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-   -   Thermistor 1A-1 (https://www.vintage-radio.net/forum/showthread.php?t=194998)

sonicm1etn 8th Oct 2022 9:23 pm

Thermistor 1A-1
 
Evening,
I've been hunting the web but cant seem to find any thermistor 1A-1, or what its value is.

Anyone happen to know what the actual thermistor values / type is? then i can see if I can see if I can get some from Farnell or RS etc

Many Thanks

dagskarlsen 9th Oct 2022 8:00 am

Re: Thermistor 1A-1
 
Many of us would like to get that information :-)

ms660 9th Oct 2022 12:43 pm

Re: Thermistor 1A-1
 
According to a post in the link below it's 200k (+-20%) cold and 500 Ohms at 100mW dissipation:

https://groups.google.com/g/uk.d-i-y/c/pqEXU2RQmnA

Lawrence.

pip5678 9th Oct 2022 1:50 pm

Re: Thermistor 1A-1
 
I might have a few, PM if interested, Pip

CambridgeWorks 9th Oct 2022 4:05 pm

Re: Thermistor 1A-1
 
I have bag with some in, marked with a BT part number. I remember they were very high resistance at 20C.
Will try and find them and report back.
Not sure if I offered them with my R53, RA53 etc a few months ago. But think all those threads have now gone.
Rob

pip5678 9th Oct 2022 4:49 pm

Re: Thermistor 1A-1
 
I found some of my Thermistors 1A-1 - now been sent to eBay since I went to the bother to search them out, so Rob may be a better bet!

sonicm1etn 9th Oct 2022 8:02 pm

Re: Thermistor 1A-1
 
Thank you for the replies. I'll have a look and see if anything is similar to the one mentioned can be got from electronic suppliers.
I potentially only need one, although I'm beginning to think it is a slight fault with the dial, that causes the bell to tinkle while dialling. none of my others do.

Cheers
Dan

CambridgeWorks 10th Oct 2022 5:08 pm

Re: Thermistor 1A-1
 
1 Attachment(s)
Found them, number is 1A, not 1A-1. Whether mine are first issue, non encapsulated. The 420700 is I believe the stores item number.
Pm me with your address and I can post.
Rob


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