Re: Uncooperative 7834

Majdi S. Abbas

On Fri, Mar 01, 2019 at 06:11:50PM -0000, David C. Partridge wrote:
Specifed Measured
+130V 6.6k 6.8k
+50V 1.8k 1.75k
+15V 70R 52R
+5V 9R 8.4R
-15V 100R 60R
The -15V worries me a bit -- I've seen a shorted tantalum
around 40 ohms on this rail.

The character generator board has 1 uF tantalums directly
across the -15V and -50V rails; try disconnecting it and see
what happens with your -15V measurement.


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