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| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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Thread Tools |
11th Sep 2020, 8:58 pm
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#1 |
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Hexode
Join Date: Aug 2013
Location: Chichester, West Sussex, UK.
Posts: 270
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Brimistor C26 Thermistor
Hi,
I wanted to build a GEC 88-50. It used the 5U4G rectifier and so has a thermistor 3000/30 Ohms. Can anyone suggest a modern alternative or a different rectifier type, maybe indirectly heated that would fit the bill. John |
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12th Sep 2020, 3:16 pm
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#2 |
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Dekatron
Join Date: Jul 2009
Location: Sleaford, Lincs. UK.
Posts: 7,657
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Re: Brimistor C26 Thermistor
Wouldn't you be better off with SS rectification? That is unless you have the mains tfmr already. Better than valve rectification, cheaper.
If your set o valve rectification there's a CV something or other that is a 5U4G equivalent, i have one somewhere if you want it, 5U4G's have a cult status CV equivalents in different envelopes don't and are cheaper. Andy.
__________________
Curiosity hasn't killed this cat...so far. |
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12th Sep 2020, 3:22 pm
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#3 |
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Octode
Join Date: Nov 2005
Location: Surrey, UK.
Posts: 1,870
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Re: Brimistor C26 Thermistor
The thermistor will be a CZ6. This may aid your search.
As far as rectifiers go, the GZ37 is probably a fair indirectly heated replacement for the 5U4. You would need to check the detailed operating conditions and pin out. You may also need fairly deep pockets - some people out there obviously like them... Leon. |
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