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LED Tuning indicator for 37-6xx Series
AI2V
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Posts: 201
Threads: 26
Joined: Dec 2005
City: Morris Plains, NJ
#5

08-15-2007, 02:26 PM
The correct connection is to the point where the two 1 Meg resistors #44 and #50 come together- Pin 4 of the 6Q7. It was late last night and I traced the wrong wire. In my actual circuit I don't use the pin 4 detector but use a solid state detector in it's place- that shouldn't make any difference.

Sorry about any confusion. My 37-620 was a junker at one time and was brought up from that condition. It could be much neater, but that's not a priority.
Pete AI2V
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Messages In This Thread
LED Tuning indicator for 37-6xx Series - by AI2V - 08-14-2007, 10:12 PM
[No subject] - by Texasrocker - 08-14-2007, 10:49 PM
Shadow meter still is best - by AI2V - 08-15-2007, 09:16 AM
[No subject] - by Terry Judkins - 08-15-2007, 10:35 AM
Correction in connection - by AI2V - 08-15-2007, 02:26 PM
[No subject] - by Texasrocker - 08-15-2007, 11:22 PM



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  1. The PHILCO Phorum
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