2345)
Posts: 733
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I recall seeing a post on the US site that asked how to test a selenium rectifier.

Here was the response:

1. Remove it from the set.

2. Hold it over an empty trash bucket.

3. Drop it.

4. If it makes a clunk, it is bad. Leave it there.

 
Posted : 07/01/2025 9:46 am
Michael Dranfield
(@michael-dranfield)
Posts: 364
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Mine was brand new old stock, I have a few of them so it should be OK for years to come. 

 
Posted : 07/01/2025 12:14 pm
irob2345
(@irob2345)
Posts: 733
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I wouldn't be so sure, they are just like NOS paper caps.

 
Posted : 09/01/2025 8:05 am
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