[Heathkit] HP-1144 PS

[Richard]

Same concern but an external crowbar (zener/SCR) will do just as well.  I
use them in my homebrew supplies.


On Thu, 8/21/08, Joe Hatvany <joekb7svi at verizon.net> wrote:

Does any one know if I can find a source for parts to upgrade the( HP-1144 
PS to a HP-1144A ? As it happens my HP-1144 does not have the crowbar 
circuit included, on the regulator board an did some nasty things to my 
SB-104A's "A" & "B" boards, and possibly rhe Output Transistors when the 
un-soldered ground pin came loose from the regulator board. (poor kit 
building )