HP23 power supply boards still available

[mike bryce]

I still have PLENTY of HP-23 power supply boards left. Just in time so you
can make that resolution to fix the old supply this coming new year..

each kit comes with DETAILED assembly instructions INCLUDING a CD rom full
of photographs.

One of the problems with the HP-23 series is the electrolytic capacitors
going bad. Replacements that fit are gosh awful expensive. The fix? Why not
use the new high tech caps we have today and mount them on a PC board?

*    Increased plate filter capacitors
*    Increased +300 filter capacitors
*    Added current limit resistor to the +300 supply
*    Increase diode capacity and voltage
*    Increase +300 volt output filter
*    Added adjustable bias control
*    Option to add the series regulator
*    Reduce wasted power in bleeder resistors
*    Increased wattage on all bleeder resistors

You can have your choice to use the regulator or the older choke circuit.
The Heathkit radios will not work any better on the regulated supply.

Good News!

PC boards are ready and in stock!

PC board and instruction $15

PC board with diodes and bias components $24

PC board with all parts for the choke supply $65

PC board with all parts for regulator supply $92

shipping is an extra $4 for US Priority mail

Mike Bryce WB8VGE
SunLight Energy Systems

http://www.seslogic.com
http://www.theheathkitshop.com

"Electricity at the speed of light"

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