sb101,102,hw101.

James Montress w2jjm at MSN.COM
Wed Feb 5 15:02:17 EST 2003


This line of equipment was designed when AC line voltages were much lower
than they are today. If you want a cooler running rig with no loss of 6ea8 and
6au6 tubes due to leaks and shorts the solution is easy. In your HP-23 power 
supply install four (4) RS-271-131 one (1) ohm 10 watt resistors all in parallel
in the 12.6 volt feed lead. This 0.25 ohms will bring your two filament strings
down to mfgs specs of 6.3 vac. If there is any small imbalance left you may 
wish to hand pick your pilot lites. Good luck.

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