Ferranti transformers

arnoldc · 18th August 2007, 04:01 PM

Guys,

I have a pair of these really small transformers (round can) with the following specs-

Ferranti CC-26
S.C. 2Z9631.269
Family 11
Pri. Z 100 ohms
50mA DC.
Sec Z 40K. Ohms
250-500 CPS
Level 200 MW
Test 500 V. RMS.
Grade 2 Class A

I tried using it as MC step up and while it sounds decent from the mids up, it does not have bass. Due to the 250 Hz lower limit, I supposed.

What were these transformers used for?

Geek · 18th August 2007, 09:22 PM

Communications microphone to grid maybe?

arnoldc · 19th August 2007, 09:59 AM

Hi Geek, thanks for your thoughts.

7N7 · 19th August 2007, 05:39 PM

Ferranti was a great company, tragically brought down by some crooked bloke in the U.S.

You can read all about it here

7N7

arnoldc · 20th August 2007, 07:13 AM

Hi 7N7, the link was much appreciated. I'd like to learn what happened to them.

7N7 · 20th August 2007, 07:45 AM

Quote:

Originally posted by arnoldc
Hi 7N7, the link was much appreciated. I'd like to learn what happened to them.

You are welcome. As an aside, I visited Ferranti more than once back in the 1970s - twice I think near Manchester and once in Scotland - I had a governement job in those days - something to do with valves!

7N7

18th August 2007, 04:01 PM	#1
arnoldc diyAudio Member Join Date: Apr 2003 Location: Makati	Ferranti transformers Guys, I have a pair of these really small transformers (round can) with the following specs- Ferranti CC-26 S.C. 2Z9631.269 Family 11 Pri. Z 100 ohms 50mA DC. Sec Z 40K. Ohms 250-500 CPS Level 200 MW Test 500 V. RMS. Grade 2 Class A I tried using it as MC step up and while it sounds decent from the mids up, it does not have bass. Due to the 250 Hz lower limit, I supposed. What were these transformers used for?

19th August 2007, 05:39 PM	#4
7N7 diyAudio Member Join Date: Jan 2003 Location: England	Slightly Off-topic Ferranti was a great company, tragically brought down by some crooked bloke in the U.S. You can read all about it here 7N7 __________________ Plug them in and light them up

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18th August 2007, 09:22 PM	#2
Geek diyAudio Member Join Date: Sep 2004	Communications microphone to grid maybe?

19th August 2007, 09:59 AM	#3
arnoldc diyAudio Member Join Date: Apr 2003 Location: Makati	Hi Geek, thanks for your thoughts.

20th August 2007, 07:13 AM	#5
arnoldc diyAudio Member Join Date: Apr 2003 Location: Makati	Hi 7N7, the link was much appreciated. I'd like to learn what happened to them.

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