Ne602 - UK Vintage Radio Repair and Restoration Discussion Forum

Mike Brett · 26th Jan 2009, 7:38 pm

Hello all
I have built a mixer for a 80 meter superhet using the NE602 and it works very well. I now want to build identical mixers for the various band converters but have lost the circuit diagram. I have copied down all the components and circuit ok but for one item. It is a multiturn cermet pot that goes between the VFO input and pin 6 of the NE602. For various reasons I just can,t get at it although I can see the top and it has the markings W102 and 711co on the top of it. Has anybody got a similar component in there stock and can tell me the value of it. It is a top adjust blue colour size is 3/8". Or does anbody know what value this component should be.
Thanks Mike

JHGibson · 1st Feb 2009, 6:53 pm

Mike, I have a similar trimpot with the code W103 which has a value of 10K ohms so yours would be a 1K.
John.

26th Jan 2009, 7:38 pm	#1
Mike Brett Retired Dormant Member Join Date: Dec 2005 Location: Wisbech, Cambridgeshire, UK. Posts: 452	Ne602 Hello all I have built a mixer for a 80 meter superhet using the NE602 and it works very well. I now want to build identical mixers for the various band converters but have lost the circuit diagram. I have copied down all the components and circuit ok but for one item. It is a multiturn cermet pot that goes between the VFO input and pin 6 of the NE602. For various reasons I just can,t get at it although I can see the top and it has the markings W102 and 711co on the top of it. Has anybody got a similar component in there stock and can tell me the value of it. It is a top adjust blue colour size is 3/8". Or does anbody know what value this component should be. Thanks Mike

1st Feb 2009, 6:53 pm	#2
JHGibson Retired Dormant Member Join Date: Apr 2003 Location: Salt Spring Island, BC, Canada Posts: 368	Re: Ne602 Mike, I have a similar trimpot with the code W103 which has a value of 10K ohms so yours would be a 1K. John.