UK Vintage Radio Repair and Restoration Discussion Forum - Can anyone Identify this Video Difference Amp ?

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- - Can anyone Identify this Video Difference Amp ? (https://www.vintage-radio.net/forum/showthread.php?t=135035)

snufkin

21st Mar 2017 1:57 pm

Can anyone Identify this Video Difference Amp ?

4 Attachment(s)

I know the bvwm has a row of similar units?

(see attached images)

it's a white face rack mount maybe BBC?

Thanks

CK

AC/HL

21st Mar 2017 4:39 pm

Re: Can anyone Identify this Video Difference Amp ?

Yes, it is BBC. I have an MN6/502 oscilloscope with a general purpose amplifier module AM5/518/105. Many years ago I wrote to the BBC and they sent me the circuit diagram of the scope, but not the plugins.

Herald1360

22nd Mar 2017 12:41 am

Re: Can anyone Identify this Video Difference Amp ?

Spot the 75ohm BNC connectors. Attention to detail.......

Malcolm G6ANZ

23rd Mar 2017 10:31 am

Re: Can anyone Identify this Video Difference Amp ?

BBC white module kit is usually very good. I've got two PAL colour coders from the same era and both are still working, albiet not perfectly but the are producing encoded colour

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