--- In Repeater-Builder@yahoogroups.com, "jim80362000" <[EMAIL PROTECTED]> wrote: > > I have a high voltage power supply/tpn1131A. Need Q51/48-869349/M9349 > transistor, for power control board,Can I use a substitute? And who may > carry them. Tried a few local supply places with no luck.Any help would > be appreciated. Thank you. > The EIA 274 marking on the TO66 package indicates the item was mfg'd by RCA. The device is an SCR. I suggest you try a 2n3525 which is now mfg'd by GE and is cross referenced on their data sheet as 5A & 500V. 73 Allan Crites WA9ZZU
