HP-67 wall charger - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: HP-67 wall charger (/thread-218479.html) |
HP-67 wall charger - Wytnucls - 04-19-2012 I am looking for parts to fix a HP-67 charger.
Also, transistors were made by HP and are now difficult to obtain. Are there modern equivalent parts to PNP1853-0015,PNP1853-0338 and NPN1854-0581?
Re: HP-67 wall charger - Ignazio Cara (Italy) - 04-19-2012 Hi, HTH
Ignazio
Re: HP-67 wall charger - Dan W - 04-19-2012 That is a very good page on the charger. We decided after some experimentation a 5.1V works best. Some of the discussion is here: |