RCA 1861, NTSC and a DEC VR-201

From: Philip.Belben_at_powertech.co.uk <(Philip.Belben_at_powertech.co.uk)>
Date: Thu Sep 30 05:04:25 1999

>> Pin 12 appears to be video. It goes off under the connector, through a 0
> Ohm
>> jumper, across a Yellow-Purple-Gold-Gold resistor, then tied to ground
> via
>> a Grey-Red-Black-Gold (might be Sky Blue-Red-Black-Gold) and then through
> one
>> of the rear pots. I would spec the values, but I'm not used to such odd
> colors
>> in the significant digits of resistors (just as tolerance bands). Would
> a
>> EE care to translate these? Might that second one be 92 Ohms? Could the
>> first one be 7.5 Ohms?
>
> Yellow-Purple-Gold-Gold = 4.7 ohms 5% tolerance
> Grey-Red-Black-Gold = 82 ohms 5% tolerance
> Blue-Red-Black-Gold = 62 ohms 5% tolerance
>
> The last is rather unlikely, since it's not an E12 or even E24 preferred
> value.

Are you sure, Pete? 62 ohms has always been an E24 preferred value in every
list I've seen. I've even seen a 62 ohm resistor with a silver (10%) tolerance
band...

Philip.





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Received on Thu Sep 30 1999 - 05:04:25 BST

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